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src/camera_view_gizmo/README.md

@@ -0,0 +1,27 @@
+# Camera View Gizmo
+
+Independent Panda3D camera navigation widget.
+
+Features:
+
+- top-right overlay widget
+- six axis-aligned camera views
+- configurable smooth transition, default `0.2s`
+- perspective / orthographic toggle button
+- no dependency on ImGui or this project's transform gizmo
+
+Minimal usage:
+
+```python
+from src.plugins.camera_view_gizmo import CameraViewGizmo, CameraViewGizmoConfig
+
+gizmo = CameraViewGizmo(
+    base,
+    camera_np=base.camera,
+    get_pivot=lambda: (0, 0, 0),
+    config=CameraViewGizmoConfig(),
+)
+```
+
+For hosts that keep their own orbit-controller state, pass an
+`on_camera_changed` callback and sync the host controller from the camera pose.

src/camera_view_gizmo/__init__.py

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+from .camera_view_gizmo import CameraViewGizmo, ProjectionMode, ViewFace
+from .config import CameraViewGizmoConfig
+
+__all__ = [
+    "CameraViewGizmo",
+    "CameraViewGizmoConfig",
+    "ProjectionMode",
+    "ViewFace",
+]

src/camera_view_gizmo/camera_view_gizmo.py

@@ -0,0 +1,777 @@
+from __future__ import annotations
+
+import importlib.util
+import math
+from dataclasses import dataclass
+from typing import Callable, Dict, Optional
+
+import panda3d.core as p3d
+from direct.showbase.DirectObject import DirectObject
+from direct.showbase.ShowBase import ShowBase
+from direct.showbase.ShowBaseGlobal import globalClock
+from direct.task import Task
+
+from .config import CameraViewGizmoConfig
+
+HAS_IMGUI = False
+if importlib.util.find_spec("imgui_bundle"):
+    from imgui_bundle import imgui
+    HAS_IMGUI = True
+
+
+class ViewFace:
+    POS_X = "+x"
+    NEG_X = "-x"
+    POS_Y = "+y"
+    NEG_Y = "-y"
+    POS_Z = "+z"
+    NEG_Z = "-z"
+
+    ALL = (POS_X, NEG_X, POS_Y, NEG_Y, POS_Z, NEG_Z)
+
+
+class ProjectionMode:
+    PERSPECTIVE = "perspective"
+    ORTHOGRAPHIC = "orthographic"
+
+
+@dataclass(slots=True)
+class _EndpointVisual:
+    face: str
+    axis: p3d.Vec3
+    color: p3d.Vec4
+    label: str
+    root: p3d.NodePath
+    card: p3d.NodePath
+    text: p3d.NodePath
+
+
+@dataclass(slots=True)
+class _TransitionState:
+    start_pos: p3d.Point3
+    end_pos: p3d.Point3
+    start_pivot: p3d.Point3
+    end_pivot: p3d.Point3
+    start_up: p3d.Vec3
+    end_up: p3d.Vec3
+    duration: float
+    elapsed: float = 0.0
+
+
+class CameraViewGizmo(DirectObject):
+    """
+    Independent Panda3D camera navigation widget.
+
+    It renders a small overlay in the top-right corner, mirrors the main
+    camera orientation, supports six axis-aligned views, and can toggle the
+    main camera lens between perspective and orthographic projection.
+    """
+
+    FACE_AXIS: Dict[str, p3d.Vec3] = {
+        ViewFace.POS_X: p3d.Vec3(1, 0, 0),
+        ViewFace.NEG_X: p3d.Vec3(-1, 0, 0),
+        ViewFace.POS_Y: p3d.Vec3(0, 1, 0),
+        ViewFace.NEG_Y: p3d.Vec3(0, -1, 0),
+        ViewFace.POS_Z: p3d.Vec3(0, 0, 1),
+        ViewFace.NEG_Z: p3d.Vec3(0, 0, -1),
+    }
+
+    FACE_LABEL: Dict[str, str] = {
+        ViewFace.POS_X: "+X",
+        ViewFace.NEG_X: "-X",
+        ViewFace.POS_Y: "+Y",
+        ViewFace.NEG_Y: "-Y",
+        ViewFace.POS_Z: "+Z",
+        ViewFace.NEG_Z: "-Z",
+    }
+
+    OPPOSITE_FACE: Dict[str, str] = {
+        ViewFace.POS_X: ViewFace.NEG_X,
+        ViewFace.NEG_X: ViewFace.POS_X,
+        ViewFace.POS_Y: ViewFace.NEG_Y,
+        ViewFace.NEG_Y: ViewFace.POS_Y,
+        ViewFace.POS_Z: ViewFace.NEG_Z,
+        ViewFace.NEG_Z: ViewFace.POS_Z,
+    }
+
+    def __init__(
+        self,
+        base: ShowBase,
+        camera_np: Optional[p3d.NodePath] = None,
+        lens: Optional[p3d.Lens] = None,
+        *,
+        window: Optional[p3d.GraphicsOutput] = None,
+        config: Optional[CameraViewGizmoConfig] = None,
+        get_pivot: Optional[Callable[[], p3d.LPoint3f | p3d.LPoint3d | p3d.LVecBase3f | tuple[float, float, float]]] = None,
+        on_camera_changed: Optional[Callable[["CameraViewGizmo"], None]] = None,
+        interaction_blocker: Optional[Callable[[], bool]] = None,
+        register_events: bool = True,
+    ) -> None:
+        super().__init__()
+        self.base = base
+        self.camera_np = camera_np or getattr(base, "camera", None) or getattr(base, "cam", None)
+        if self.camera_np is None:
+            raise RuntimeError("CameraViewGizmo requires a valid Panda3D camera transform NodePath")
+        self.camera_lens_np = self._resolve_camera_lens_np(self.camera_np) or getattr(base, "cam", None)
+        if self.camera_lens_np is None or self.camera_lens_np.isEmpty():
+            raise RuntimeError("CameraViewGizmo could not resolve a Panda3D Camera node with lens")
+        self.camera_node: p3d.Camera = self.camera_lens_np.node()
+        self.render = base.render
+        self.window = window or base.win
+        self.config = config or CameraViewGizmoConfig()
+        self.get_pivot = get_pivot or (lambda: p3d.Point3(0, 0, 0))
+        self.on_camera_changed = on_camera_changed
+        self.interaction_blocker = interaction_blocker
+        self._events_registered = bool(register_events)
+        self._projection_icon_hovered = False
+        self._hover_face: str | None = None
+        self._pointer_inside_widget = False
+        self._pointer_pressed_on_widget = False
+        self._pending_pointer_xy: tuple[float, float] | None = None
+        self._last_region_rect: tuple[float, float, float, float] | None = None
+        self._transition: _TransitionState | None = None
+        self._stored_perspective_lens: p3d.Lens | None = None
+        self._lens = lens or self.camera_node.getLens()
+        self._projection_mode = self._detect_projection_mode(self._lens)
+
+        self._widget_root = p3d.NodePath("camera_view_gizmo_render")
+        self._model_root = self._widget_root.attachNewNode("camera_view_gizmo_root")
+        self._ui_root = self._widget_root.attachNewNode("camera_view_gizmo_ui")
+        self._overlay_camera_np: p3d.NodePath | None = None
+        self._overlay_dr: p3d.DisplayRegion | None = None
+        self._axis_line_nodes: dict[str, p3d.NodePath] = {}
+        self._endpoints: dict[str, _EndpointVisual] = {}
+        self._center_perspective_np: p3d.NodePath | None = None
+        self._center_orthographic_np: p3d.NodePath | None = None
+
+        self._setup_overlay()
+        self._build_visuals()
+        if self._events_registered:
+            self._register_events()
+
+        self.base.taskMgr.add(self._update_task, "camera-view-gizmo-update")
+
+    def _resolve_camera_lens_np(self, node_path: p3d.NodePath | None) -> p3d.NodePath | None:
+        if node_path is None or node_path.isEmpty():
+            return None
+        try:
+            if hasattr(node_path.node(), "getLens"):
+                return node_path
+        except Exception:
+            pass
+        try:
+            candidate = node_path.find("**/+Camera")
+            if candidate is not None and not candidate.isEmpty():
+                return candidate
+        except Exception:
+            pass
+        return None
+
+    @property
+    def is_hovering(self) -> bool:
+        return self._pointer_inside_widget
+
+    @property
+    def captures_mouse(self) -> bool:
+        return self._pointer_inside_widget or self._pointer_pressed_on_widget
+
+    @property
+    def projection_mode(self) -> str:
+        return self._projection_mode
+
+    def destroy(self) -> None:
+        self.ignoreAll()
+        self.base.taskMgr.remove("camera-view-gizmo-update")
+        if self._overlay_dr is not None and self.window is not None:
+            self.window.removeDisplayRegion(self._overlay_dr)
+            self._overlay_dr = None
+        if self._widget_root is not None:
+            self._widget_root.removeNode()
+        self._widget_root = None
+
+    def _is_interaction_blocked(self) -> bool:
+        blocker = self.interaction_blocker
+        if blocker is not None:
+            try:
+                return bool(blocker())
+            except Exception:
+                pass
+        if HAS_IMGUI:
+            try:
+                io = imgui.get_io()
+                if io and io.want_capture_mouse:
+                    return True
+            except Exception:
+                pass
+        return False
+
+    def snap_to_face(self, face: str, duration: float | None = None) -> None:
+        face = str(face).lower()
+        if face not in self.FACE_AXIS:
+            raise ValueError(f"Unsupported view face: {face}")
+
+        pivot = self._get_pivot_point()
+        axis = p3d.Vec3(self.FACE_AXIS[face])
+        current_pos = self.camera_np.getPos(self.render)
+        distance = max((current_pos - pivot).length(), 0.5)
+        end_pos = pivot + axis * distance
+        start_up = self.camera_np.getQuat(self.render).getUp()
+        end_up = self._up_vector_for_face(face)
+
+        actual_duration = self.config.transition_duration if duration is None else max(0.0, float(duration))
+        if actual_duration <= 1e-4:
+            self._transition = None
+            self._apply_camera_pose(end_pos, pivot, end_up)
+            return
+
+        self._transition = _TransitionState(
+            start_pos=p3d.Point3(current_pos),
+            end_pos=p3d.Point3(end_pos),
+            start_pivot=p3d.Point3(pivot),
+            end_pivot=p3d.Point3(pivot),
+            start_up=p3d.Vec3(start_up),
+            end_up=p3d.Vec3(end_up),
+            duration=actual_duration,
+        )
+
+    def toggle_projection(self) -> None:
+        if self._projection_mode == ProjectionMode.PERSPECTIVE:
+            self.set_projection_mode(ProjectionMode.ORTHOGRAPHIC)
+        else:
+            self.set_projection_mode(ProjectionMode.PERSPECTIVE)
+
+    def set_projection_mode(self, mode: str) -> None:
+        mode = str(mode).lower()
+        if mode == self._projection_mode:
+            return
+        if mode == ProjectionMode.ORTHOGRAPHIC:
+            self._switch_to_orthographic()
+        elif mode == ProjectionMode.PERSPECTIVE:
+            self._switch_to_perspective()
+        else:
+            raise ValueError(f"Unsupported projection mode: {mode}")
+        self._projection_mode = mode
+        self._notify_camera_changed()
+
+    def _setup_overlay(self) -> None:
+        if self.window is None:
+            raise RuntimeError("CameraViewGizmo requires an active Panda3D graphics output")
+
+        self._overlay_dr = self.window.makeDisplayRegion()
+        self._overlay_dr.setSort(self.config.overlay_sort)
+        self._overlay_dr.setClearColorActive(False)
+        self._overlay_dr.setClearDepthActive(True)
+
+        cam = p3d.Camera("camera_view_gizmo_cam")
+        cam_lens = p3d.OrthographicLens()
+        cam_lens.setFilmSize(self.config.widget_film_size, self.config.widget_film_size)
+        cam_lens.setNearFar(-100.0, 100.0)
+        cam.setLens(cam_lens)
+        cam.setScene(self._widget_root)
+        self._overlay_camera_np = self._widget_root.attachNewNode(cam)
+        self._overlay_camera_np.setPos(0, -12, 0)
+        self._overlay_camera_np.lookAt(0, 0, 0)
+        self._overlay_dr.setCamera(self._overlay_camera_np)
+
+    def _build_visuals(self) -> None:
+        self._build_axes()
+        self._build_center_projection_toggle()
+
+    def _build_axes(self) -> None:
+        axis_specs = [
+            ("x", p3d.Vec3(1, 0, 0), self.config.x_axis_rgba),
+            ("y", p3d.Vec3(0, 1, 0), self.config.y_axis_rgba),
+            ("z", p3d.Vec3(0, 0, 1), self.config.z_axis_rgba),
+        ]
+        for axis_name, axis_vec, rgba in axis_specs:
+            self._axis_line_nodes[axis_name] = self._create_axis_line(axis_name, axis_vec, rgba)
+
+        for face in ViewFace.ALL:
+            axis = self.FACE_AXIS[face]
+            positive = face.startswith("+")
+            base_rgba = self._color_for_axis(axis)
+            if not positive:
+                base_rgba = self._lighten_rgba(base_rgba, self.config.negative_axis_rgba_scale)
+            endpoint = self._create_endpoint(face, axis, base_rgba, self.FACE_LABEL[face])
+            self._endpoints[face] = endpoint
+
+    def _build_center_projection_toggle(self) -> None:
+        self._center_perspective_np = self._create_center_circle_icon()
+        self._center_orthographic_np = self._create_center_cube_icon()
+        self._ui_root.setPos(0.0, 0.0, self._projection_icon_center_z())
+
+    def _create_center_circle_icon(self) -> p3d.NodePath:
+        root = self._ui_root.attachNewNode("camera_view_gizmo_center_circle")
+        radius = self.config.center_icon_size
+
+        ring = p3d.LineSegs("camera_view_gizmo_center_ring")
+        ring.setThickness(self.config.center_icon_line_thickness)
+        ring.setColor(*self.config.center_icon_rgba)
+        segments = 28
+        for index in range(segments + 1):
+            angle = (math.tau * index) / segments
+            x = math.cos(angle) * radius
+            z = math.sin(angle) * radius
+            if index == 0:
+                ring.moveTo(x, 0.0, z)
+            else:
+                ring.drawTo(x, 0.0, z)
+        ring_np = root.attachNewNode(ring.create())
+        ring_np.setDepthWrite(False)
+        ring_np.setDepthTest(False)
+        ring_np.setTransparency(p3d.TransparencyAttrib.MAlpha)
+        ring_np.setBin("fixed", 7)
+        return root
+
+    def _create_center_cube_icon(self) -> p3d.NodePath:
+        root = self._ui_root.attachNewNode("camera_view_gizmo_center_cube")
+        cube = p3d.LineSegs("camera_view_gizmo_center_cube_lines")
+        cube.setThickness(self.config.center_icon_line_thickness)
+        cube.setColor(*self.config.center_icon_rgba)
+
+        size = self.config.center_icon_size * 0.78
+        corners = [
+            p3d.Point3(-size, -size, -size),
+            p3d.Point3(size, -size, -size),
+            p3d.Point3(size, size, -size),
+            p3d.Point3(-size, size, -size),
+            p3d.Point3(-size, -size, size),
+            p3d.Point3(size, -size, size),
+            p3d.Point3(size, size, size),
+            p3d.Point3(-size, size, size),
+        ]
+        edges = [
+            (0, 1), (1, 2), (2, 3), (3, 0),
+            (4, 5), (5, 6), (6, 7), (7, 4),
+            (0, 4), (1, 5), (2, 6), (3, 7),
+        ]
+        for start_idx, end_idx in edges:
+            cube.moveTo(corners[start_idx])
+            cube.drawTo(corners[end_idx])
+        cube_np = root.attachNewNode(cube.create())
+        cube_np.setDepthWrite(False)
+        cube_np.setDepthTest(False)
+        cube_np.setTransparency(p3d.TransparencyAttrib.MAlpha)
+        cube_np.setBin("fixed", 7)
+        root.setHpr(45.0, -26.0, 0.0)
+        return root
+
+    def _create_axis_line(self, axis_name: str, axis_vec: p3d.Vec3, rgba: tuple[float, float, float, float]) -> p3d.NodePath:
+        segs = p3d.LineSegs(f"camera_view_gizmo_axis_{axis_name}")
+        segs.setThickness(self.config.axis_thickness)
+        length = self.config.axis_length
+        segs.setColor(rgba[0], rgba[1], rgba[2], self.config.axis_line_alpha_back)
+        segs.moveTo(*(axis_vec * -length))
+        segs.drawTo(0, 0, 0)
+        segs.setColor(rgba[0], rgba[1], rgba[2], self.config.axis_line_alpha_front)
+        segs.moveTo(0, 0, 0)
+        segs.drawTo(*(axis_vec * length))
+        axis_np = self._model_root.attachNewNode(segs.create())
+        axis_np.setTransparency(p3d.TransparencyAttrib.MAlpha)
+        axis_np.setDepthWrite(False)
+        axis_np.setBin("fixed", 2)
+        return axis_np
+
+    def _create_endpoint(
+        self,
+        face: str,
+        axis: p3d.Vec3,
+        rgba: p3d.Vec4,
+        label: str,
+    ) -> _EndpointVisual:
+        root = self._model_root.attachNewNode(f"camera_view_gizmo_endpoint_{face}")
+        root.setPos(*(axis * self.config.axis_length))
+
+        card_maker = p3d.CardMaker(f"camera_view_gizmo_endpoint_card_{face}")
+        radius = self.config.endpoint_radius * self.config.endpoint_size_scale
+        card_maker.setFrame(-radius, radius, -radius, radius)
+        card = root.attachNewNode(card_maker.generate())
+        card.setBillboardPointEye()
+        card.setTransparency(p3d.TransparencyAttrib.MAlpha)
+        card.setDepthWrite(False)
+        card.setBin("fixed", 3)
+        card.setColor(rgba)
+
+        text_node = p3d.TextNode(f"camera_view_gizmo_endpoint_label_{face}")
+        text_node.setAlign(p3d.TextNode.ACenter)
+        text_node.setText(label)
+        text_node.setTextColor(*self.config.endpoint_text_rgba)
+        if self.config.endpoint_font:
+            font = self.base.loader.loadFont(self.config.endpoint_font)
+            if font:
+                text_node.setFont(font)
+        text = root.attachNewNode(text_node)
+        text.setBillboardPointEye()
+        label_scale = self.config.endpoint_label_scale * self.config.endpoint_size_scale
+        text.setPos(0, -0.01, -(label_scale * 0.38))
+        text.setScale(label_scale)
+        text.setDepthWrite(False)
+        text.setDepthTest(False)
+        text.setBin("fixed", 4)
+
+        return _EndpointVisual(
+            face=face,
+            axis=p3d.Vec3(axis),
+            color=p3d.Vec4(rgba),
+            label=label,
+            root=root,
+            card=card,
+            text=text,
+        )
+
+    def _register_events(self) -> None:
+        self.accept("mouse1", self._on_mouse1_down)
+        self.accept("mouse1-up", self._on_mouse1_up)
+        self.accept("mouse-move", self._on_mouse_move)
+
+    def _on_mouse1_down(self, evt=None) -> None:
+        if self._is_interaction_blocked():
+            self._pointer_pressed_on_widget = False
+            return
+        pointer = self._extract_pointer_xy(evt)
+        if pointer is None:
+            self._pointer_pressed_on_widget = False
+            return
+        self._pending_pointer_xy = pointer
+        self._pointer_pressed_on_widget = self._is_pointer_in_region(pointer)
+        if not self._pointer_pressed_on_widget:
+            return
+
+        local = self._pointer_to_widget_local(pointer)
+        if local is None:
+            return
+
+        if self._is_projection_toggle_hit(local):
+            self.toggle_projection()
+            return
+
+        face = self._pick_face(local)
+        if face:
+            face = self._resolve_face_click_target(face)
+            self.snap_to_face(face)
+
+    def handle_mouse1_down(self, x: float, y: float) -> None:
+        self._on_mouse1_down({"x": x, "y": y})
+
+    def handle_mouse1_up(self, x: float, y: float) -> None:
+        self._on_mouse1_up({"x": x, "y": y})
+
+    def handle_mouse_move(self, x: float, y: float) -> None:
+        self._on_mouse_move({"x": x, "y": y})
+
+    def _on_mouse1_up(self, evt=None) -> None:
+        pointer = self._extract_pointer_xy(evt)
+        if pointer is not None:
+            self._pending_pointer_xy = pointer
+        self._pointer_pressed_on_widget = False
+
+    def _on_mouse_move(self, evt=None) -> None:
+        if self._is_interaction_blocked():
+            self._pointer_inside_widget = False
+            self._projection_icon_hovered = False
+            self._hover_face = None
+            return
+        pointer = self._extract_pointer_xy(evt)
+        if pointer is not None:
+            self._pending_pointer_xy = pointer
+
+    def _update_task(self, task: Task):
+        self._update_display_region()
+        self._update_hover_state()
+        self._sync_widget_orientation()
+        self._advance_transition(globalClock.getDt())
+        self._update_visual_state()
+        return task.cont
+
+    def _update_display_region(self) -> None:
+        if self.window is None or self._overlay_dr is None:
+            return
+        win_x = max(1, self.window.getXSize())
+        win_y = max(1, self.window.getYSize())
+        size_px = float(min(self.config.size_px, win_x, win_y))
+        margin = float(self.config.margin_px)
+        left = max(0.0, win_x - size_px - margin)
+        right = min(float(win_x), win_x - margin)
+        top = max(0.0, margin)
+        bottom = min(float(win_y), margin + size_px)
+        if right <= left or bottom <= top:
+            return
+        rect = (left, top, right, bottom)
+        if rect == self._last_region_rect:
+            return
+        self._last_region_rect = rect
+        self._overlay_dr.setDimensions(
+            left / win_x,
+            right / win_x,
+            max(0.0, (win_y - bottom) / win_y),
+            min(1.0, (win_y - top) / win_y),
+        )
+
+    def _update_hover_state(self) -> None:
+        if self._is_interaction_blocked():
+            self._pointer_inside_widget = False
+            self._hover_face = None
+            self._projection_icon_hovered = False
+            self._pointer_pressed_on_widget = False
+            return
+        pointer = self._get_pointer_xy()
+        if pointer is None or not self._is_pointer_in_region(pointer):
+            self._pointer_inside_widget = False
+            self._hover_face = None
+            self._projection_icon_hovered = False
+            return
+        self._pointer_inside_widget = True
+        local = self._pointer_to_widget_local(pointer)
+        self._projection_icon_hovered = self._is_projection_toggle_hit(local) if local is not None else False
+        self._hover_face = None if self._projection_icon_hovered else self._pick_face(local)
+
+    def _sync_widget_orientation(self) -> None:
+        quat = p3d.Quat(self.camera_np.getQuat(self.render))
+        quat.invertInPlace()
+        self._model_root.setQuat(quat)
+
+    def _advance_transition(self, dt: float) -> None:
+        if self._transition is None:
+            return
+        self._transition.elapsed = min(self._transition.elapsed + max(0.0, float(dt)), self._transition.duration)
+        t = self._transition.elapsed / self._transition.duration
+        t = t * t * (3.0 - 2.0 * t)
+
+        pos = self._lerp_point(self._transition.start_pos, self._transition.end_pos, t)
+        pivot = self._lerp_point(self._transition.start_pivot, self._transition.end_pivot, t)
+        up = self._lerp_vec(self._transition.start_up, self._transition.end_up, t)
+        self._apply_camera_pose(pos, pivot, up)
+        if self._transition.elapsed >= self._transition.duration:
+            self._transition = None
+
+    def _update_visual_state(self) -> None:
+        center_color = self.config.center_icon_hover_rgba if self._projection_icon_hovered else self.config.center_icon_rgba
+        if self._center_perspective_np is not None:
+            if self._projection_mode == ProjectionMode.PERSPECTIVE:
+                self._center_perspective_np.show()
+            else:
+                self._center_perspective_np.hide()
+            self._center_perspective_np.setColor(*center_color)
+        if self._center_orthographic_np is not None:
+            if self._projection_mode == ProjectionMode.ORTHOGRAPHIC:
+                self._center_orthographic_np.show()
+            else:
+                self._center_orthographic_np.hide()
+            self._center_orthographic_np.setColor(*center_color)
+
+        for face, endpoint in self._endpoints.items():
+            local_pos = self._model_root.getQuat().xform(endpoint.axis * self.config.axis_length)
+            depth = max(-1.0, min(1.0, float(local_pos.y / max(1e-6, self.config.axis_length))))
+            frontness = max(0.0, (-depth + 1.0) * 0.5)
+            front_radius = self.config.endpoint_radius * self.config.endpoint_size_scale
+            back_radius = self.config.endpoint_radius_back * self.config.endpoint_size_scale
+            radius = back_radius + (front_radius - back_radius) * frontness
+            if face == self._hover_face:
+                radius *= self.config.endpoint_hover_scale
+            endpoint.card.setScale(radius / max(front_radius, 1e-6))
+            alpha = 0.58 + 0.42 * frontness
+            endpoint.card.setColor(endpoint.color.x, endpoint.color.y, endpoint.color.z, alpha)
+            endpoint.card.setY(-0.06 * depth)
+            endpoint.text.setSa(0.72 + 0.28 * frontness)
+
+        for axis_name, axis_np in self._axis_line_nodes.items():
+            axis_vec = {
+                "x": p3d.Vec3(1, 0, 0),
+                "y": p3d.Vec3(0, 1, 0),
+                "z": p3d.Vec3(0, 0, 1),
+            }[axis_name]
+            local_axis = self._model_root.getQuat().xform(axis_vec)
+            axis_np.setY(0.03 * local_axis.y)
+
+    def _detect_projection_mode(self, lens: p3d.Lens) -> str:
+        return ProjectionMode.PERSPECTIVE if lens.isPerspective() else ProjectionMode.ORTHOGRAPHIC
+
+    def _switch_to_orthographic(self) -> None:
+        current_lens = self.camera_node.getLens()
+        self._stored_perspective_lens = current_lens.makeCopy()
+
+        ortho = p3d.OrthographicLens()
+        aspect = self._safe_aspect_ratio()
+        pivot = self._get_pivot_point()
+        cam_pos = self.camera_np.getPos(self.render)
+        distance = max((cam_pos - pivot).length(), 0.5)
+        fov_y = float(current_lens.getFov()[1])
+        ortho_height = max(0.1, 2.0 * distance * math.tan(math.radians(fov_y) * 0.5))
+        ortho.setFilmSize(max(0.1, ortho_height * aspect), ortho_height)
+        try:
+            ortho.setNearFar(current_lens.getNear(), current_lens.getFar())
+        except Exception:
+            ortho.setNearFar(-1000.0, 1000.0)
+        self.camera_node.setLens(ortho)
+
+    def _switch_to_perspective(self) -> None:
+        perspective = self._stored_perspective_lens.makeCopy() if self._stored_perspective_lens else p3d.PerspectiveLens()
+        self.camera_node.setLens(perspective)
+
+    def _apply_camera_pose(self, pos: p3d.Point3, pivot: p3d.Point3, up: p3d.Vec3) -> None:
+        self.camera_np.setPos(self.render, pos)
+        safe_up = p3d.Vec3(up)
+        if safe_up.lengthSquared() <= 1e-8:
+            safe_up = p3d.Vec3(0, 0, 1)
+        safe_up.normalize()
+        self.camera_np.lookAt(pivot, safe_up)
+        self._notify_camera_changed()
+
+    def _notify_camera_changed(self) -> None:
+        if self.on_camera_changed is not None:
+            self.on_camera_changed(self)
+
+    def _get_pointer_xy(self) -> tuple[float, float] | None:
+        if self._pending_pointer_xy is not None:
+            return self._pending_pointer_xy
+        win = self.window
+        if win is not None and hasattr(win, "getPointer"):
+            pointer = win.getPointer(0)
+            return float(pointer.getX()), float(pointer.getY())
+        return self._pending_pointer_xy
+
+    def _extract_pointer_xy(self, evt=None) -> tuple[float, float] | None:
+        if isinstance(evt, dict) and "x" in evt and "y" in evt:
+            return float(evt["x"]), float(evt["y"])
+        return self._get_pointer_xy()
+
+    def _is_pointer_in_region(self, pointer: tuple[float, float] | None) -> bool:
+        if pointer is None or self._last_region_rect is None:
+            return False
+        x, y = pointer
+        left, top, right, bottom = self._last_region_rect
+        return left <= x <= right and top <= y <= bottom
+
+    def _pointer_to_widget_local(self, pointer: tuple[float, float] | None) -> tuple[float, float] | None:
+        if pointer is None or self._last_region_rect is None:
+            return None
+        x, y = pointer
+        left, top, right, bottom = self._last_region_rect
+        width = max(1e-6, right - left)
+        height = max(1e-6, bottom - top)
+        nx = ((x - left) / width) * 2.0 - 1.0
+        ny = (1.0 - ((y - top) / height)) * 2.0 - 1.0
+        half_film = self.config.widget_film_size * 0.5
+        return nx * half_film, ny * half_film
+
+    def _pick_face(self, local_xy: tuple[float, float] | None) -> str | None:
+        if local_xy is None:
+            return None
+        x, z = local_xy
+        best_face = None
+        best_dist_sq = None
+        for face, endpoint in self._endpoints.items():
+            pos = self._model_root.getQuat().xform(endpoint.axis * self.config.axis_length)
+            radius = (
+                self.config.endpoint_radius
+                if face.startswith("+")
+                else self.config.endpoint_radius_back
+            ) * self.config.endpoint_size_scale
+            dx = x - pos.x
+            dz = z - pos.z
+            dist_sq = dx * dx + dz * dz
+            if dist_sq > (radius * radius):
+                continue
+            if best_face is None or dist_sq < best_dist_sq:
+                best_face = face
+                best_dist_sq = dist_sq
+        return best_face
+
+    def _is_projection_toggle_hit(self, local_xy: tuple[float, float] | None) -> bool:
+        if local_xy is None:
+            return False
+        x, z = local_xy
+        z -= self._projection_icon_center_z()
+        radius = self.config.center_icon_hit_radius
+        return (x * x + z * z) <= (radius * radius)
+
+    def _resolve_face_click_target(self, face: str) -> str:
+        normalized_face = str(face).lower()
+        if normalized_face not in self.FACE_AXIS:
+            return normalized_face
+        if self._is_camera_aligned_to_face(normalized_face):
+            return self.OPPOSITE_FACE.get(normalized_face, normalized_face)
+        return normalized_face
+
+    def _is_camera_aligned_to_face(self, face: str, tolerance_deg: float = 8.0) -> bool:
+        pivot = self._get_pivot_point()
+        cam_pos = self.camera_np.getPos(self.render)
+        view_vec = p3d.Vec3(cam_pos - pivot)
+        if view_vec.lengthSquared() <= 1e-8:
+            return False
+        view_vec.normalize()
+
+        target_axis = p3d.Vec3(self.FACE_AXIS[face])
+        if target_axis.lengthSquared() <= 1e-8:
+            return False
+        target_axis.normalize()
+
+        dot = max(-1.0, min(1.0, float(view_vec.dot(target_axis))))
+        tolerance_cos = math.cos(math.radians(max(0.0, float(tolerance_deg))))
+        return dot >= tolerance_cos
+
+    def _get_pivot_point(self) -> p3d.Point3:
+        value = self.get_pivot()
+        if isinstance(value, p3d.NodePath):
+            return p3d.Point3(value.getPos(self.render))
+        if isinstance(value, p3d.LVecBase3):
+            return p3d.Point3(value)
+        return p3d.Point3(*value)
+
+    def _up_vector_for_face(self, face: str) -> p3d.Vec3:
+        if face in {ViewFace.POS_Z, ViewFace.NEG_Z}:
+            return p3d.Vec3(*self.config.top_bottom_up_axis)
+        return p3d.Vec3(*self.config.horizontal_up_axis)
+
+    def _safe_aspect_ratio(self) -> float:
+        win = self.window
+        if win is None:
+            return 1.0
+        x = max(1, win.getXSize())
+        y = max(1, win.getYSize())
+        return float(x) / float(y)
+
+    def _color_for_axis(self, axis: p3d.Vec3) -> p3d.Vec4:
+        if abs(axis.x) > 0.5:
+            return p3d.Vec4(*self.config.x_axis_rgba)
+        if abs(axis.y) > 0.5:
+            return p3d.Vec4(*self.config.y_axis_rgba)
+        return p3d.Vec4(*self.config.z_axis_rgba)
+
+    def _projection_icon_center_z(self) -> float:
+        endpoint_extent = self.config.endpoint_radius * self.config.endpoint_size_scale
+        return -(
+            self.config.axis_length
+            + endpoint_extent
+            + self.config.projection_icon_gap
+            + self.config.center_icon_hit_radius
+        )
+
+    @staticmethod
+    def _lighten_rgba(color: p3d.Vec4, factor: float) -> p3d.Vec4:
+        t = max(0.0, min(1.0, float(factor)))
+        return p3d.Vec4(
+            color.x + (1.0 - color.x) * t,
+            color.y + (1.0 - color.y) * t,
+            color.z + (1.0 - color.z) * t,
+            color.w,
+        )
+
+    @staticmethod
+    def _lerp_point(a: p3d.Point3, b: p3d.Point3, t: float) -> p3d.Point3:
+        return p3d.Point3(
+            a.x + (b.x - a.x) * t,
+            a.y + (b.y - a.y) * t,
+            a.z + (b.z - a.z) * t,
+        )
+
+    @staticmethod
+    def _lerp_vec(a: p3d.Vec3, b: p3d.Vec3, t: float) -> p3d.Vec3:
+        value = p3d.Vec3(
+            a.x + (b.x - a.x) * t,
+            a.y + (b.y - a.y) * t,
+            a.z + (b.z - a.z) * t,
+        )
+        if value.lengthSquared() > 1e-8:
+            value.normalize()
+        return value

src/camera_view_gizmo/config.py

@@ -0,0 +1,63 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+
+
+@dataclass(slots=True)
+class CameraViewGizmoConfig:
+    # 组件在屏幕中的像素尺寸（正方形边长）
+    size_px: int = 148
+    # 组件距离窗口右上角的外边距
+    margin_px: int = 8
+    # 点击六视图后相机过渡动画时长（秒）
+    transition_duration: float = 0.2
+    # 三轴从中心延伸到端点的长度
+    axis_length: float = 1.0
+    # 六方向小方块整体缩放倍数
+    endpoint_size_scale: float = 1.5
+    # 正方向端点方块的基础半径
+    endpoint_radius: float = 0.22
+    # 反方向端点方块的基础半径
+    endpoint_radius_back: float = 0.16
+    # 鼠标悬停在端点上时的放大倍率
+    endpoint_hover_scale: float = 1.25
+    # 端点文字标签的基础缩放
+    endpoint_label_scale: float = 0.18
+    # 三轴线条的粗细
+    axis_thickness: float = 3.0
+    # Overlay 正交镜头的视口尺寸，影响整体构图比例
+    widget_film_size: float = 4.6
+    # 底部投影切换图标的尺寸
+    center_icon_size: float = 0.28
+    # 底部投影切换图标的点击命中半径
+    center_icon_hit_radius: float = 0.36
+    # 底部投影切换图标线条粗细
+    center_icon_line_thickness: float = 2.2
+    # 底部投影切换图标与六方向视图之间的间距
+    projection_icon_gap: float = 0.24
+    # Overlay DisplayRegion 的渲染排序值，越大越后绘制
+    overlay_sort: int = 8
+    # X 轴正方向的颜色
+    x_axis_rgba: tuple[float, float, float, float] = (0.93, 0.34, 0.29, 1.0)
+    # Y 轴正方向的颜色
+    y_axis_rgba: tuple[float, float, float, float] = (0.22, 0.74, 0.34, 1.0)
+    # Z 轴正方向的颜色
+    z_axis_rgba: tuple[float, float, float, float] = (0.31, 0.57, 0.95, 1.0)
+    # 反方向端点颜色向白色提亮的比例
+    negative_axis_rgba_scale: float = 0.46
+    # 朝向屏幕前方的轴线透明度
+    axis_line_alpha_front: float = 0.95
+    # 朝向屏幕后方的轴线透明度
+    axis_line_alpha_back: float = 0.42
+    # 透视/正交切换图标的默认颜色
+    center_icon_rgba: tuple[float, float, float, float] = (0.92, 0.93, 0.96, 0.95)
+    # 透视/正交切换图标悬停时的高亮颜色
+    center_icon_hover_rgba: tuple[float, float, float, float] = (1.0, 0.95, 0.64, 1.0)
+    # 六方向端点文字的颜色
+    endpoint_text_rgba: tuple[float, float, float, float] = (1.0, 1.0, 1.0, 1.0)
+    # 六方向端点文字使用的字体路径，None 表示使用默认字体
+    endpoint_font: str | None = None
+    # 顶视图/底视图时相机的朝上方向
+    top_bottom_up_axis: tuple[float, float, float] = (0.0, 1.0, 0.0)
+    # 侧视图/前后视图时相机的朝上方向
+    horizontal_up_axis: tuple[float, float, float] = (0.0, 0.0, 1.0)

src/camera_view_gizmo/demo_basic.py

@@ -0,0 +1,34 @@
+from __future__ import annotations
+
+from direct.showbase.ShowBase import ShowBase
+import panda3d.core as p3d
+
+from src.plugins.camera_view_gizmo import CameraViewGizmo, CameraViewGizmoConfig
+
+
+class DemoApp(ShowBase):
+    def __init__(self) -> None:
+        super().__init__()
+        self.disableMouse()
+
+        self.target = p3d.Point3(0, 0, 0)
+
+        model = self.loader.loadModel("models/environment")
+        model.reparentTo(self.render)
+        model.setScale(0.05)
+        model.setPos(-8, 42, 0)
+
+        self.camera.setPos(14, -18, 10)
+        self.camera.lookAt(self.target)
+
+        self.gizmo = CameraViewGizmo(
+            self,
+            camera_np=self.camera,
+            get_pivot=lambda: self.target,
+            config=CameraViewGizmoConfig(),
+        )
+
+
+if __name__ == "__main__":
+    app = DemoApp()
+    app.run()

src/impanda3d/editor.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+from pathlib import Path
+
 from imgui_bundle import hello_imgui, imgui, immapp, immvision # type: ignore
 
 from .config import INI_FILENAME, WINDOW_TITLE
@@ -13,9 +15,12 @@ class EditorApp:
 
         self.selected_node_path = "SceneRoot/PreviewRoot/Teapot"
         self.renderer.select_node_path(self.selected_node_path)
+        self._hierarchy_auto_expand_paths = self._ancestor_paths(self.selected_node_path)
         self.viewport_texture: immvision.GlTexture | None = None
         self.viewport_frame_version = -1
         self.viewport_frame_shape: tuple[int, int, int] | None = None
+        self._default_font = None
+        self._inspector_transform_edits: dict[tuple[str, str], tuple[float, float, float]] = {}
         self.render_scale = 1.0
         self._viewport_mouse_buttons = {"lmb": False, "mmb": False, "rmb": False}
         self._viewport_keys = {
@@ -28,6 +33,17 @@ class EditorApp:
             "r": False,
             "space": False,
         }
+        self._console_entries = [
+            ("Info", "Editor scene loaded", "Scene"),
+            ("Info", "编辑器启动完成，中文字体显示测试：控制台中文日志已启用", "Console"),
+            ("Info", "Panda3D offscreen viewport connected to ImGui", "Renderer"),
+            ("Info", "simplepbr preview pipeline active", "Renderer"),
+            ("Warning", "Viewport selection uses render picking; very small objects may need zooming in", "Picker"),
+        ]
+        self._console_show_info = True
+        self._console_show_warnings = True
+        self._console_show_errors = True
+        self._console_collapse = False
         
     def build_runner_params(self) -> tuple[hello_imgui.RunnerParams, immapp.AddOnsParams]:
         runner = hello_imgui.RunnerParams()
@@ -38,19 +54,43 @@ class EditorApp:
 
         runner.imgui_window_params.menu_app_title = "RobotMetaCore"
         runner.imgui_window_params.show_menu_bar = True
-        runner.imgui_window_params.show_status_bar = True
+        runner.imgui_window_params.show_status_bar = False
+        runner.imgui_window_params.show_status_fps = False
         runner.imgui_window_params.default_imgui_window_type = (
             hello_imgui.DefaultImGuiWindowType.provide_full_screen_dock_space
         )
 
-        runner.callbacks.show_status = self._show_status_bar
         runner.callbacks.before_exit = self._shutdown
+        runner.callbacks.load_additional_fonts = self._load_fonts
         runner.docking_params = self._build_docking_layout()
         runner.docking_params.layout_condition = hello_imgui.DockingLayoutCondition.application_start
 
         addons = immapp.AddOnsParams()
         return runner, addons
 
+    def _load_fonts(self) -> None:
+        fonts_dir = Path(__file__).resolve().parents[2] / "fonts"
+        font_size = 15.0
+
+        monaco_params = hello_imgui.FontLoadingParams()
+        monaco_params.inside_assets = False
+        self._default_font = hello_imgui.load_font(
+            str(fonts_dir / "monaco.ttf"),
+            font_size,
+            monaco_params,
+        )
+
+        msyh_params = hello_imgui.FontLoadingParams()
+        msyh_params.inside_assets = False
+        msyh_params.merge_to_last_font = True
+        hello_imgui.load_font(
+            str(fonts_dir / "msyh.ttc"),
+            font_size,
+            msyh_params,
+        )
+
+        imgui.get_io().font_default = self._default_font
+
     def _build_docking_layout(self) -> hello_imgui.DockingParams:
         layout = hello_imgui.DockingParams()
 
@@ -90,9 +130,9 @@ class EditorApp:
                 gui_function_=self.show_inspector,
             ),
             hello_imgui.DockableWindow(
-                label_="Stats",
+                label_="Console",
                 dock_space_name_="BottomSpace",
-                gui_function_=self.show_stats,
+                gui_function_=self.show_console,
             ),
         ]
         return layout
@@ -171,6 +211,9 @@ class EditorApp:
         if hovered and io.mouse_wheel != 0.0:
             self.renderer.queue_input_event("wheel", delta=io.mouse_wheel)
 
+        if hovered and ctrl_down and imgui.is_key_pressed(imgui.Key.z):
+            self.renderer.queue_input_event("undo_transform")
+
         if hovered or self._viewport_mouse_buttons["rmb"]:
             key_states = {
                 "w": imgui.is_key_down(imgui.Key.w),
@@ -241,8 +284,10 @@ class EditorApp:
 
             self._handle_viewport_input(hovered, rect_min)
             renderer_selected_path = self.renderer.selected_node_path()
-            if renderer_selected_path:
+            if renderer_selected_path and renderer_selected_path != self.selected_node_path:
                 self.selected_node_path = renderer_selected_path
+                self._inspector_transform_edits.clear()
+                self._hierarchy_auto_expand_paths = self._ancestor_paths(renderer_selected_path)
             # if hovered:
             #     imgui.set_tooltip("Alt+LMB orbit\nMMB pan\nAlt+RMB or Wheel dolly\nRMB look + WASD/QE fly\nF focus")
         else:
@@ -260,65 +305,217 @@ class EditorApp:
 
         for index, node in enumerate(nodes):
             self._draw_node_tree(node, f"root-{index}")
+        self._hierarchy_auto_expand_paths.clear()
 
     def _draw_node_tree(self, node, node_key: str) -> None:
-        tree_flags = imgui.TreeNodeFlags_.span_full_width
+        tree_flags = imgui.TreeNodeFlags_.span_full_width | imgui.TreeNodeFlags_.open_on_arrow
         if not node.children:
             tree_flags |= imgui.TreeNodeFlags_.leaf
         if node.path == self.selected_node_path:
             tree_flags |= imgui.TreeNodeFlags_.selected
 
+        if node.path in self._hierarchy_auto_expand_paths:
+            imgui.set_next_item_open(True, imgui.Cond_.always)
         opened = imgui.tree_node_ex(f"{node.name}##{node_key}", tree_flags)
-        if imgui.is_item_clicked():
+        if imgui.is_item_clicked() and not imgui.is_item_toggled_open():
             self.selected_node_path = node.path
+            self._inspector_transform_edits.clear()
             self.renderer.select_node_path(node.path)
+            self._hierarchy_auto_expand_paths = self._ancestor_paths(node.path)
 
         if opened:
             for index, child in enumerate(node.children):
                 self._draw_node_tree(child, f"{node_key}-{index}")
             imgui.tree_pop()
 
+    def _ancestor_paths(self, path: str) -> set[str]:
+        parts = path.split("/")
+        return {"/".join(parts[:index]) for index in range(2, len(parts))}
+
     def show_inspector(self) -> None:
         node = self.renderer.node_snapshot(self.selected_node_path)
         if node is None:
             imgui.text_unformatted("Select a node from Hierarchy.")
             return
 
-        imgui.text(f"Path: {node.path}")
+        imgui.text_unformatted(node.name)
-        imgui.text(f"Children: {len(node.children)}")
+        imgui.text_colored((0.58, 0.62, 0.68, 1.0), node.path)
-        imgui.separator()
+        imgui.spacing()
-        imgui.text("Transform")
-        imgui.bullet_text(f"Position: ({node.pos[0]:.2f}, {node.pos[1]:.2f}, {node.pos[2]:.2f})")
-        imgui.bullet_text(f"Rotation: ({node.hpr[0]:.2f}, {node.hpr[1]:.2f}, {node.hpr[2]:.2f})")
-        imgui.bullet_text(f"Scale: ({node.scale[0]:.2f}, {node.scale[1]:.2f}, {node.scale[2]:.2f})")
 
-        camera = self.renderer.camera_state()
+        if imgui.collapsing_header("Transform", imgui.TreeNodeFlags_.default_open):
-        imgui.separator()
+            self._draw_transform_fields(node)
-        imgui.text("Camera")
-        imgui.bullet_text(f"Target: ({camera.target_x:.2f}, {camera.target_y:.2f}, {camera.target_z:.2f})")
-        imgui.bullet_text(f"Distance: {camera.distance:.2f}")
-        imgui.bullet_text(f"Heading: {camera.heading_deg:.2f}")
-        imgui.bullet_text(f"Pitch: {camera.pitch_deg:.2f}")
 
-    def show_stats(self) -> None:
+        if imgui.collapsing_header("Node Info", imgui.TreeNodeFlags_.default_open):
-        ready, size, fps, last_error, _ = self.renderer.snapshot()
+            self._draw_readonly_property("Children", str(len(node.children)))
-        frame_shape = self.viewport_frame_shape
+
-        imgui.text(f"Renderer ready: {ready}")
+    def _draw_transform_fields(self, node) -> None:
-        if frame_shape is not None:
+        table_flags = (
-            imgui.text(f"Frame shape: {frame_shape[1]} x {frame_shape[0]} x {frame_shape[2]}")
+            imgui.TableFlags_.sizing_stretch_prop
-        else:
+            | imgui.TableFlags_.borders_inner_v
-            imgui.text("Frame shape: n/a")
+            | imgui.TableFlags_.pad_outer_x
-        imgui.text(f"Requested size: {size[0]} x {size[1]}")
-        imgui.text(f"Panda worker FPS: {fps:.1f}")
-        _, self.render_scale = imgui.slider_float("Render Scale", self.render_scale, 0.4, 1.0, "%.2f")
-        imgui.separator()
-        imgui.text_wrapped(
-            "The original black screen came from rendering Panda3D inside the same "
-            "OpenGL GUI frame used by Hello ImGui. This version moves Panda3D rendering "
-            "to a worker thread, runs simplepbr on the offscreen buffer, uploads only "
-            "the latest RGBA frame to a GlTexture, and renders the viewport with a raw "
-            "ImGui draw list instead of ImmVision."
         )
+        if not imgui.begin_table("InspectorTransformTable", 2, table_flags):
+            return
+
+        imgui.table_setup_column("Property", imgui.TableColumnFlags_.width_fixed, 72.0)
+        imgui.table_setup_column("Value", imgui.TableColumnFlags_.width_stretch)
+        self._draw_transform_row("Position", "pos", node.pos, "%.3f")
+        self._draw_transform_row("Rotation", "hpr", node.hpr, "%.2f")
+        self._draw_transform_row("Scale", "scale", node.scale, "%.3f")
+        imgui.end_table()
+
+    def _draw_transform_row(
+        self,
+        label: str,
+        field: str,
+        value: tuple[float, float, float],
+        value_format: str,
+    ) -> None:
+        imgui.table_next_row()
+        imgui.table_set_column_index(0)
+        imgui.align_text_to_frame_padding()
+        imgui.text_unformatted(label)
+        imgui.table_set_column_index(1)
+        edit_key = (self.selected_node_path, field)
+        current_value = self._inspector_transform_edits.get(edit_key, value)
+        changed, value_tuple, active = self._draw_axis_float_inputs(field, current_value, value_format)
+        if changed:
+            self._inspector_transform_edits[edit_key] = value_tuple
+            self.renderer.queue_input_event(
+                "set_transform",
+                path=self.selected_node_path,
+                field=field,
+                value=value_tuple,
+            )
+        if not active:
+            self._inspector_transform_edits.pop(edit_key, None)
+
+    def _draw_axis_float_inputs(
+        self,
+        field: str,
+        value: tuple[float, float, float],
+        value_format: str,
+    ) -> tuple[bool, tuple[float, float, float], bool]:
+        axis_specs = (
+            ("X", (0.94, 0.30, 0.28, 1.0)),
+            ("Y", (0.32, 0.78, 0.36, 1.0)),
+            ("Z", (0.32, 0.52, 1.0, 1.0)),
+        )
+        available_width = max(imgui.get_content_region_avail().x, 120.0)
+        label_width = 14.0
+        spacing = 6.0
+        input_width = max((available_width - (label_width + spacing) * 3.0) / 3.0, 44.0)
+        values = [float(component) for component in value]
+        changed = False
+        active = False
+
+        imgui.push_style_var(imgui.StyleVar_.item_spacing, imgui.ImVec2(spacing, 0.0))
+        try:
+            for index, (axis, color) in enumerate(axis_specs):
+                if index > 0:
+                    imgui.same_line()
+                imgui.text_colored(color, axis)
+                imgui.same_line()
+                imgui.set_next_item_width(input_width)
+                axis_changed, axis_value = imgui.input_float(
+                    f"##{field}_{axis}",
+                    values[index],
+                    0.0,
+                    0.0,
+                    value_format,
+                )
+                if axis_changed:
+                    values[index] = float(axis_value)
+                    changed = True
+                active = active or imgui.is_item_active()
+        finally:
+            imgui.pop_style_var()
+
+        return changed, (values[0], values[1], values[2]), active
+
+    def _draw_readonly_property(self, label: str, value: str) -> None:
+        if imgui.begin_table(f"InspectorReadonly{label}", 2, imgui.TableFlags_.sizing_stretch_prop):
+            imgui.table_setup_column("Property", imgui.TableColumnFlags_.width_fixed, 72.0)
+            imgui.table_setup_column("Value", imgui.TableColumnFlags_.width_stretch)
+            imgui.table_next_row()
+            imgui.table_set_column_index(0)
+            imgui.text_colored((0.68, 0.72, 0.78, 1.0), label)
+            imgui.table_set_column_index(1)
+            imgui.text_unformatted(value)
+            imgui.end_table()
+
+    def show_console(self) -> None:
+        _, _, _, last_error, _ = self.renderer.snapshot()
+        entries = list(self._console_entries)
         if last_error:
-            imgui.separator()
+            entries.append(("Error", last_error, "Renderer"))
-            imgui.text_colored((1.0, 0.4, 0.4, 1.0), last_error)
+        visible_entries = self._filtered_console_entries(entries)
+        if self._console_collapse:
+            visible_entries = self._collapsed_console_entries(visible_entries)
+
+        if imgui.button("Clear"):
+            self._console_entries.clear()
+        imgui.same_line()
+        if imgui.button("Copy All"):
+            imgui.set_clipboard_text("\n".join(self._format_console_entry(entry) for entry in visible_entries))
+        imgui.same_line()
+        _, self._console_collapse = imgui.checkbox("Collapse", self._console_collapse)
+        imgui.same_line()
+        _, self._console_show_info = imgui.checkbox(
+            f"Log ({self._console_count('Info')})",
+            self._console_show_info,
+        )
+        imgui.same_line()
+        _, self._console_show_warnings = imgui.checkbox(
+            f"Warning ({self._console_count('Warning')})",
+            self._console_show_warnings,
+        )
+        imgui.same_line()
+        _, self._console_show_errors = imgui.checkbox(
+            f"Error ({self._console_count('Error') + (1 if last_error else 0)})",
+            self._console_show_errors,
+        )
+
+        imgui.separator()
+        if imgui.begin_child("ConsoleLogList", (0.0, 0.0), imgui.ChildFlags_.borders):
+            console_text = "\n".join(self._format_console_entry(entry) for entry in visible_entries)
+            available = imgui.get_content_region_avail()
+            imgui.input_text_multiline(
+                "##ConsoleSelectableText",
+                console_text,
+                (available.x, available.y),
+                imgui.InputTextFlags_.read_only,
+            )
+        imgui.end_child()
+
+    def _console_count(self, level: str) -> int:
+        return sum(1 for entry_level, _, _ in self._console_entries if entry_level == level)
+
+    def _filtered_console_entries(self, entries: list[tuple[str, str, str]]) -> list[tuple[str, str, str]]:
+        return [
+            entry
+            for entry in entries
+            if (
+                (entry[0] == "Info" and self._console_show_info)
+                or (entry[0] == "Warning" and self._console_show_warnings)
+                or (entry[0] == "Error" and self._console_show_errors)
+            )
+        ]
+
+    def _collapsed_console_entries(self, entries: list[tuple[str, str, str]]) -> list[tuple[str, str, str]]:
+        counts: dict[tuple[str, str, str], int] = {}
+        ordered_entries: list[tuple[str, str, str]] = []
+        for entry in entries:
+            if entry not in counts:
+                ordered_entries.append(entry)
+                counts[entry] = 0
+            counts[entry] += 1
+        return [
+            (level, f"{message}  ({counts[entry]})" if counts[entry] > 1 else message, source)
+            for entry in ordered_entries
+            for level, message, source in [entry]
+        ]
+
+    def _format_console_entry(self, entry: tuple[str, str, str]) -> str:
+        level, message, source = entry
+        return f"[{level}] [{source}] {message}"

src/impanda3d/renderer.py

@@ -23,7 +23,8 @@ from panda3d.core import (
 from .config import apply_panda_runtime_config
 from .scene import build_preview_scene
 from .types import CameraState, SceneNodeSnapshot
-from src.TransformGizmo.transform_gizmo import TransformGizmo, TransformGizmoMode
+from src.transform_gizmo.transform_gizmo import TransformGizmo, TransformGizmoMode
+from src.camera_view_gizmo import CameraViewGizmo, CameraViewGizmoConfig
 from src.tools.camera_orbit_controller import CameraOrbitController
 from src.tools.picker_ray import PickerRay
 
@@ -121,6 +122,7 @@ class PandaRendererThread(threading.Thread):
         base: ShowBase | None = None
         camera_controller: CameraOrbitController | None = None
         transform_gizmo: TransformGizmo | None = None
+        camera_view_gizmo: CameraViewGizmo | None = None
         picker_ray: PickerRay | None = None
         previous_task_signal = PandaTaskModule.signal
         try:
@@ -168,10 +170,10 @@ class PandaRendererThread(threading.Thread):
                 use_emission_maps=True,
                 use_occlusion_maps=True,
                 enable_shadows=False,
-                exposure=0.35,
+                exposure=0.15,
             )
 
-            scene_root = build_preview_scene(base)
+            scene_root = build_preview_scene(base, camera_np)
             scene_root.set_python_tag("scene_path", scene_root.get_name())
             self._update_scene_snapshot(scene_root)
             camera_controller = CameraOrbitController(
@@ -193,6 +195,16 @@ class PandaRendererThread(threading.Thread):
             self._sync_camera_snapshot(camera_controller)
             transform_gizmo = TransformGizmo(base, camera_np=camera_np, use_overlay=False)
             transform_gizmo.set_mode(TransformGizmoMode.MOVE)
+            camera_view_gizmo = CameraViewGizmo(
+                base,
+                camera_np=camera_np,
+                window=buffer,
+                get_pivot=camera_controller.get_pivot,
+                on_camera_changed=lambda _gizmo: camera_controller.sync_from_camera(camera_controller.get_pivot()),
+                interaction_blocker=lambda: False,
+                register_events=False,
+                config=CameraViewGizmoConfig(size_px=132, overlay_sort=20),
+            )
             picker_ray = PickerRay(base, pick_root=scene_root, camera=camera_np)
             self._attach_gizmo_to_selected(transform_gizmo)
 
@@ -218,7 +230,7 @@ class PandaRendererThread(threading.Thread):
                 last_time = now
                 smoothed_dt = smoothed_dt * 0.9 + dt * 0.1
 
-                self._drain_input_events(camera_controller, transform_gizmo, picker_ray)
+                self._drain_input_events(camera_controller, transform_gizmo, camera_view_gizmo, picker_ray)
                 base.taskMgr.step()
                 self._sync_camera_snapshot(camera_controller)
 
@@ -260,6 +272,11 @@ class PandaRendererThread(threading.Thread):
                     transform_gizmo.detach()
                 except Exception:
                     pass
+            if camera_view_gizmo is not None:
+                try:
+                    camera_view_gizmo.destroy()
+                except Exception:
+                    pass
             if base is not None:
                 try:
                     base.destroy()
@@ -270,6 +287,7 @@ class PandaRendererThread(threading.Thread):
         self,
         camera_controller: CameraOrbitController,
         transform_gizmo: TransformGizmo | None,
+        camera_view_gizmo: CameraViewGizmo | None,
         picker_ray: PickerRay | None,
     ) -> None:
         while True:
@@ -305,6 +323,19 @@ class PandaRendererThread(threading.Thread):
                 x = payload.get("x")
                 y = payload.get("y")
                 ndc = self._event_ndc(payload)
+                if x is not None and y is not None and camera_view_gizmo is not None:
+                    if button == "lmb" and down:
+                        camera_view_gizmo.handle_mouse1_down(float(x), float(y))
+                    elif button == "lmb" and not down:
+                        camera_view_gizmo.handle_mouse1_up(float(x), float(y))
+                view_gizmo_captures_left = (
+                    camera_view_gizmo is not None
+                    and button == "lmb"
+                    and camera_view_gizmo.captures_mouse
+                )
+                if view_gizmo_captures_left:
+                    camera_controller.set_button(button, False)
+                    continue
                 event_payload = {"x": ndc[0], "y": ndc[1], "ndc": True} if ndc is not None else None
                 if transform_gizmo is not None:
                     if button == "lmb" and down:
@@ -336,10 +367,18 @@ class PandaRendererThread(threading.Thread):
             elif kind == "mouse_move":
                 x = payload.get("x")
                 y = payload.get("y")
-                if x is not None and y is not None and not (transform_gizmo is not None and transform_gizmo.is_dragging):
+                if x is not None and y is not None and camera_view_gizmo is not None:
+                    camera_view_gizmo.handle_mouse_move(float(x), float(y))
+                view_gizmo_captures = camera_view_gizmo is not None and camera_view_gizmo.captures_mouse
+                if (
+                    x is not None
+                    and y is not None
+                    and not view_gizmo_captures
+                    and not (transform_gizmo is not None and transform_gizmo.is_dragging)
+                ):
                     camera_controller.move_pointer(float(x), float(y))
                 ndc = self._event_ndc(payload)
-                if transform_gizmo is not None and ndc is not None:
+                if transform_gizmo is not None and ndc is not None and not view_gizmo_captures:
                     transform_gizmo.world.messenger.send("mouse-move", [{"x": ndc[0], "y": ndc[1], "ndc": True}])
             elif kind == "wheel":
                 delta = float(payload.get("delta", 0.0))
@@ -352,6 +391,16 @@ class PandaRendererThread(threading.Thread):
                 camera_controller.set_key(key, bool(payload.get("down", False)))
             elif kind == "focus":
                 camera_controller.focus_on_current_target()
+            elif kind == "undo_transform":
+                if transform_gizmo is not None:
+                    transform_gizmo.undo_last()
+            elif kind == "set_transform":
+                path = str(payload.get("path", ""))
+                field = str(payload.get("field", ""))
+                value = payload.get("value")
+                self._set_node_transform(path, field, value)
+                if transform_gizmo is not None:
+                    self._attach_gizmo_to_selected(transform_gizmo)
             elif kind == "select_path":
                 path = str(payload.get("path", ""))
                 self._set_selected_node_path(path)
@@ -416,6 +465,22 @@ class PandaRendererThread(threading.Thread):
         with self._state_lock:
             self._selected_node_path = path
 
+    def _set_node_transform(self, path: str, field: str, value: object) -> None:
+        node = self._node_path_lookup.get(path)
+        if node is None or value is None:
+            return
+        try:
+            x, y, z = (float(component) for component in value)  # type: ignore[operator]
+        except (TypeError, ValueError):
+            return
+
+        if field == "pos":
+            node.set_pos(x, y, z)
+        elif field == "hpr":
+            node.set_hpr(x, y, z)
+        elif field == "scale":
+            node.set_scale(x, y, z)
+
     def _sync_camera_snapshot(self, camera_controller: CameraOrbitController) -> None:
         target_x, target_y, target_z, distance, yaw, pitch = camera_controller.camera_state_tuple()
         with self._state_lock:

src/impanda3d/scene.py

@@ -7,45 +7,47 @@ from panda3d.core import (
     AmbientLight,
     DirectionalLight,
     Material,
-    PointLight,
     Vec3,
+    NodePath
 )
 
 from .types import CameraState
 
 
-def build_preview_scene(base: ShowBase):
+def _setup_editor_lighting(base: ShowBase, camera_np:NodePath) -> None:
+    ambient = AmbientLight("editorAmbient")
+    ambient.set_color((0.28, 0.30, 0.33, 1.0))
+    base.render.set_light(base.render.attachNewNode(ambient))
+
+    head_light = DirectionalLight("editorHeadLight")
+    head_light.set_color((0.72, 0.75, 0.80, 1.0))
+    head_np = camera_np.attachNewNode(head_light)
+    base.render.set_light(head_np)
+
+    key_light = DirectionalLight("editorKeyLight")
+    key_light.set_color((0.62, 0.60, 0.54, 1.0))
+    key_np = base.render.attachNewNode(key_light)
+    key_np.set_hpr(-35.0, -45.0, 0.0)
+    base.render.set_light(key_np)
+
+    fill_light = DirectionalLight("editorFillLight")
+    fill_light.set_color((0.34, 0.39, 0.47, 1.0))
+    fill_np = base.render.attachNewNode(fill_light)
+    fill_np.set_hpr(130.0, -20.0, 0.0)
+    base.render.set_light(fill_np)
+
+    rim_light = DirectionalLight("editorRimLight")
+    rim_light.set_color((0.28, 0.30, 0.34, 1.0))
+    rim_np = base.render.attachNewNode(rim_light)
+    rim_np.set_hpr(180.0, -10.0, 0.0)
+    base.render.set_light(rim_np)
+
+
+def build_preview_scene(base: ShowBase, camera_np):
     base.render.set_shader_auto()
     base.setBackgroundColor(0.16, 0.17, 0.19, 1.0)
     base.disableMouse()
-
+    _setup_editor_lighting(base, camera_np)
-    ambient = AmbientLight("ambient")
-    ambient.set_color((0.10, 0.10, 0.11, 1.0))
-    base.render.set_light(base.render.attachNewNode(ambient))
-
-    key_light = DirectionalLight("keyLight")
-    key_light.set_color((1.45, 1.40, 1.30, 1.0))
-    key_np = base.render.attachNewNode(key_light)
-    key_np.set_hpr(-38.0, -34.0, 0.0)
-    base.render.set_light(key_np)
-
-    fill_light = DirectionalLight("fillLight")
-    fill_light.set_color((0.38, 0.44, 0.52, 1.0))
-    fill_np = base.render.attachNewNode(fill_light)
-    fill_np.set_hpr(118.0, -18.0, 0.0)
-    base.render.set_light(fill_np)
-
-    rim_light = DirectionalLight("rimLight")
-    rim_light.set_color((0.30, 0.28, 0.26, 1.0))
-    rim_np = base.render.attachNewNode(rim_light)
-    rim_np.set_hpr(180.0, -8.0, 0.0)
-    base.render.set_light(rim_np)
-
-    bounce_light = PointLight("bounceLight")
-    bounce_light.set_color((0.22, 0.24, 0.28, 1.0))
-    bounce_np = base.render.attachNewNode(bounce_light)
-    bounce_np.set_pos(0.0, -1.5, 4.0)
-    base.render.set_light(bounce_np)
 
     scene_root = base.render.attachNewNode("SceneRoot")
     preview_root = scene_root.attachNewNode("PreviewRoot")