102 lines
3.7 KiB
Python
102 lines
3.7 KiB
Python
"""
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RenderPipeline
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Copyright (c) 2014-2016 tobspr <tobias.springer1@gmail.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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"""
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from __future__ import division
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from panda3d.core import ComputeNode, Vec4, Vec3
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from direct.gui.DirectFrame import DirectFrame
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from rpcore.gui.sprite import Sprite
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from rpcore.gui.text import Text
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from rpcore.rpobject import RPObject
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from rpcore.image import Image
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from rpcore.globals import Globals
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from rpcore.loader import RPLoader
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class ExposureWidget(RPObject):
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""" Widget to show the current exposure """
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def __init__(self, pipeline, parent):
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""" Inits the widget """
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RPObject.__init__(self)
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self._pipeline = pipeline
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self._parent = parent
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self._node = self._parent.attach_new_node("ExposureWidgetNode")
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self._create_components()
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def _create_components(self):
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""" Internal method to init the widgets components """
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self._node.hide()
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# Create the texture where the gui component is rendered inside
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self._storage_tex = Image.create_2d("ExposureDisplay", 140, 20, "RGBA8")
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self._storage_tex.set_clear_color(Vec4(0.2, 0.6, 1.0, 1.0))
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self._storage_tex.clear_image()
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self._bg_frame = DirectFrame(
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parent=self._node, frameColor=(0.1, 0.1, 0.1, 1.0),
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frameSize=(200, 0, -10, -85), pos=(0, 0, 0))
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self._display_img = Sprite(
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image=self._storage_tex, parent=self._node, w=140, h=20, x=20, y=50)
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self._display_txt = Text(
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text="Current Exposure".upper(), parent=self._node, x=160, y=40,
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size=13, color=Vec3(0.8), align="right")
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# Create the shader which generates the visualization texture
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self._cshader_node = ComputeNode("ExposureWidget")
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self._cshader_node.add_dispatch(140 // 10, 20 // 4, 1)
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self._cshader_np = self._node.attach_new_node(self._cshader_node)
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# Defer the further loading
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Globals.base.taskMgr.doMethodLater(1.0, self._late_init, "ExposureLateInit")
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def _late_init(self, task):
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""" Gets called after the pipeline initialized, this extracts the
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exposure texture from the stage manager """
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stage_mgr = self._pipeline.stage_mgr
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if "Exposure" not in stage_mgr.pipes:
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self.debug("Disabling exposure widget, could not find the exposure data.")
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self._node.remove_node()
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return
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self._node.show()
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exposure_tex = stage_mgr.pipes["Exposure"]
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self._cshader = RPLoader.load_shader("/$$rp/shader/visualize_exposure.compute.glsl")
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self._cshader_np.set_shader(self._cshader)
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self._cshader_np.set_shader_inputs(
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DestTex=self._storage_tex,
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ExposureTex=exposure_tex)
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return task.done
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