109 lines
4.0 KiB
Python
109 lines
4.0 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 panda3d.core import SamplerState
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from rpcore.globals import Globals
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from rpcore.loader import RPLoader
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from rpcore.pluginbase.base_plugin import BasePlugin
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from .smaa_stage import SMAAStage
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from .jitters import JITTERS
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class Plugin(BasePlugin):
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name = "SMAA (Antialiasing)"
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author = "tobspr <tobias.springer1@gmail.com>"
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description = ("This plugin adds support for SMAA, a post process "
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"antialiasing technique.")
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version = "1.5"
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def on_stage_setup(self):
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if self.get_setting("use_reprojection"):
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self._compute_jitters()
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self._smaa_stage = self.create_stage(SMAAStage)
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self._smaa_stage.use_reprojection = self.get_setting("use_reprojection")
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self._load_textures()
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def on_pre_render_update(self):
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# Apply jitter for temporal aa
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if self.get_setting("use_reprojection"):
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jitter_scale = self.get_setting("jitter_amount")
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jitter = self._jitters[self._jitter_index]
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jitter = jitter[0] * jitter_scale, jitter[1] * jitter_scale
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Globals.base.camLens.set_film_offset(jitter)
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self._smaa_stage.set_jitter_index(self._jitter_index)
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# Increase jitter index
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self._jitter_index += 1
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if self._jitter_index >= len(self._jitters):
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self._jitter_index = 0
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def _compute_jitters(self):
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""" Internal method to compute the SMAA sub-pixel frame offsets """
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self._jitters = []
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self._jitter_index = 0
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scale = 1.0 / float(Globals.native_resolution.x)
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# Reduce jittering to 35% to avoid flickering
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scale *= 0.35
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for x, y in JITTERS[self.get_setting("jitter_pattern")]:
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jitter_x = (x * 2 - 1) * scale * 0.5
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jitter_y = (y * 2 - 1) * scale * 0.5
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self._jitters.append((jitter_x, jitter_y))
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@property
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def history_length(self):
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if self.get_setting("use_reprojection"):
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return len(self._jitters)
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return 1
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def update_jitter_pattern(self):
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""" Updates the jitter pattern when the setting was changed """
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self._compute_jitters()
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def on_window_resized(self):
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""" Updates the jitter pattern when the window size was changed """
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self._compute_jitters()
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def _load_textures(self):
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""" Loads all required textures """
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search_tex = RPLoader.load_texture(self.get_resource("search_tex.png"))
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area_tex = RPLoader.load_texture(self.get_resource("area_tex.png"))
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for tex in [search_tex, area_tex]:
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tex.set_minfilter(SamplerState.FT_linear)
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tex.set_magfilter(SamplerState.FT_linear)
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tex.set_wrap_u(SamplerState.WM_clamp)
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tex.set_wrap_v(SamplerState.WM_clamp)
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self._smaa_stage.area_tex = area_tex
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self._smaa_stage.search_tex = search_tex
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