59 lines
1.5 KiB
Python
59 lines
1.5 KiB
Python
"""
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Base class for integrating USD Hydra based renderers.
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USD Hydra Based Renderer
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++++++++++++++++++++++++
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"""
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import bpy
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class CustomHydraRenderEngine(bpy.types.HydraRenderEngine):
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# Identifier and name in the user interface.
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bl_idname = "CUSTOM_HYDRA_RENDERER"
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bl_label = "Custom Hydra Renderer"
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# Name of the render plugin.
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bl_delegate_id = "HdCustomRendererPlugin"
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# Use MaterialX instead of UsdPreviewSurface for materials.
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bl_use_materialx = True
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# Register path to plugin.
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@classmethod
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def register(cls):
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import pxr.Plug
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pxr.Plug.Registry().RegisterPlugins(['/path/to/plugin'])
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# Render settings that will be passed to the delegate.
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def get_render_settings(self, engine_type):
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return {
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'myBoolean': True,
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'myValue': 8,
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'aovToken:Depth': "depth",
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}
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# RenderEngine methods for update, render and draw are implemented in
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# HydraRenderEngine. Optionally extra work can be done before or after
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# by implementing the methods like this.
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def update(self, data, depsgraph):
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super().update(data, depsgraph)
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# Do extra work here
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def update_render_passes(self, scene, render_layer):
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if render_layer.use_pass_z:
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self.register_pass(scene, render_layer, 'Depth', 1, 'Z', 'VALUE')
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# Registration
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def register():
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bpy.utils.register_class(CustomHydraRenderEngine)
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def unregister():
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bpy.utils.unregister_class(CustomHydraRenderEngine)
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if __name__ == "__main__":
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register()
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