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I have further questions. Is there a way in Vizard to retrieve a normal buffer? I can get a depth buffer for post-process effects (vizpp_InputDepthTex), but what I need is a texture with the object's/fragment's normals.
How do I do that? Another question: The help states that the osg_ViewMatrix is available to all shaders used with vizard. Can someone please tell me, how I would get the current view position and the view direction from that matrix? Thanks! |
Tags |
glsl, rendering, shader, shading |
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