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First experimental version in svn revs 10870 / 17122. |
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Some basic fixes: r10874 Fixed accidentally broken volumetric lights. r10872 Fixed accidentally broken image-based lighting in ambient interaction. r10889 Clean interaction thoroughly after drawing it. Without this, I got self-shadowing along sloped surfaces of parallax-mapped walls: r10875 Fixed shadow acne with shadow maps in case surface has highly-skewed normal map. Before this, one could see how self-shadow moves along the surface as camera moves: r10876 Now parallax effect properly modifies "to-light" and "to_view" vectors. With this, the shadow does not visibly moves. This feature requires scale between 3D and texcoord spaces, and I got it using dFdx/dFdy.... The better solution would be to pass it in vertex attributes, but changing vertex format is not a joke =) This fixed some nasty artefacts on AMD + greatly accelerated parallax computations: r10880 Disabled all filtering for parallax computations. r10882 Sample textures for shadowing purposes with same LOD level as for parallax. Custom LOD level for sampling diffuse/bump/etx. texture is needed to avoid artefacts along silhouettes with low anisotropy: r10883 Refactor shaders: sample textures outside common functions. r10884 Use gradients of original texcoords when sampling material textures on parallaxed surfaces. This optional feature allows external shadows to fall nicely onto parallax surface (otherwise it look as it falls onto plane/mesh): r10885 Support offsetExternalShadows flag in parallax material. |
- Anonymous
