forked from bartvdbraak/blender
Brecht Van Lommel
7ad802cf3a
Cycles now uses the color space on the image datablock, and uses OpenColorIO to convert to scene linear as needed. Byte images do not take extra memory, they are compressed in scene linear + sRGB transfer function which in common cases is a no-op. Eevee and workbench were changed to work similar. Float images are stored as scene linear. Byte images are compressed as scene linear + sRGB and stored in a GL_SRGB8_ALPHA8 texture. From the GLSL shader side this means they are read as scene linear, simplifying the code and taking advantage of hardware support. Further, OpenGL image textures are now all stored with premultiplied alpha. Eevee texture sampling looks a little different now because interpolation happens premultiplied and in scene linear space. Overlays and grease pencil work in sRGB space so those now have an extra conversion to sRGB after reading from image textures. This is not particularly elegant but as long as engines use different conventions, one or the other needs to do conversion. This change breaks compatibility for cases where multiple image texture nodes were using the same image with different color space node settings. However it gives more predictable behavior for baking and texture painting if save, load and image editing operations have a single color space to handle. Differential Revision: https://developer.blender.org/D4807 |
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| .. | ||
| CMakeLists.txt | ||
| fallback_impl.cc | ||
| gpu_shader_display_transform_vertex.glsl | ||
| gpu_shader_display_transform.glsl | ||
| ocio_capi.cc | ||
| ocio_capi.h | ||
| ocio_impl_glsl.cc | ||
| ocio_impl.cc | ||
| ocio_impl.h | ||