3 Commits

Author	SHA1	Message	Date
Omar Emara	77a4bb02cc	Fix T100697: Curve nodes change colors at identity settings ... Shader and compositor curve nodes change their inputs even if they are at identity settings. That is because shader and compositor curve nodes evaluate their curve map texture samplers at the normalized input directly, disregarding the fact that the samplers are evaluated using linear interpolation. This causes the output to be slightly different that it should be. This patch remaps the evaluation parameters such that the texture sampler is evaluated at the center of the pixels. Differential Revision: https://developer.blender.org/D15811 Reviewed By: Clement Foucault	2022-09-09 13:03:53 +02:00
Omar Emara	6109ad6cce	Realtime Compositor: Add basic color nodes ... This patch implements the following nodes for the realtime compositor: - Alpha over node. - Bright contrast node. - Color balance node. - Color correction node. - Exposure node. - Gamma node. - Hue correct node. - Hue saturation value node. - Invert node. - Mix node. - Posterize node. - Time curve node. - Vector curve node. Differential Revision: https://developer.blender.org/D15228 Reviewed By: Clement Foucault	2022-08-10 09:58:44 +02:00
Omar Emara	bdfee6d831	EEVEE: Refactor curve nodes ... This patches rewrites the GPU shaders of curve nodes for easier future development. This is a non-functional change. The new code avoids code duplication by moving common code into BKE curve mapping functions. It also avoids ambiguous data embedding into the gradient vectors that are passed to vectors and reduces the size of uniforms uploaded to the shader by avoiding redundancies. This is needed in preparation for the viewport compositor, which will utilize and extend this implementation. Reviewed By: fclem Differential Revision: https://developer.blender.org/D14689	2022-05-06 13:33:23 +02:00