Sergey Sharybin ed5dbb0a7b Cycles: Implement extrapolation for RGB curves ... Previously RGB Curves node will clamp input to 0..1 which is rather useless when one wants to use HDR image textures and do bit of correction on them. Now kernel code supports extrapolation of baked LUT based on first/last two table points and performs linear extrapolation. The only tricky part is to guess the range to bake the LUT for. Currently it's using simple approach -- minmax of the input curves. While this behaves ok for the simple cases it's easy to trick the system up causing incorrect results. Not sure we can solve those issues in a general case and since the new code is giving more expected results it's not that bad actually. In the worst case artist migh always create explicit point to make sure LUT is created for the needed HDR range. Reviewers: brecht, juicyfruit Subscribers: sebastian_k Differential Revision: https://developer.blender.org/D1658		2015-12-06 01:21:14 +05:00
..
app
blender	Cycles: Implement extrapolation for RGB curves	2015-12-06 01:21:14 +05:00
bvh
cmake
device
doc
kernel	Cycles: Implement extrapolation for RGB curves	2015-12-06 01:21:14 +05:00
render	Cycles: Implement extrapolation for RGB curves	2015-12-06 01:21:14 +05:00
subd
util	Cycles: Avoid recursion when doing constant fold	2015-12-02 16:19:39 +05:00
CMakeLists.txt
SConscript