![]() ![]() ![]() Since “cubes” is not an image format Photoshop’s familiar with, we have to settle for something like an unwrapped version of said cube. Therefore, it was a cool thing to go into.īefore I show some code, let me first give a quick explanation of how LUTs work: The whole idea is that we map the scene’s color to a new color based on a color-cube. I had to implement a custom image effect for that in our VR game, PaulPaul, as the post-processing stack’s didn’t work since we were using single-pass stereo rendering. ![]() I was having trouble for a while coming up with an interesting enough shader topic for this blog post, and then Ronja (whose tutorials you should absolutely check out btw) suggested a neat thing with which I had some experience: Color grading with Look-up textures (hereafter mentioned as LUTs).
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