mirror of
https://git.suyu.dev/suyu/suyu
synced 2025-03-20 22:25:47 -05:00

During testing, it was discovered that hardware does not interpolate colors output by the vertex shader as-is. Rather, it drops the sign and saturates the value to 1.0. This is done before interpolation, such that (e.g.) interpolating outputs 1.5 and -0.5 is equivalent to as if the shader had output the values 1.0 and 0.5 instead, with the interpolated value never crossing 0.0. This change has been tested against hardware.