leo60228
commented
1 year ago (Sorry for taking so long to get to this issue! I saw it a while ago, but I thought I'd already responded...) This shaderpack primarily targets modern Iris, but that fix looks reasonable. I'll include it in the next update assuming it doesn't cause issues on modern versions.
I am new to glsl programming. I think the problem is in this formula: https://github.com/leo60228/VanillAA-Shaders/blob/541845be6d5dc5051d9480c4f67d6d714e9da71a/shaders/gbuffers_textured.vsh#L38
my fix:
vec3 normal = normalize(gl_NormalMatrix * gl_Normal);