Skip to content

Slightly nudge down the multiplier used for float->u8 conversion in fragment shaders #19364

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
hrydgard merged 1 commit into from
Jul 22, 2024
Merged

Slightly nudge down the multiplier used for float->u8 conversion in fragment shaders #19364

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion GPU/Common/FragmentShaderGenerator.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -469,7 +469,7 @@ bool GenerateFragmentShader(const FShaderID &id, char *buffer, const ShaderLangu
}
if (enableColorTest && !colorTestAgainstZero) {
if (compat.bitwiseOps) {
WRITE(p, "uint roundAndScaleTo8x4(in vec3 x) { uvec3 u = uvec3(floor(x * 255.99)); return u.r | (u.g << 0x8u) | (u.b << 0x10u); }\n");
WRITE(p, "uint roundAndScaleTo8x4(in vec3 x) { uvec3 u = uvec3(floor(x * 255.92)); return u.r | (u.g << 0x8u) | (u.b << 0x10u); }\n");
WRITE(p, "uint packFloatsTo8x4(in vec3 x) { uvec3 u = uvec3(x); return u.r | (u.g << 0x8u) | (u.b << 0x10u); }\n");
} else if (gl_extensions.gpuVendor == GPU_VENDOR_IMGTEC) {
WRITE(p, "vec3 roundTo255thv(in vec3 x) { vec3 y = x + (0.5/255.0); return y - fract(y * 255.0) * (1.0 / 255.0); }\n");
Expand Down