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Fix for stereo with textureProj (emulated projection).

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Henrik Rydgård 2022-10-26 13:40:13 +02:00
parent 7d5bb79257
commit 931c869ca9
1 changed files with 4 additions and 1 deletions
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5
GPU/Common/FragmentShaderGenerator.cpp
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@ -663,7 +663,10 @@ bool GenerateFragmentShader(const FShaderID &id, char *buffer, const ShaderLangu
// Used for stereo rendering.
const char *arrayIndex = useStereo ? "float(gl_ViewIndex)" : "0.0";
if (doTextureProjection) {
WRITE(p, " vec4 t = %sProj(tex, vec4(%s, %s));\n", compat.texture, texcoord, arrayIndex);
// There's no textureProj for array textures, so we need to emulate it.
// Should be fine on any Vulkan-compatible hardware.
WRITE(p, " vec2 uv_proj = (%s.xy) / (%s.z);\n", texcoord, texcoord);
WRITE(p, " vec4 t = %s(tex, vec3(uv_proj, %s));\n", compat.texture, texcoord, arrayIndex);
} else {
WRITE(p, " vec4 t = %s(tex, vec3(%s.xy, %s));\n", compat.texture, texcoord, arrayIndex);
}