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Preserve vertex export locations for mixed pixel interpolation

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nmzik committed 2026-10-08 22:05:53 +04:00
1 parent b65dc12208
commit b38b7454a6
7 files changed
+100 -10
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src/graphics/shader/shaderPixelParameter.cpp
+4 -2
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@@ -30,6 +30,9 @@ uint32_t ShaderPixelParameterMappedLocation(const ShaderPixelInputInfo& info, ui
uint32_t ShaderPixelParameterLocation(const ShaderPixelInputInfo& info,
std::span<const uint32_t> active_inputs, uint32_t input) {
if (info.parameter_mode != ShaderPixelParameterMode::Rectangle) {
return ShaderPixelParameterMappedLocation(info, input);
}
std::array<bool, 32> used_locations {};
for (const auto active_input: active_inputs) {
used_locations[ShaderPixelParameterMappedLocation(info, active_input)] = true;
@@ -42,8 +45,7 @@ uint32_t ShaderPixelParameterLocation(const ShaderPixelInputInfo& info,
auto& location = group_locations[group];
if (location == UINT32_MAX) {
location = mapped;
// Smooth and custom interpolation read the same vertex output. Only
// differing flat/smooth rectangle outputs need separate locations.
// Rectangle expansion broadcasts flat aliases through separate outputs.
if (group_locations[group ^ 1u] != UINT32_MAX) {
location = 0;
while (location < used_locations.size() && used_locations[location]) {