[spir-v, emit] Flat Decoration Adjustment

4 weeks ago · 0d92c21ca7
1 changed files with 3 additions and 1 deletions
--- a/src/shader_recompiler/backend/spirv/spirv_emit_context.cpp
+++ b/src/shader_recompiler/backend/spirv/spirv_emit_context.cpp
@ -1463,7 +1463,9 @@ void EmitContext::DefineInputs(const IR::Program& program) {
        AddCapability(spv::Capability::GroupNonUniform);
        subgroup_local_invocation_id =
            DefineInput(*this, U32[1], false, spv::BuiltIn::SubgroupLocalInvocationId);
-        Decorate(subgroup_local_invocation_id, spv::Decoration::Flat);
+        if (stage == Stage::Fragment) {
+            Decorate(subgroup_local_invocation_id, spv::Decoration::Flat);
+        }
    }
    if (info.uses_fswzadd) {
        const Id f32_one{Const(1.0f)};