From 93b06ba2da7780bf257de01bde0e820de7c5e9e8 Mon Sep 17 00:00:00 2001
From: TheTurtle <geoster3d@gmail.com>
Date: Wed, 23 Jul 2025 23:27:11 +0300
Subject: [PATCH] translate: Correct instance id fetch in local shader (#3309)

---
 src/shader_recompiler/frontend/translate/translate.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/shader_recompiler/frontend/translate/translate.cpp b/src/shader_recompiler/frontend/translate/translate.cpp
index 21b0ffb52..39ca3eaa7 100644
--- a/src/shader_recompiler/frontend/translate/translate.cpp
+++ b/src/shader_recompiler/frontend/translate/translate.cpp
@@ -92,8 +92,12 @@ void Translator::EmitPrologue(IR::Block* first_block) {
             if (runtime_info.num_input_vgprs > 0) {
                 ir.SetVectorReg(dst_vreg++, ir.Imm32(0));
             }
-            // v2: instance ID
+            // v2: unknown
             if (runtime_info.num_input_vgprs > 1) {
+                ++dst_vreg;
+            }
+            // v3: instance ID, plain
+            if (runtime_info.num_input_vgprs > 2) {
                 ir.SetVectorReg(dst_vreg++, ir.GetAttributeU32(IR::Attribute::InstanceId));
             }
         } else {