From c701013425265261076933d6b32f3353f61944cd Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Thu, 12 Oct 2023 12:20:34 -0700
Subject: Add HitObject.GetWorldToObject. (#3273)

* Add HitObject.GetWorldToObject.

* fix.

---------

Co-authored-by: Yong He <yhe@nvidia.com>
---
 source/slang/hlsl.meta.slang | 32 +++++++++++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

(limited to 'source')

diff --git a/source/slang/hlsl.meta.slang b/source/slang/hlsl.meta.slang
index 0fc6fb2a9..1d5c68a0d 100644
--- a/source/slang/hlsl.meta.slang
+++ b/source/slang/hlsl.meta.slang
@@ -7821,7 +7821,7 @@ float4x3 WorldToObject4x3()
     __target_switch
     {
     case hlsl:  __intrinsic_asm "WorldToObject4x3";
-    case GL_EXT_ray_tracing: __intrinsic_asm "(gl_WorldToObject3x4EXT)";
+    case GL_EXT_ray_tracing: __intrinsic_asm "(gl_WorldToObjectEXT)";
     case GL_NV_ray_tracing:  __intrinsic_asm "(gl_WorldToObjectNV)";
     case spirv:
         return spirv_asm {
@@ -9451,6 +9451,36 @@ struct HitObject
         }
     }
 
+    [__requiresNVAPI]
+    [ForceInline]
+    __glsl_extension(GL_EXT_ray_tracing)
+    float4x3 GetWorldToObject()
+    {
+        __target_switch
+        {
+        case hlsl: __intrinsic_asm ".GetWorldToObject";
+        case glsl: __intrinsic_asm "hitObjectGetWorldToObjectNV($0)";
+        case spirv: return spirv_asm {
+                result:$$float4x3 = OpHitObjectGetWorldToObjectNV &this;
+            };
+        }
+    }
+
+    [__requiresNVAPI]
+    [ForceInline]
+    __glsl_extension(GL_EXT_ray_tracing)
+    float4x3 GetObjectToWorld()
+    {
+        __target_switch
+        {
+        case hlsl: __intrinsic_asm ".GetObjectToWorld";
+        case glsl: __intrinsic_asm "hitObjectGetObjectToWorldNV($0)";
+        case spirv: return spirv_asm {
+                result:$$float4x3 = OpHitObjectGetObjectToWorldNV &this;
+            };
+        }
+    }
+
         /// Returns the attributes of a hit. Valid if the hit object represents a hit or a miss.
     [ForceInline]
     attr_t GetAttributes<attr_t>()
-- 
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