Fix vector comparison expression for HLSL. (#2270)

num3ric · web-flow · commit e9c48718e8af · 2026-03-04T20:27:24.000-05:00
Signed-off-by: Eric Renaud-Houde &lt;eric.renaud.houde@gmail.com&gt;
diff --git a/src/OpenColorIO/GpuShaderUtils.cpp b/src/OpenColorIO/GpuShaderUtils.cpp
@@ -482,7 +482,8 @@ std::string GpuShaderText::declareVarStr(const std::string & name, float v)
 std::string GpuShaderText::vectorCompareExpression(const std::string& lhs, const std::string& op, const std::string& rhs)
 {
     std::string ret = lhs + " " + op + " " + rhs;
-    if(m_lang == GPU_LANGUAGE_MSL_2_0)
+    // MSL and HLSL do not allow vector bool in if-conditions: wrap with any().
+    if(m_lang == GPU_LANGUAGE_MSL_2_0 || m_lang == GPU_LANGUAGE_HLSL_SM_5_0)
     {
         ret = "any( " + ret + " )";
     }

Original file line number	Diff line number	Diff line change
`@@ -482,7 +482,8 @@ std::string GpuShaderText::declareVarStr(const std::string & name, float v)`
`482`	`482`	`std::string GpuShaderText::vectorCompareExpression(const std::string& lhs, const std::string& op, const std::string& rhs)`
`483`	`483`	`{`
`484`	`484`	`std::string ret = lhs + " " + op + " " + rhs;`
`485`		`- if(m_lang == GPU_LANGUAGE_MSL_2_0)`
	`485`	`+ // MSL and HLSL do not allow vector bool in if-conditions: wrap with any().`
	`486`	`+ if(m_lang == GPU_LANGUAGE_MSL_2_0 \|\| m_lang == GPU_LANGUAGE_HLSL_SM_5_0)`
`486`	`487`	`{`
`487`	`488`	`ret = "any( " + ret + " )";`
`488`	`489`	`}`