Fix normal calculation for counter clockwise

kevyuu · kevyuu · commit 03c3726b51fe · 2025-09-02T20:12:24.000+07:00
diff --git a/67_RayQueryGeometry/app_resources/render.comp.hlsl b/67_RayQueryGeometry/app_resources/render.comp.hlsl
@@ -59,7 +59,7 @@ float3 calculateNormals(int primID, SGeomInfo geom, float2 bary)
         float3 v1 = vk::RawBufferLoad<float3>(vertexBufferAddress + indices[1] * 12);
         float3 v2 = vk::RawBufferLoad<float3>(vertexBufferAddress + indices[2] * 12);
 
-        return normalize(cross(v2 - v0, v1 - v0));
+        return normalize(cross(v1 - v0, v2 - v0));
     }
 
     float3 n0, n1, n2;

Original file line number	Diff line number	Diff line change
`@@ -59,7 +59,7 @@ float3 calculateNormals(int primID, SGeomInfo geom, float2 bary)`
`59`	`59`	`float3 v1 = vk::RawBufferLoad<float3>(vertexBufferAddress + indices[1] * 12);`
`60`	`60`	`float3 v2 = vk::RawBufferLoad<float3>(vertexBufferAddress + indices[2] * 12);`
`61`	`61`
`62`		`- return normalize(cross(v2 - v0, v1 - v0));`
	`62`	`+ return normalize(cross(v1 - v0, v2 - v0));`
`63`	`63`	`}`
`64`	`64`
`65`	`65`	`float3 n0, n1, n2;`