Fix RT validation error (#8132)

cwfitzgerald · web-flow · commit 37c4c8813826 · 2025-08-24T07:09:25.000+12:00
diff --git a/wgpu-hal/src/vulkan/command.rs b/wgpu-hal/src/vulkan/command.rs
@@ -630,7 +630,7 @@ impl crate::CommandEncoder for super::CommandEncoder {
                                 .first_vertex(triangles.first_vertex);
                         } else {
                             range = range
-                                .primitive_count(triangles.vertex_count)
+                                .primitive_count(triangles.vertex_count / 3)
                                 .first_vertex(triangles.first_vertex);
                         }
 
diff --git a/wgpu-hal/src/vulkan/device.rs b/wgpu-hal/src/vulkan/device.rs
@@ -2557,7 +2557,7 @@ impl crate::Device for super::Device {
                             triangle_data.index_type(conv::map_index_format(indices.format));
                         indices.count / 3
                     } else {
-                        triangles.vertex_count
+                        triangles.vertex_count / 3
                     };
 
                     let geometry = vk::AccelerationStructureGeometryKHR::default()

Original file line number	Diff line number	Diff line change
`@@ -630,7 +630,7 @@ impl crate::CommandEncoder for super::CommandEncoder {`
`630`	`630`	`.first_vertex(triangles.first_vertex);`
`631`	`631`	`} else {`
`632`	`632`	`range = range`
`633`		`- .primitive_count(triangles.vertex_count)`
	`633`	`+ .primitive_count(triangles.vertex_count / 3)`
`634`	`634`	`.first_vertex(triangles.first_vertex);`
`635`	`635`	`}`
`636`	`636`