1 files changed, 1 insertions, 1 deletions
diff --git a/tools/render-test/render-test-main.cpp b/tools/render-test/render-test-main.cpp
index 567e0b988..d71628fd0 100644
--- a/tools/render-test/render-test-main.cpp
+++ b/tools/render-test/render-test-main.cpp
@@ -681,7 +681,7 @@ void RenderTestApp::_initializeAccelerationStructure()
 
     IBufferResource::Desc transformBufferDesc;
     transformBufferDesc.type = IResource::Type::Buffer;
-    transformBufferDesc.sizeInBytes = sizeof(float) * 16;
+    transformBufferDesc.sizeInBytes = sizeof(float) * 12;
     transformBufferDesc.defaultState = ResourceState::ShaderResource;
     float transformData[12] = {
         1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f};