Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/opensubdiv-source/examples/dxPtexViewer/sky.h

@@ -0,0 +1,48 @@
+//
+//   Copyright 2013 Nvidia
+//
+//   Licensed under the terms set forth in the LICENSE.txt file available at
+//   https://opensubdiv.org/license.
+//
+
+#include <D3D11.h>
+#include <D3Dcompiler.h>
+
+//
+// Draws an environment sphere centered on the camera w/ a texture
+//
+class Sky {
+
+public:
+
+    // Constructor (Sky does not own the texture asset)
+    Sky(ID3D11Device * device, ID3D11Texture2D * environmentMap);
+
+    ~Sky();
+
+    void Draw(ID3D11DeviceContext * deviceContext, float const mvp[16]);
+
+private:
+
+    void initialize(ID3D11Device * device);
+
+private:
+
+    int numIndices;
+
+    ID3D11VertexShader * vertexShader;
+    ID3D11PixelShader * pixelShader;
+    ID3D11Buffer * shaderConstants;
+
+    ID3D11InputLayout * inputLayout;
+    ID3D11RasterizerState * rasterizerState;
+    ID3D11DepthStencilState * depthStencilState;
+
+    ID3D11Texture2D * texture;
+    ID3D11ShaderResourceView * textureSRV;
+    ID3D11SamplerState * textureSS;
+
+    ID3D11Buffer * sphere;
+    ID3D11Buffer * sphereIndices;
+};
+