Known Issues

Limitations of D3D11 Feature Level 9_3 (e.g. Windows Phone devices)

These are things that we can't ever fix on 9_3.

#####GL_MAX_VARYING_VECTORS = 7

• For full OpenGL ES conformance, GL_MAX_VARYING_VECTORS should be >= 8.
• We can only support 7 on D3D11 Feature Level 9_3.

#####gl_FrontFace isn’t supported in fragment shaders

• Unfortunately it has no equivalent on D3D11 Feature Level 9.

#####Non-power-of-two texture cubes aren't supported

• They aren't supported by D3D11 Feature Level 9_3 hardware.

#####Vertex Texture Fetch isn’t supported

• This isn’t required for full OpenGL ES 2.0 conformance.

#####GL_RGBA32F_EXT textures aren't fully supported

• GL_RGBA32F_EXT is part of the 'GL_EXT_texture_storage' extension which is enabled on 9_3.
• Support for them isn’t required for full OpenGL ES 2.0 conformance.
• Simple operations with GL_RGBA32F_EXT will work. More complicated operations (e.g. blending) aren't supported.

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Known issues on D3D11 Feature Level 9_3

These are things that we are trying to fix on 9_3.

#####glDrawElements doesn't work with GL_POINTS

• We are working on a fix for this.

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Other known issues

None!

If you experience other issues with ANGLE in the Windows Store, then please file a GitHub issue here.