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# supportedRenderedTexturePixelFormats()

Returns a list of pixel formats that are supported for rendering to an onscreen OpenGL context.

```
optional func supportedRenderedTexturePixelFormats() -> [Any]!
```

## Return Value

Returns the list of texture pixel formats supported by [`copyRenderedTexture(forCGLContext:pixelFormat:bounds:isFlipped:)`](/documentation/Quartz/QCPlugInOutputImageProvider/copyRenderedTexture(forCGLContext:pixelFormat:bounds:isFlipped:)) or `nil` if not supported.

## Discussion

If this method returns nil, then Quartz Composer calls [`canRender(withCGLContext:)`](/documentation/Quartz/QCPlugInOutputImageProvider/canRender(withCGLContext:)) /[`render(withCGLContext:forBounds:)`](/documentation/Quartz/QCPlugInOutputImageProvider/render(withCGLContext:forBounds:)).

---

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