> ## Documentation Index
> Fetch the complete documentation index at: https://rive.app/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# GPUFeatures

Optional GPU capabilities. Returned by `context:features()`.

## Fields

### `bc`

BC (S3TC/DXT) compressed texture formats supported.

### `etc2`

ETC2 compressed texture formats supported (common on mobile).

### `astc`

ASTC compressed texture formats supported.

### `maxTextureSize2D`

Maximum 2-D texture width or height in texels.

### `maxTextureSizeCube`

Maximum cube-map face size in texels.

### `maxTextureSize3D`

Maximum 3-D texture depth / layer count.

### `anisotropicFiltering`

Anisotropic texture filtering supported.

### `texture3D`

3-D textures supported.

### `textureArrays`

Texture arrays supported.

### `colorBufferFloat`

32-bit float color render targets supported (rgba32float etc).

### `colorBufferHalfFloat`

16-bit float color render targets supported (rgba16float etc). Implied
by colorBufferFloat, but can be present without it on WebGL.

### `perTargetBlend`

Independent blend state per color attachment supported.

### `perTargetWriteMask`

Independent write mask per color attachment supported.

### `drawBaseInstance`

Non-zero firstInstance in draw calls supported.

### `depthBiasClamp`

Depth bias clamping (depthBiasClamp) supported in pipeline state.

### `maxColorAttachments`

Maximum number of simultaneous color attachments.

### `maxUniformBufferSize`

Maximum uniform buffer binding size in bytes.

### `maxSamplers`

Maximum number of samplers per shader stage.

### `maxSamples`

Maximum MSAA sample count for color render targets (always a power-of-two: 1, 2, 4, or 8).