WebGLRenderingContext: disable() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

Note: This feature is available in Web Workers.

Phương thức WebGLRenderingContext.disable() của WebGL API vô hiệu hóa các khả năng cụ thể của WebGL cho bối cảnh này.

Cú pháp

disable(capability)

Thông số

capability

Một GLenum chỉ định khả năng WebGL nào sẽ bị vô hiệu hóa. Khả thi giá trị:

Constant	Description
`gl.BLEND`	Deactivates blending of the computed fragment color values. See `WebGLRenderingContext.blendFunc()`.
`gl.CULL_FACE`	Deactivates culling of polygons. See `WebGLRenderingContext.cullFace()`.
`gl.DEPTH_TEST`	Deactivates depth comparisons and updates to the depth buffer. See `WebGLRenderingContext.depthFunc()`.
`gl.DITHER`	Deactivates dithering of color components before they get written to the color buffer.
`gl.POLYGON_OFFSET_FILL`	Deactivates adding an offset to depth values of polygon's fragments. See `WebGLRenderingContext.polygonOffset()`.
`gl.SAMPLE_ALPHA_TO_COVERAGE`	Deactivates the computation of a temporary coverage value determined by the alpha value.
`gl.SAMPLE_COVERAGE`	Deactivates ANDing the fragment's coverage with the temporary coverage value. See `WebGLRenderingContext.sampleCoverage()`.
`gl.SCISSOR_TEST`	Deactivates the scissor test that discards fragments that are outside of the scissor rectangle. See `WebGLRenderingContext.scissor()`.
`gl.STENCIL_TEST`	Deactivates stencil testing and updates to the stencil buffer. See `WebGLRenderingContext.stencilFunc()`.

Khi sử dụng WebGL 2 context, các giá trị sau đây có sẵn bổ sung:

| Constant                | Description                                                                                                                                                               |
| ----------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `gl.RASTERIZER_DISCARD` | Deactivates that primitives are discarded immediately before the rasterization stage, but after the optional transform feedback stage. `gl.clear()` commands are ignored. |