WebGLRenderingContext.enable()
Baseline
Widely available
This feature is well established and works across many devices and browser versions. Itâs been available across browsers since иÑÐ»Ñ 2015 г..
ÐеÑод WebGLRenderingContext.enable() из WebGL API акÑивиÑÑÐµÑ Ð¾Ð¿ÑеделÑннÑе возможноÑÑи WebGL Ð´Ð»Ñ ÑекÑÑего конÑекÑÑа.
СинÑакÑиÑ
void gl.enable(cap);
ÐаÑамеÑÑÑ
cap-
A
GLenumspecifying which WebGL capability to enable. Possible values:ÐонÑÑанÑа ÐпиÑание gl.BLENDÐкÑивиÑÑÐµÑ ÑмеÑение знаÑений ÑвеÑов вÑÑиÑленного ÑÑагменÑа. СмоÑÑи WebGLRenderingContext.blendFunc().gl.CULL_FACEÐкÑивиÑÑÐµÑ Ð¾ÑбÑÐ°ÐºÐ¾Ð²ÐºÑ Ð¿Ð¾Ð»Ð¸Ð³Ð¾Ð½Ð¾Ð². СмоÑÑи WebGLRenderingContext.cullFace().gl.DEPTH_TESTÐкÑивиÑÑÐµÑ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ Ð³Ð»Ñбин и Ð¾Ð±Ð½Ð¾Ð²Ð»ÐµÐ½Ð¸Ñ Ð´Ð»Ñ Ð±ÑÑеÑа глÑбинÑ. СмоÑÑи WebGLRenderingContext.depthFunc().gl.DITHERActivates dithering of color components before they get written to the color buffer. gl.POLYGON_OFFSET_FILLActivates adding an offset to depth values of polygon's fragments. See WebGLRenderingContext.polygonOffset().gl.SAMPLE_ALPHA_TO_COVERAGEActivates the computation of a temporary coverage value determined by the alpha value. gl.SAMPLE_COVERAGEActivates ANDing the fragment's coverage with the temporary coverage value. See WebGLRenderingContext.sampleCoverage().gl.SCISSOR_TESTActivates the scissor test that discards fragments that are outside of the scissor rectangle. See WebGLRenderingContext.scissor().gl.STENCIL_TESTActivates stencil testing and updates to the stencil buffer. See WebGLRenderingContext.stencilFunc().When using a WebGL 2 context, the following values are available additionally:
Constant Description gl.RASTERIZER_DISCARDPrimitives are discarded immediately before the rasterization stage, but after the optional transform feedback stage. gl.clear()commands are ignored.
Return value
None.
Examples
js
gl.enable(gl.DITHER);
To check if a capability is enabled, use the WebGLRenderingContext.isEnabled() method:
js
gl.isEnabled(gl.DITHER);
// true
СпеÑиÑикаÑии
| Specification |
|---|
| WebGL Specification > # 5.14.3 > |