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Note: This feature is available in Web Workers.
The WebGLRenderingContext.sampleCoverage() method of the WebGL API specifies multi-sample coverage parameters for anti-aliasing effects.
sampleCoverage(value, invert)
value
A GLclampf which sets a single floating-point coverage value clamped to the range [0,1]. The default value is 1.0.
invert
A GLboolean which sets whether or not the coverage masks should be inverted. The default value is false.
None (undefined).
Multi-sampling is disabled by default. To enable or disable multi-sampling, use the enable() and disable() methods with the argument gl.SAMPLE_COVERAGE and gl.SAMPLE_ALPHA_TO_COVERAGE.
gl.enable(gl.SAMPLE_COVERAGE);
gl.sampleCoverage(0.5, false);
To check the sample coverage values, query the SAMPLE_COVERAGE_VALUE and SAMPLE_COVERAGE_INVERT constants.
gl.getParameter(gl.SAMPLE_COVERAGE_VALUE); // 0.5
gl.getParameter(gl.SAMPLE_COVERAGE_INVERT); // false
HTMLCanvasElement.getContext() â antialias parameter for the context.RetroSearch is an open source project built by @garambo | Open a GitHub Issue
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