glGetShaderPrecisionFormat

retrieve the range and precision for numeric formats supported by the shader compiler

function glGetShaderPrecisionFormat(int $shadertype, int $precisiontype, int &$range, int &$precision) : void

arguments

1. int $shadertype
2. int $precisiontype
3. int $range Specifies the address of array of two integers into which encodings of the implementation's numeric range are returned.
4. int $precision Specifies the address of an integer into which the numeric precision of the implementation is written.

returns

void

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