Example usage for org.lwjgl.opengl ARBMultisample glSampleCoverageARB

Introduction

In this page you can find the example usage for org.lwjgl.opengl ARBMultisample glSampleCoverageARB.

Prototype

public static native void glSampleCoverageARB(@NativeType("GLfloat") float value,
        @NativeType("GLboolean") boolean invert);

Source Link

Document

Specifies simultaneously the values of #GL_SAMPLE_COVERAGE_VALUE_ARB SAMPLE_COVERAGE_VALUE_ARB and #GL_SAMPLE_COVERAGE_INVERT_ARB SAMPLE_COVERAGE_INVERT_ARB .

Usage

From source file:com.ardor3d.scene.state.lwjgl.LwjglBlendStateUtil.java

License:Open Source License

protected static void applySampleCoverage(final boolean enabled, final BlendState state,
        final BlendStateRecord record, final ContextCapabilities caps) {

    final boolean coverageInverted = state.isSampleCoverageInverted();
    final float coverageValue = state.getSampleCoverage();

    if (record.isValid()) {
        if (enabled) {
            if (!record.sampleCoverageEnabled) {
                GL11.glEnable(ARBMultisample.GL_SAMPLE_COVERAGE_ARB);
                record.sampleCoverageEnabled = true;
            }//from   w w w . jav a 2 s  . c  o  m
            if (record.sampleCoverageInverted != coverageInverted || record.sampleCoverage != coverageValue) {
                ARBMultisample.glSampleCoverageARB(coverageValue, coverageInverted);
                record.sampleCoverageInverted = coverageInverted;
                record.sampleCoverage = coverageValue;
            }
        } else {
            if (record.sampleCoverageEnabled) {
                GL11.glDisable(ARBMultisample.GL_SAMPLE_COVERAGE_ARB);
                record.sampleCoverageEnabled = false;
            }
        }
    } else {
        if (enabled) {
            GL11.glEnable(ARBMultisample.GL_SAMPLE_COVERAGE_ARB);
            record.sampleCoverageEnabled = true;
            ARBMultisample.glSampleCoverageARB(coverageValue, coverageInverted);
            record.sampleCoverageInverted = coverageInverted;
            record.sampleCoverage = coverageValue;
        } else {
            GL11.glDisable(ARBMultisample.GL_SAMPLE_COVERAGE_ARB);
            record.sampleCoverageEnabled = false;
        }
    }
}

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