Package org.lwjgl.opengl

Class ARBMultisample

java.lang.Object
org.lwjgl.opengl.ARBMultisample
public class ARBMultisample extends Object
Native bindings to the ARB_multisample extension.

This extension provides a mechanism to antialias all GL primitives: points, lines, polygons, bitmaps, and images. The technique is to sample all primitives multiple times at each pixel. The color sample values are resolved to a single, displayable color each time a pixel is updated, so the antialiasing appears to be automatic at the application level. Because each sample includes depth and stencil information, the depth and stencil functions perform equivalently to the single-sample mode.

An additional buffer, called the multisample buffer, is added to the framebuffer. Pixel sample values, including color, depth, and stencil values, are stored in this buffer. When the framebuffer includes a multisample buffer, it does not also include separate depth or stencil buffers, even if the multisample buffer does not store depth or stencil values. Color buffers (left/right, front/back, and aux) do coexist with the multisample buffer, however.

Multisample antialiasing is most valuable for rendering polygons, because it requires no sorting for hidden surface elimination, and it correctly handles adjacent polygons, object silhouettes, and even intersecting polygons. If only points or lines are being rendered, the "smooth" antialiasing mechanism provided by the base GL may result in a higher quality image. This extension is designed to allow multisample and smooth antialiasing techniques to be alternated during the rendering of a single scene.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final int
    GL_MULTISAMPLE_ARB
    Accepted by the cap parameter of Enable, Disable, and IsEnabled, and by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
    static final int
    GL_MULTISAMPLE_BIT_ARB
    Accepted by the mask parameter of PushAttrib.
    static final int
    GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
    Accepted by the cap parameter of Enable, Disable, and IsEnabled, and by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
    static final int
    GL_SAMPLE_ALPHA_TO_ONE_ARB
    Accepted by the cap parameter of Enable, Disable, and IsEnabled, and by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
    static final int
    GL_SAMPLE_BUFFERS_ARB
    Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
    static final int
    GL_SAMPLE_COVERAGE_ARB
    Accepted by the cap parameter of Enable, Disable, and IsEnabled, and by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
    static final int
    GL_SAMPLE_COVERAGE_INVERT_ARB
    Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
    static final int
    GL_SAMPLE_COVERAGE_VALUE_ARB
    Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
    static final int
    GL_SAMPLES_ARB
    Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.

  • Method Summary

    Modifier and Type
    Method
    Description
    static void
    glSampleCoverageARB(float value, boolean invert)
    Specifies simultaneously the values of SAMPLE_COVERAGE_VALUE_ARB and SAMPLE_COVERAGE_INVERT_ARB.

    Methods inherited from class java.lang.Object

    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • GL_MULTISAMPLE_ARB

      public static final int GL_MULTISAMPLE_ARB
      Accepted by the cap parameter of Enable, Disable, and IsEnabled, and by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
      See Also:

    • GL_SAMPLE_ALPHA_TO_COVERAGE_ARB

      public static final int GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
      Accepted by the cap parameter of Enable, Disable, and IsEnabled, and by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
      See Also:

    • GL_SAMPLE_ALPHA_TO_ONE_ARB

      public static final int GL_SAMPLE_ALPHA_TO_ONE_ARB
      Accepted by the cap parameter of Enable, Disable, and IsEnabled, and by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
      See Also:

    • GL_SAMPLE_COVERAGE_ARB

      public static final int GL_SAMPLE_COVERAGE_ARB
      Accepted by the cap parameter of Enable, Disable, and IsEnabled, and by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
      See Also:

    • GL_MULTISAMPLE_BIT_ARB

      public static final int GL_MULTISAMPLE_BIT_ARB
      Accepted by the mask parameter of PushAttrib.
      See Also:

    • GL_SAMPLE_BUFFERS_ARB

      public static final int GL_SAMPLE_BUFFERS_ARB
      Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
      See Also:

    • GL_SAMPLES_ARB

      public static final int GL_SAMPLES_ARB
      Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
      See Also:

    • GL_SAMPLE_COVERAGE_VALUE_ARB

      public static final int GL_SAMPLE_COVERAGE_VALUE_ARB
      Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
      See Also:

    • GL_SAMPLE_COVERAGE_INVERT_ARB

      public static final int GL_SAMPLE_COVERAGE_INVERT_ARB
      Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
      See Also:

  • Method Details