Package org.lwjgl.opengl

Class ARBTextureCompressionBPTC

java.lang.Object
org.lwjgl.opengl.ARBTextureCompressionBPTC
public final class ARBTextureCompressionBPTC extends Object
Native bindings to the ARB_texture_compression_bptc extension.

This extension provides additional texture compression functionality specific to the BPTC and BPTC_FLOAT compressed texture formats (called BC7 and BC6H respectively in Microsoft's DirectX API), subject to all the requirements and limitations described by the extension ARB_texture_compression.

Traditional block compression methods as typified by s3tc and latc compress a block of pixels into indicies along a gradient. This works well for smooth images, but can have quality issues along sharp edges and strong chrominance transitions. To improve quality in these problematic cases, the BPTC formats can divide each block into multiple partitions, each of which are compressed using an independent gradient.

In addition, it is desirable to directly support high dynamic range imagery in compressed formats, which is accomplished by the BPTC_FLOAT formats.

Requires OpenGL 3.1 and ARB_texture_compression.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final int
    GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB
    Accepted by the internalformat parameter of TexImage2D, TexImage3D, CopyTexImage2D, CopyTexImage3D, CompressedTexImage2DARB, and CompressedTexImage3DARB and the format parameter of CompressedTexSubImage2DARB and CompressedTexSubImage3DARB.
    static final int
    GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB
    Accepted by the internalformat parameter of TexImage2D, TexImage3D, CopyTexImage2D, CopyTexImage3D, CompressedTexImage2DARB, and CompressedTexImage3DARB and the format parameter of CompressedTexSubImage2DARB and CompressedTexSubImage3DARB.
    static final int
    GL_COMPRESSED_RGBA_BPTC_UNORM_ARB
    Accepted by the internalformat parameter of TexImage2D, TexImage3D, CopyTexImage2D, CopyTexImage3D, CompressedTexImage2DARB, and CompressedTexImage3DARB and the format parameter of CompressedTexSubImage2DARB and CompressedTexSubImage3DARB.
    static final int
    GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB
    Accepted by the internalformat parameter of TexImage2D, TexImage3D, CopyTexImage2D, CopyTexImage3D, CompressedTexImage2DARB, and CompressedTexImage3DARB and the format parameter of CompressedTexSubImage2DARB and CompressedTexSubImage3DARB.

  • Method Summary

    Methods inherited from class java.lang.Object

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

  • Field Details

    • GL_COMPRESSED_RGBA_BPTC_UNORM_ARB

      public static final int GL_COMPRESSED_RGBA_BPTC_UNORM_ARB
      Accepted by the internalformat parameter of TexImage2D, TexImage3D, CopyTexImage2D, CopyTexImage3D, CompressedTexImage2DARB, and CompressedTexImage3DARB and the format parameter of CompressedTexSubImage2DARB and CompressedTexSubImage3DARB.
      See Also:

    • GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB

      public static final int GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB
      Accepted by the internalformat parameter of TexImage2D, TexImage3D, CopyTexImage2D, CopyTexImage3D, CompressedTexImage2DARB, and CompressedTexImage3DARB and the format parameter of CompressedTexSubImage2DARB and CompressedTexSubImage3DARB.
      See Also:

    • GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB

      public static final int GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB
      Accepted by the internalformat parameter of TexImage2D, TexImage3D, CopyTexImage2D, CopyTexImage3D, CompressedTexImage2DARB, and CompressedTexImage3DARB and the format parameter of CompressedTexSubImage2DARB and CompressedTexSubImage3DARB.
      See Also:

    • GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB

      public static final int GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB
      Accepted by the internalformat parameter of TexImage2D, TexImage3D, CopyTexImage2D, CopyTexImage3D, CompressedTexImage2DARB, and CompressedTexImage3DARB and the format parameter of CompressedTexSubImage2DARB and CompressedTexSubImage3DARB.
      See Also: