Package org.lwjgl.opengl

Class ARBTextureCompressionBPTC

java.lang.Object

org.lwjgl.opengl.ARBTextureCompressionBPTC

public final class ARBTextureCompressionBPTC
extends java.lang.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 and Description
static int	GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB GL_COMPRESSED_RGBA_BPTC_UNORM_ARB 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 Detail

GL_COMPRESSED_RGBA_BPTC_UNORM_ARB, GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB, GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB, 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.