org.lwjgl.opengl.ARBTextureCompressionRGTC Maven / Gradle / Ivy
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/*
* Copyright LWJGL. All rights reserved.
* License terms: https://www.lwjgl.org/license
* MACHINE GENERATED FILE, DO NOT EDIT
*/
package org.lwjgl.opengl;
/**
* Native bindings to the ARB_texture_compression_rgtc extension.
*
* This extension introduces four new block-based texture compression formats suited for unsigned and signed red and red-green textures (hence the name
* "rgtc" for Red-Green Texture Compression).
*
* These formats are designed to reduce the storage requirements and memory bandwidth required for red and red-green textures by a factor of 2-to-1 over
* conventional uncompressed luminance and luminance-alpha textures with 8-bit components ({@link GL11#GL_LUMINANCE8 LUMINANCE8} and {@link GL11#GL_LUMINANCE8_ALPHA8 LUMINANCE8_ALPHA8}).
*
* The compressed signed red-green format is reasonably suited for storing compressed normal maps.
*
* This extension uses the same compression format as the EXT_texture_compression_latc extension except the color data is
* stored in the red and green components rather than luminance and alpha. Representing compressed red and green components is consistent with the BC4 and
* BC5 compressed formats supported by DirectX 10.
*
* Requires {@link GL13 OpenGL 1.3} or {@link ARBTextureCompression ARB_texture_compression}. Promoted to core in {@link GL30 OpenGL 3.0}.
*/
public final class ARBTextureCompressionRGTC {
/**
* Accepted by the {@code internalformat} parameter of TexImage2D, CopyTexImage2D, and CompressedTexImage2D and the {@code format} parameter of
* CompressedTexSubImage2D.
*/
public static final int
GL_COMPRESSED_RED_RGTC1 = 0x8DBB,
GL_COMPRESSED_SIGNED_RED_RGTC1 = 0x8DBC,
GL_COMPRESSED_RG_RGTC2 = 0x8DBD,
GL_COMPRESSED_SIGNED_RG_RGTC2 = 0x8DBE;
private ARBTextureCompressionRGTC() {}
}