Class ARBTextureRG



  • public final class ARBTextureRG
    extends java.lang.Object
    Native bindings to the ARB_texture_rg extension.

    Historically one- and two- component textures have been specified in OpenGL using the intensity, luminance or luminance-alpha (I/L/LA) formats. With the advent of programmable shaders and render-to-texture capabilites these legacy formats carry some historical artifacts which are no longer useful.

    For example, when sampling from such textures, the luminance values are replicated across the color components, and the intensity values are replicated across both the color and alpha components. This is no longer necessary with programmable shaders.

    It is also desirable to be able to render to one- and two- component format textures using capabilities such as framebuffer objects (FBO), but rendering to I/L/LA formats is under-specified (specifically how to map R/G/B/A values to I/L/A texture channels).

    This extension adds new base internal formats for the one-component RED and two-component RG (red green) texture formats as well as sized internal formats for fixed-point, floating-point and pure integer texture formats. The new texure formats can be used for texturing as well as for rendering into with framebuffer objects.

    Promoted to core in OpenGL 3.0.

    • Field Detail

      • GL_R8

        public static final int GL_R8
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_R16

        public static final int GL_R16
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_RG8

        public static final int GL_RG8
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_RG16

        public static final int GL_RG16
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_R16F

        public static final int GL_R16F
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_R32F

        public static final int GL_R32F
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_RG16F

        public static final int GL_RG16F
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_RG32F

        public static final int GL_RG32F
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_R8I

        public static final int GL_R8I
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_R8UI

        public static final int GL_R8UI
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_R16I

        public static final int GL_R16I
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_R16UI

        public static final int GL_R16UI
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_R32I

        public static final int GL_R32I
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_R32UI

        public static final int GL_R32UI
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_RG8I

        public static final int GL_RG8I
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_RG8UI

        public static final int GL_RG8UI
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_RG16I

        public static final int GL_RG16I
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_RG16UI

        public static final int GL_RG16UI
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_RG32I

        public static final int GL_RG32I
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_RG32UI

        public static final int GL_RG32UI
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_RG

        public static final int GL_RG
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_COMPRESSED_RED

        public static final int GL_COMPRESSED_RED
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_COMPRESSED_RG

        public static final int GL_COMPRESSED_RG
        Accepted by the internalFormat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
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      • GL_RG_INTEGER

        public static final int GL_RG_INTEGER
        Accepted by the format parameter of TexImage1D, TexImage2D, TexImage3D, TexSubImage1D, TexSubImage2D, TexSubImage3D, and ReadPixels.
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