org.lwjgl.opengl

Class EXTPackedFloat

java.lang.Object

org.lwjgl.opengl.EXTPackedFloat

public final class EXTPackedFloat
extends java.lang.Object

Native bindings to the EXT_packed_float extension.

This extension adds a new 3-component floating-point texture format that fits within a single 32-bit word. This format stores 5 bits of biased exponent per component in the same manner as 16-bit floating-point formats, but rather than 10 mantissa bits, the red, green, and blue components have 6, 6, and 5 bits respectively. Each mantissa is assumed to have an implied leading one except in the denorm exponent case. There is no sign bit so only non-negative values can be represented. Positive infinity, positive denorms, and positive NaN values are representable. The value of the fourth component returned by a texture fetch is always 1.0.

This extension also provides support for rendering into an unsigned floating-point rendering format with the assumption that the texture format described above could also be advertised as an unsigned floating-point format for rendering.

The extension also provides a pixel external format for specifying packed float values directly.

Promoted to core in OpenGL 3.0.

Field Summary

Fields

Modifier and Type	Field and Description
static int	GL_R11F_G11F_B10F_EXT Accepted by the internalformat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, CopyTexImage2D, and RenderbufferStorageEXT.
static int	GL_RGBA_SIGNED_COMPONENTS_EXT Accepted by the pname parameters of GetIntegerv, GetFloatv, and GetDoublev.
static int	GL_UNSIGNED_INT_10F_11F_11F_REV_EXT Accepted by the type parameter of DrawPixels, ReadPixels, TexImage1D, TexImage2D, GetTexImage, TexImage3D, TexSubImage1D, TexSubImage2D, TexSubImage3D, GetHistogram, GetMinmax, ConvolutionFilter1D, ConvolutionFilter2D, ConvolutionFilter3D, GetConvolutionFilter, SeparableFilter2D, GetSeparableFilter, ColorTable, ColorSubTable, and GetColorTable.

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

GL_R11F_G11F_B10F_EXT

public static final int GL_R11F_G11F_B10F_EXT

Accepted by the internalformat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, CopyTexImage2D, and RenderbufferStorageEXT.

See Also:

Constant Field Values

GL_UNSIGNED_INT_10F_11F_11F_REV_EXT

public static final int GL_UNSIGNED_INT_10F_11F_11F_REV_EXT

Accepted by the type parameter of DrawPixels, ReadPixels, TexImage1D, TexImage2D, GetTexImage, TexImage3D, TexSubImage1D, TexSubImage2D, TexSubImage3D, GetHistogram, GetMinmax, ConvolutionFilter1D, ConvolutionFilter2D, ConvolutionFilter3D, GetConvolutionFilter, SeparableFilter2D, GetSeparableFilter, ColorTable, ColorSubTable, and GetColorTable.

See Also:

Constant Field Values

GL_RGBA_SIGNED_COMPONENTS_EXT

public static final int GL_RGBA_SIGNED_COMPONENTS_EXT

Accepted by the pname parameters of GetIntegerv, GetFloatv, and GetDoublev.

See Also:

Constant Field Values