Class APPLETexturePackedFloat
This extension adds two new 3-component floating-point texture formats that fit within a single 32-bit word called R11F_G11F_B10F and RGB9_E5
The first RGB format, R11F_G11F_B10F, 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, positivedenorms, and positive NaN values are representable. The value of the fourth component returned by a texture fetch is always 1.0.
The second RGB format, RGB9_E5, stores a single 5-bit exponent (biased up by 15) and three 9-bit mantissas for each respective component. There is no sign bit so all three components must be non-negative. The fractional mantissas are stored without an implied 1 to the left of the decimal point. Neither infinity nor not-a-number (NaN) are representable in this shared exponent format.
Requires GLES 2.0
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Field Summary
Modifier and TypeFieldDescriptionstatic final int
Accepted by theinternalformat
parameter of TexStorage2DEXT.static final int
Accepted by theinternalformat
parameter of TexStorage2DEXT.static final int
Accepted by thetype
parameter of TexImage2D and TexSubImage2D.static final int
Accepted by thetype
parameter of TexImage2D and TexSubImage2D. -
Method Summary
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Field Details
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GL_UNSIGNED_INT_10F_11F_11F_REV_APPLE
public static final int GL_UNSIGNED_INT_10F_11F_11F_REV_APPLEAccepted by thetype
parameter of TexImage2D and TexSubImage2D.- See Also:
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GL_UNSIGNED_INT_5_9_9_9_REV_APPLE
public static final int GL_UNSIGNED_INT_5_9_9_9_REV_APPLEAccepted by thetype
parameter of TexImage2D and TexSubImage2D.- See Also:
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GL_R11F_G11F_B10F_APPLE
public static final int GL_R11F_G11F_B10F_APPLEAccepted by theinternalformat
parameter of TexStorage2DEXT.- See Also:
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GL_RGB9_E5_APPLE
public static final int GL_RGB9_E5_APPLEAccepted by theinternalformat
parameter of TexStorage2DEXT.- See Also:
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