org.lwjgl.opengles

Class NVConservativeRaster

java.lang.Object

org.lwjgl.opengles.NVConservativeRaster

public class NVConservativeRaster
extends java.lang.Object

Native bindings to the NV_conservative_raster extension.

This extension adds a "conservative" rasterization mode where any pixel that is partially covered, even if no sample location is covered, is treated as fully covered and a corresponding fragment will be shaded.

A new control is also added to modify window coordinate snapping precision.

These controls can be used to implement "binning" to a low-resolution render target, for example to determine which tiles of a sparse texture need to be populated. An app can construct a framebuffer where there is one pixel per tile in the sparse texture, and adjust the number of subpixel bits such that snapping occurs to the same effective grid as when rendering to the sparse texture. Then triangles should cover (at least) the same pixels in the low-res framebuffer as they do tiles in the sparse texture.

Requires GLES 2.0.

Field Summary

Fields

Modifier and Type	Field and Description
static int	GL_CONSERVATIVE_RASTERIZATION_NV Accepted by the cap parameter of Enable, Disable, IsEnabled.
static int	GL_MAX_SUBPIXEL_PRECISION_BIAS_BITS_NV Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
static int	GL_SUBPIXEL_PRECISION_BIAS_X_BITS_NV Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
static int	GL_SUBPIXEL_PRECISION_BIAS_Y_BITS_NV Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.

Method Summary

Modifier and Type	Method and Description
static void	glSubpixelPrecisionBiasNV(int xbits, int ybits)

Methods inherited from class java.lang.Object

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

Field Detail

GL_CONSERVATIVE_RASTERIZATION_NV

public static final int GL_CONSERVATIVE_RASTERIZATION_NV

Accepted by the cap parameter of Enable, Disable, IsEnabled.

See Also:

Constant Field Values

GL_SUBPIXEL_PRECISION_BIAS_X_BITS_NV

public static final int GL_SUBPIXEL_PRECISION_BIAS_X_BITS_NV

Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.

See Also:

Constant Field Values

GL_SUBPIXEL_PRECISION_BIAS_Y_BITS_NV

public static final int GL_SUBPIXEL_PRECISION_BIAS_Y_BITS_NV

Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.

See Also:

Constant Field Values

GL_MAX_SUBPIXEL_PRECISION_BIAS_BITS_NV

public static final int GL_MAX_SUBPIXEL_PRECISION_BIAS_BITS_NV

Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.

See Also:

Constant Field Values

Method Detail

glSubpixelPrecisionBiasNV

public static void glSubpixelPrecisionBiasNV(int xbits,
                                             int ybits)