Class EXTSparseTexture
Recent advances in application complexity and a desire for higher resolutions have pushed texture sizes up considerably. Often, the amount of physical memory available to a graphics processor is a limiting factor in the performance of texture-heavy applications. Once the available physical memory is exhausted, paging may occur bringing performance down considerably - or worse, the application may fail. Nevertheless, the amount of address space available to the graphics processor has increased to the point where many gigabytes - or even terabytes of address space may be usable even though that amount of physical memory is not present.
This extension allows the separation of the graphics processor's address space (reservation) from the requirement that all textures must be physically backed (commitment). This exposes a limited form of virtualization for textures. Use cases include sparse (or partially resident) textures, texture paging, on-demand and delayed loading of texture assets and application controlled level of detail.
Requires GLES 3.1
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final int
Accepted by thepname
parameter to GetIntegerv, GetFloatv, GetInteger64v, and GetBooleanv.static final int
Accepted by thepname
parameter to GetIntegerv, GetFloatv, GetInteger64v, and GetBooleanv.static final int
Accepted by thepname
parameter to GetIntegerv, GetFloatv, GetInteger64v, and GetBooleanv.static final int
Accepted by thepname
parameter of GetTexParameter{if}v, GetTexParameterIi{u}vOES, and GetTexParameterIi{u}vEXT.static final int
Accepted by thepname
parameter to GetInternalformativ.static final int
Accepted by thepname
parameter to GetIntegerv, GetFloatv, GetInteger64v, and GetBooleanv.static final int
Accepted by thetarget
parameter to GetInternalformativ.static final int
Accepted by thetarget
parameter to GetInternalformativ.static final int
Accepted by thetarget
parameter to GetInternalformativ.static final int
Accepted by thetarget
parameter to GetInternalformativ.static final int
Accepted by thetarget
parameter to GetInternalformativ.static final int
Accepted by thepname
parameter to TexParameter{if}{v}, GetTexParameter{if}v, TexParameterI{u}ivOES, GetTexParameterI{u}ivOES TexParameterI{u}ivEXT, and GetTexParameterI{u}ivEXT.static final int
Accepted by thepname
parameter to TexParameter{if}{v}, GetTexParameter{if}v, TexParameterI{u}ivOES, GetTexParameterI{u}ivOES TexParameterI{u}ivEXT, and GetTexParameterI{u}ivEXT.static final int
Accepted by thepname
parameter to GetInternalformativ.static final int
Accepted by thepname
parameter to GetInternalformativ.static final int
Accepted by thepname
parameter to GetInternalformativ. -
Method Summary
Modifier and TypeMethodDescriptionstatic void
glTexPageCommitmentARB
(int target, int level, int xoffset, int yoffset, int zoffset, int width, int height, int depth, boolean commit)
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Field Details
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GL_TEXTURE_SPARSE_EXT
public static final int GL_TEXTURE_SPARSE_EXTAccepted by thepname
parameter to TexParameter{if}{v}, GetTexParameter{if}v, TexParameterI{u}ivOES, GetTexParameterI{u}ivOES TexParameterI{u}ivEXT, and GetTexParameterI{u}ivEXT.- See Also:
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GL_VIRTUAL_PAGE_SIZE_INDEX_EXT
public static final int GL_VIRTUAL_PAGE_SIZE_INDEX_EXTAccepted by thepname
parameter to TexParameter{if}{v}, GetTexParameter{if}v, TexParameterI{u}ivOES, GetTexParameterI{u}ivOES TexParameterI{u}ivEXT, and GetTexParameterI{u}ivEXT.- See Also:
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GL_NUM_SPARSE_LEVELS_EXT
public static final int GL_NUM_SPARSE_LEVELS_EXTAccepted by thepname
parameter of GetTexParameter{if}v, GetTexParameterIi{u}vOES, and GetTexParameterIi{u}vEXT.- See Also:
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GL_NUM_VIRTUAL_PAGE_SIZES_EXT
public static final int GL_NUM_VIRTUAL_PAGE_SIZES_EXTAccepted by thepname
parameter to GetInternalformativ.- See Also:
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GL_VIRTUAL_PAGE_SIZE_X_EXT
public static final int GL_VIRTUAL_PAGE_SIZE_X_EXTAccepted by thepname
parameter to GetInternalformativ.- See Also:
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GL_VIRTUAL_PAGE_SIZE_Y_EXT
public static final int GL_VIRTUAL_PAGE_SIZE_Y_EXTAccepted by thepname
parameter to GetInternalformativ.- See Also:
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GL_VIRTUAL_PAGE_SIZE_Z_EXT
public static final int GL_VIRTUAL_PAGE_SIZE_Z_EXTAccepted by thepname
parameter to GetInternalformativ.- See Also:
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GL_TEXTURE_2D
public static final int GL_TEXTURE_2DAccepted by thetarget
parameter to GetInternalformativ.- See Also:
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GL_TEXTURE_2D_ARRAY
public static final int GL_TEXTURE_2D_ARRAYAccepted by thetarget
parameter to GetInternalformativ.- See Also:
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GL_TEXTURE_CUBE_MAP
public static final int GL_TEXTURE_CUBE_MAPAccepted by thetarget
parameter to GetInternalformativ.- See Also:
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GL_TEXTURE_CUBE_MAP_ARRAY_OES
public static final int GL_TEXTURE_CUBE_MAP_ARRAY_OESAccepted by thetarget
parameter to GetInternalformativ.- See Also:
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GL_TEXTURE_3D
public static final int GL_TEXTURE_3DAccepted by thetarget
parameter to GetInternalformativ.- See Also:
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GL_MAX_SPARSE_TEXTURE_SIZE_EXT
public static final int GL_MAX_SPARSE_TEXTURE_SIZE_EXTAccepted by thepname
parameter to GetIntegerv, GetFloatv, GetInteger64v, and GetBooleanv.- See Also:
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GL_MAX_SPARSE_3D_TEXTURE_SIZE_EXT
public static final int GL_MAX_SPARSE_3D_TEXTURE_SIZE_EXTAccepted by thepname
parameter to GetIntegerv, GetFloatv, GetInteger64v, and GetBooleanv.- See Also:
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GL_MAX_SPARSE_ARRAY_TEXTURE_LAYERS_EXT
public static final int GL_MAX_SPARSE_ARRAY_TEXTURE_LAYERS_EXTAccepted by thepname
parameter to GetIntegerv, GetFloatv, GetInteger64v, and GetBooleanv.- See Also:
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GL_SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS_EXT
public static final int GL_SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS_EXTAccepted by thepname
parameter to GetIntegerv, GetFloatv, GetInteger64v, and GetBooleanv.- See Also:
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Method Details
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glTexPageCommitmentARB
public static void glTexPageCommitmentARB(int target, int level, int xoffset, int yoffset, int zoffset, int width, int height, int depth, boolean commit)
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