Class AMDSparseTexture



  • public class AMDSparseTexture
    extends java.lang.Object
    Native bindings to the AMD_sparse_texture extension.

    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 OpenGL 2.0 or ARB_fragment_shader.

    • Field Detail

      • GL_TEXTURE_STORAGE_SPARSE_BIT_AMD

        public static final int GL_TEXTURE_STORAGE_SPARSE_BIT_AMD
        Accepted by the flags parameter to TexStorageSparseAMD and TextureStorageSparseAMD.
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        Constant Field Values
      • GL_VIRTUAL_PAGE_SIZE_X_AMD

        public static final int GL_VIRTUAL_PAGE_SIZE_X_AMD
        Accepted by the pname parameter to GetInternalformativ.
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        Constant Field Values
      • GL_VIRTUAL_PAGE_SIZE_Y_AMD

        public static final int GL_VIRTUAL_PAGE_SIZE_Y_AMD
        Accepted by the pname parameter to GetInternalformativ.
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      • GL_VIRTUAL_PAGE_SIZE_Z_AMD

        public static final int GL_VIRTUAL_PAGE_SIZE_Z_AMD
        Accepted by the pname parameter to GetInternalformativ.
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        Constant Field Values
      • GL_MAX_SPARSE_TEXTURE_SIZE_AMD

        public static final int GL_MAX_SPARSE_TEXTURE_SIZE_AMD
        Accepted by the pname parameter to GetIntegerv, GetFloatv, GetDoublev, GetInteger64v, and GetBooleanv.
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      • GL_MAX_SPARSE_3D_TEXTURE_SIZE_AMD

        public static final int GL_MAX_SPARSE_3D_TEXTURE_SIZE_AMD
        Accepted by the pname parameter to GetIntegerv, GetFloatv, GetDoublev, GetInteger64v, and GetBooleanv.
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        Constant Field Values
      • GL_MAX_SPARSE_ARRAY_TEXTURE_LAYERS

        public static final int GL_MAX_SPARSE_ARRAY_TEXTURE_LAYERS
        Accepted by the pname parameter to GetIntegerv, GetFloatv, GetDoublev, GetInteger64v, and GetBooleanv.
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      • GL_MIN_SPARSE_LEVEL_AMD

        public static final int GL_MIN_SPARSE_LEVEL_AMD
        Accepted by the pname parameter of GetTexParameter{if}v.
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        Constant Field Values
      • GL_MIN_LOD_WARNING_AMD

        public static final int GL_MIN_LOD_WARNING_AMD
        Accepted by the pname parameter of TexParameter{if}{v} and GetTexParameter{if}v.
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        Constant Field Values
    • Method Detail

      • glTexStorageSparseAMD

        public static void glTexStorageSparseAMD(int target,
                                                 int internalFormat,
                                                 int width,
                                                 int height,
                                                 int depth,
                                                 int layers,
                                                 int flags)
      • glTextureStorageSparseAMD

        public static void glTextureStorageSparseAMD(int texture,
                                                     int target,
                                                     int internalFormat,
                                                     int width,
                                                     int height,
                                                     int depth,
                                                     int layers,
                                                     int flags)