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GLTEXSTORAGE3D(3G) | [FIXME: manual] | GLTEXSTORAGE3D(3G) |
NAME¶
glTexStorage3D, glTextureStorage3D - simultaneously specify storage for all levels of a three-dimensional, two-dimensional array or cube-map array textureC SPECIFICATION¶
void glTexStorage3D(GLenum target,
GLsizei levels,
GLenum internalformat,
GLsizei width, GLsizei height,
GLsizei depth);
void glTextureStorage3D(GLuint texture,
GLsizei levels,
GLenum internalformat,
GLsizei width, GLsizei height,
GLsizei depth);
PARAMETERS¶
targetSpecifies the target to which the texture object is bound
for glTexStorage3D. Must be one of GL_TEXTURE_3D,
GL_TEXTURE_2D_ARRAY, GL_TEXTURE_CUBE_ARRAY,
GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_2D_ARRAY or
GL_PROXY_TEXTURE_CUBE_ARRAY.
texture
Specifies the texture object name for
glTextureStorage3D. The effective target of texture must be one
of the valid non-proxy target values above.
levels
Specify the number of texture levels.
internalformat
Specifies the sized internal format to be used to store
texture image data.
width
Specifies the width of the texture, in texels.
height
Specifies the height of the texture, in texels.
depth
Specifies the depth of the texture, in texels.
DESCRIPTION¶
glTexStorage3D and glTextureStorage3D specify specify the storage requirements for all levels of a three-dimensional, two-dimensional array or cube-map array texture simultaneously. Once a texture is specified with this command, the format and dimensions of all levels become immutable unless it is a proxy texture. The contents of the image may still be modified, however, its storage requirements may not change. Such a texture is referred to as an immutable-format texture. The behavior of glTexStorage3D depends on the target parameter. When target is GL_TEXTURE_3D, or GL_PROXY_TEXTURE_3D, calling glTexStorage3D is equivalent, assuming no errors are generated, to executing the following pseudo-code:for (i = 0; i < levels; i++) { glTexImage3D(target, i, internalformat, width, height, depth, 0, format, type, NULL); width = max(1, (width / 2)); height = max(1, (height / 2)); depth = max(1, (depth / 2)); }
for (i = 0; i < levels; i++) { glTexImage3D(target, i, internalformat, width, height, depth, 0, format, type, NULL); width = max(1, (width / 2)); height = max(1, (height / 2)); }
Sized Internal Format | Base Internal Format | Red Bits | Green Bits | Blue Bits | Alpha Bits | Shared Bits |
GL_R8 | GL_RED | 8 | ||||
GL_R8_SNORM | GL_RED | s8 | ||||
GL_R16 | GL_RED | 16 | ||||
GL_R16_SNORM | GL_RED | s16 | ||||
GL_RG8 | GL_RG | 8 | 8 | |||
GL_RG8_SNORM | GL_RG | s8 | s8 | |||
GL_RG16 | GL_RG | 16 | 16 | |||
GL_RG16_SNORM | GL_RG | s16 | s16 | |||
GL_R3_G3_B2 | GL_RGB | 3 | 3 | 2 | ||
GL_RGB4 | GL_RGB | 4 | 4 | 4 | ||
GL_RGB5 | GL_RGB | 5 | 5 | 5 | ||
GL_RGB8 | GL_RGB | 8 | 8 | 8 | ||
GL_RGB8_SNORM | GL_RGB | s8 | s8 | s8 | ||
GL_RGB10 | GL_RGB | 10 | 10 | 10 | ||
GL_RGB12 | GL_RGB | 12 | 12 | 12 | ||
GL_RGB16_SNORM | GL_RGB | 16 | 16 | 16 | ||
GL_RGBA2 | GL_RGB | 2 | 2 | 2 | 2 | |
GL_RGBA4 | GL_RGB | 4 | 4 | 4 | 4 | |
GL_RGB5_A1 | GL_RGBA | 5 | 5 | 5 | 1 | |
GL_RGBA8 | GL_RGBA | 8 | 8 | 8 | 8 | |
GL_RGBA8_SNORM | GL_RGBA | s8 | s8 | s8 | s8 | |
GL_RGB10_A2 | GL_RGBA | 10 | 10 | 10 | 2 | |
GL_RGB10_A2UI | GL_RGBA | ui10 | ui10 | ui10 | ui2 | |
GL_RGBA12 | GL_RGBA | 12 | 12 | 12 | 12 | |
GL_RGBA16 | GL_RGBA | 16 | 16 | 16 | 16 | |
GL_SRGB8 | GL_RGB | 8 | 8 | 8 | ||
GL_SRGB8_ALPHA8 | GL_RGBA | 8 | 8 | 8 | 8 | |
GL_R16F | GL_RED | f16 | ||||
GL_RG16F | GL_RG | f16 | f16 | |||
GL_RGB16F | GL_RGB | f16 | f16 | f16 | ||
GL_RGBA16F | GL_RGBA | f16 | f16 | f16 | f16 | |
GL_R32F | GL_RED | f32 | ||||
GL_RG32F | GL_RG | f32 | f32 | |||
GL_RGB32F | GL_RGB | f32 | f32 | f32 | ||
GL_RGBA32F | GL_RGBA | f32 | f32 | f32 | f32 | |
GL_R11F_G11F_B10F | GL_RGB | f11 | f11 | f10 | ||
GL_RGB9_E5 | GL_RGB | 9 | 9 | 9 | 5 | |
GL_R8I | GL_RED | i8 | ||||
GL_R8UI | GL_RED | ui8 | ||||
GL_R16I | GL_RED | i16 | ||||
GL_R16UI | GL_RED | ui16 | ||||
GL_R32I | GL_RED | i32 | ||||
GL_R32UI | GL_RED | ui32 | ||||
GL_RG8I | GL_RG | i8 | i8 | |||
GL_RG8UI | GL_RG | ui8 | ui8 | |||
GL_RG16I | GL_RG | i16 | i16 | |||
GL_RG16UI | GL_RG | ui16 | ui16 | |||
GL_RG32I | GL_RG | i32 | i32 | |||
GL_RG32UI | GL_RG | ui32 | ui32 | |||
GL_RGB8I | GL_RGB | i8 | i8 | i8 | ||
GL_RGB8UI | GL_RGB | ui8 | ui8 | ui8 | ||
GL_RGB16I | GL_RGB | i16 | i16 | i16 | ||
GL_RGB16UI | GL_RGB | ui16 | ui16 | ui16 | ||
GL_RGB32I | GL_RGB | i32 | i32 | i32 | ||
GL_RGB32UI | GL_RGB | ui32 | ui32 | ui32 | ||
GL_RGBA8I | GL_RGBA | i8 | i8 | i8 | i8 | |
GL_RGBA8UI | GL_RGBA | ui8 | ui8 | ui8 | ui8 | |
GL_RGBA16I | GL_RGBA | i16 | i16 | i16 | i16 | |
GL_RGBA16UI | GL_RGBA | ui16 | ui16 | ui16 | ui16 | |
GL_RGBA32I | GL_RGBA | i32 | i32 | i32 | i32 | |
GL_RGBA32UI | GL_RGBA | ui32 | ui32 | ui32 | ui32 |
NOTES¶
GL_STENCIL_INDEX8ERRORS¶
GL_INVALID_OPERATION is generated by glTexStorage3D if zero is bound to target. GL_INVALID_OPERATION is generated by glTextureStorage3D if texture is not the name of an existing texture object. GL_INVALID_ENUM is generated if internalformat is not a valid sized internal format. GL_INVALID_ENUM is generated if target or the effective target of texture is not one of the accepted targets described above. GL_INVALID_VALUE is generated if width, height, depth or levels are less than 1. GL_INVALID_OPERATION is generated if target is GL_TEXTURE_3D or GL_PROXY_TEXTURE_3D and levels is greater than log 2 max width , height , depth + 1. GL_INVALID_OPERATION is generated if target is GL_TEXTURE_2D_ARRAY, GL_PROXY_TEXTURE_2D_ARRAY, GL_TEXURE_CUBE_ARRAY, or GL_PROXY_TEXTURE_CUBE_MAP_ARRAY and levels is greater than log 2 max width , height + 1.VERSION SUPPORT¶
OpenGL Version | ||||||||||||
Function / Feature Name | 2.0 | 2.1 | 3.0 | 3.1 | 3.2 | 3.3 | 4.0 | 4.1 | 4.2 | 4.3 | 4.4 | 4.5 |
glTexStorage3D | - | - | - | - | - | - | - | - | ✔ | ✔ | ✔ | ✔ |
glTextureStorage3D | - | - | - | - | - | - | - | - | - | - | - | ✔ |
SEE ALSO¶
glTexImage3D(), glTexStorage1D(), glTexStorage2D().COPYRIGHT¶
Copyright © 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.COPYRIGHT¶
Copyright © 2011-2014 Khronos Group08/26/2014 | [FIXME: source] |