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GLTEXIMAGE2DMULTISAM(3G)                         OpenGL 3.3                         GLTEXIMAGE2DMULTISAM(3G)



NAME
       glTexImage2DMultisample - establish the data storage, format, dimensions, and number of samples of a
       multisample texture's image

C SPECIFICATION
       void glTexImage2DMultisample(GLenum target, GLsizei samples, GLint internalformat, GLsizei width,
                                    GLsizei height, GLboolean fixedsamplelocations);

PARAMETERS
       target
           Specifies the target of the operation.  target must be GL_TEXTURE_2D_MULTISAMPLE or
           GL_PROXY_TEXTURE_2D_MULTISAMPLE.

       samples
           The number of samples in the multisample texture's image.

       internalformat
           The internal format to be used to store the multisample texture's image.  internalformat must
           specify a color-renderable, depth-renderable, or stencil-renderable format.

       width
           The width of the multisample texture's image, in texels.

       height
           The height of the multisample texture's image, in texels.

       fixedsamplelocations
           Specifies whether the image will use identical sample locations and the same number of samples
           for all texels in the image, and the sample locations will not depend on the internal format or
           size of the image.

DESCRIPTION
       glTexImage2DMultisample establishes the data storage, format, dimensions and number of samples of a
       multisample texture's image.


       target must be GL_TEXTURE_2D_MULTISAMPLE or GL_PROXY_TEXTURE_2D_MULTISAMPLE.  width and height are
       the dimensions in texels of the texture, and must be in the range zero to GL_MAX_TEXTURE_SIZE - 1.
       samples specifies the number of samples in the image and must be in the range zero to GL_MAX_SAMPLES
       - 1.


       internalformat must be a color-renderable, depth-renderable, or stencil-renderable format.

       If fixedsamplelocations is GL_TRUE, the image will use identical sample locations and the same number
       of samples for all texels in the image, and the sample locations will not depend on the internal
       format or size of the image.

       When a multisample texture is accessed in a shader, the access takes one vector of integers
       describing which texel to fetch and an integer corresponding to the sample numbers describing which
       sample within the texel to fetch. No standard sampling instructions are allowed on the multisample
       texture targets.

NOTES
       glTexImage2DMultisample is available only if the GL version is 3.2 or greater.

ERRORS
       GL_INVALID_OPERATION is generated if internalformat is a depth- or stencil-renderable format and
       samples is greater than the value of GL_MAX_DEPTH_TEXTURE_SAMPLES.


       GL_INVALID_OPERATION is generated if internalformat is a color-renderable format and samples is
       greater than the value of GL_MAX_COLOR_TEXTURE_SAMPLES.


       GL_INVALID_OPERATION is generated if internalformat is a signed or unsigned integer format and
       samples is greater than the value of GL_MAX_INTEGER_SAMPLES.


       GL_INVALID_VALUE is generated if either width or height negative or is greater than
       GL_MAX_TEXTURE_SIZE.


       GL_INVALID_VALUE is generated if samples is greater than GL_MAX_SAMPLES.

SEE ALSO
       glTexImage3D(), glTexImage2DMultisample()


COPYRIGHT
       Copyright (C) 2010 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/.



OpenGL 3.3                                       03/08/2011                         GLTEXIMAGE2DMULTISAM(3G)