glCopyConvolutionFilter2D

copy pixels into a two-dimensional convolution filter

Signature

glCopyConvolutionFilter2D( GLenum ( target ) , GLenum ( internalformat ) , GLint ( x ) , GLint ( y ) , GLsizei ( width ) , GLsizei ( height ) )-> void
glCopyConvolutionFilter2D( target , internalformat , x , y , width , height )

Parameters

VariablesDescription
target
Must be GL_CONVOLUTION_2D .
internalformat
The internal format of the convolution filter kernel. The allowable values are GL_ALPHA , GL_ALPHA4 , GL_ALPHA8 , GL_ALPHA12 , GL_ALPHA16 , GL_LUMINANCE , GL_LUMINANCE4 , GL_LUMINANCE8 , GL_LUMINANCE12 , GL_LUMINANCE16 , GL_LUMINANCE_ALPHA , GL_LUMINANCE4_ALPHA4 , GL_LUMINANCE6_ALPHA2 , GL_LUMINANCE8_ALPHA8 , GL_LUMINANCE12_ALPHA4 , GL_LUMINANCE12_ALPHA12 , GL_LUMINANCE16_ALPHA16 , GL_INTENSITY , GL_INTENSITY4 , GL_INTENSITY8 , GL_INTENSITY12 , GL_INTENSITY16 , GL_R3_G3_B2 , GL_RGB , GL_RGB4 , GL_RGB5 , GL_RGB8 , GL_RGB10 , GL_RGB12 , GL_RGB16 , GL_RGBA , GL_RGBA2 , GL_RGBA4 , GL_RGB5_A1 , GL_RGBA8 , GL_RGB10_A2 , GL_RGBA12 , or GL_RGBA16 .
x, y
The window space coordinates of the lower-left coordinate of the pixel array to copy.
width
The width of the pixel array to copy.
height
The height of the pixel array to copy.

Copyright Notices

This documentation is based on documentation licensed under the SGI Free Software License B.