README file from "image_extensions" directory
~opengl2/examples/image_extensions README Copyright 1994-1996, Silicon Graphics, Inc. Technical Education Development All Rights Reserved. A collection of programs that exercise some of the GL extensions introduced only in IRIX 5.3 and IRIX 6.2. All of these programs (should!) check if the extension exists before trying it. NOTE: These programs have been #ifdef'ed so that they will compile on older release (prior to IRIX 5.3), but because these programs use extensions to the OpenGL standard, they will not run properly on releases that do not support these extensions. IRIX 5.3 or later is recommended. convolution.c Uses the GL_EXT_convolution extension to sharpend an image. The original image is displayed on the left and the sharpened image is displayed on the right. Escape Key - exit the program histogram.c Use the GL_EXT_histogram extension to display an image with its histogram. Escape Key - exit the program histconv.c Use the GL_EXT_histogram extension to display a convolved image with its histogram. Escape Key - exit the program
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