README file from "fog" directory
~opengl2/examples/fog README Copyright 1991-93, 1995, Silicon Graphics, Inc. Technical Education Development All Rights Reserved. fog.c: demonstrates how to use fog This program demonstrates using different types of fog. Pressing the <f> key chooses between 3 types of fog: exponential, exponential squared, and linear. If the fog mode is GL_EXP or GL_EXP2, pressing the up and down arrow keys adjusts the density value. If the fog mode is GL_LINEAR, pressing the up and down arrow keys adjusts the end value for linear fog. The start value for the linear fog is fixed. Escape key - exit the program <f> key - change the fog blend function UP Arrow Key - increase the fog density or end value DOWN Arrow Key - decrease the fog density or end value
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