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colors were computed incorrectly (Hans Nelles)

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Brian Paul 2000-03-18 01:13:29 +00:00
parent e7b16b74bf
commit 586b4f66a8
1 changed files with 8 additions and 4 deletions
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12
progs/demos/gamma.c
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@ -1,5 +1,5 @@
/* $Id: gamma.c,v 1.1 1999/08/19 00:55:40 jtg Exp $ */
/* $Id: gamma.c,v 1.2 2000/03/18 01:13:29 brianp Exp $ */
/* Draw test patterns to help determine correct gamma value for a display.
When the intensities of the inner squares nearly match the intensities
@ -25,8 +25,11 @@
/*
* $Log: gamma.c,v $
* Revision 1.1 1999/08/19 00:55:40 jtg
* Initial revision
* Revision 1.2 2000/03/18 01:13:29 brianp
* colors were computed incorrectly (Hans Nelles)
*
* Revision 1.1.1.1 1999/08/19 00:55:40 jtg
* Imported sources
*
* Revision 3.1 1999/06/19 01:35:38 brianp
* merged in Kai Schuetz's RGB changes
@ -130,8 +133,9 @@ gamma_ramp(GLfloat yoffs, GLfloat r, GLfloat g, GLfloat b)
for(d = 1; d < 4; d++) { /* increasing density from 25% to 75% */
GLfloat xcoord = (-1.0 + d*0.4);
GLfloat t = d * 0.25;
glColor3f(r*d / 5.0, g*d / 5.0, b*d / 5.0); /* draw outer rect */
glColor3f(r*t, g*t, b*t); /* draw outer rect */
glRectf(xcoord, yoffs, xcoord+0.4, yoffs + 0.5);
glColor3f(0.0, 0.0, 0.0); /* "clear" inner rect */