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Do some math omtimizations as pointed out by Norman

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ehofman
2003-06-27 21:36:05 +00:00
parent 7f4f778bb1
commit fa42efcf91
1 changed files with 4 additions and 3 deletions
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7
simgear/scene/sky/oursun.cxx
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@@ -349,9 +349,10 @@ bool SGSun::repaint( double sun_angle ) {
sun_factor = sun_factor/2 + 0.5;
sgVec4 color;
color[0] = pow(sun_factor, 0.25);
color[1] = pow(sun_factor, 0.50);
color[2] = pow(sun_factor, 4.0);
color[1] = sqrt(sun_factor);
color[0] = sqrt(color[1]);
color[2] = sun_factor * sun_factor;
color[2] *= color[2];
color[3] = 1.0;
gamma_correct_rgb( color );