Michaël Lemaire
763e75f77e
git-svn-id: https://subversion.assembla.com/svn/thunderk/paysages@191 b1fd45b6-86a6-48da-8261-f70d1f35bdcc
50 lines
804 B
C
50 lines
804 B
C
#include "shared/types.h"
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#include "shared/functions.h"
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#include "shared/globals.h"
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#include "shared/constants.h"
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static double _near = 0.0, _far = 1.0;
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static Color _col = {0.0, 0.0, 0.0, 0.0};
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void fogSave(FILE* f)
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{
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}
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void fogLoad(FILE* f)
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{
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}
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void fogSetColor(Color col)
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{
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_col = col;
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}
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void fogSetDistance(double near, double far)
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{
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_near = near;
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_far = far;
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}
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Color fogApplyToLocation(Vector3 location, Color base)
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{
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Color mask = _col;
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double distance = v3Norm(v3Sub(camera_location, location));
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double value;
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if (distance < _near)
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{
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return base;
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}
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else if (distance > _far)
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{
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distance = _far;
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}
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value = 0.8 * (distance - _near) / (_far - _near);
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mask.a *= value;
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colorMask(&base, &mask);
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return base;
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}
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