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Making sun color dependent on angle.

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This commit is contained in:
Faerbit 2015-03-10 08:09:02 +01:00
parent 428c9df4ea
commit 3090c5e0f9
1 changed files with 16 additions and 2 deletions
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18
data/shader/phong.fsh
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@ -107,6 +107,20 @@ vec4 fogColor(float dot) {
} }
vec3 sunColor(float dot){
float riseFactor = 0.0;
if(dot<-0.79) {
riseFactor = 0.0;
}
else if (dot>0.79) {
riseFactor = 0.0;
}
else {
riseFactor = cos(2*dot);
}
return mix(directionalColor, vec3(fogColorRise), riseFactor);
}
float sampleDirectionalShadow(sampler2DShadow shadowMap, vec4 shadowCoord, float maxBias ) { float sampleDirectionalShadow(sampler2DShadow shadowMap, vec4 shadowCoord, float maxBias ) {
float visibility = 1.0; float visibility = 1.0;
const float stretching = 650.0; const float stretching = 650.0;
@ -179,11 +193,11 @@ void main()
directionalVisibility = sampleDirectionalShadow(shadowMap_directional2, shadowCoord2, 0.01); directionalVisibility = sampleDirectionalShadow(shadowMap_directional2, shadowCoord2, 0.01);
} }
diffuseColor += clamp(dot(normalize(vNormal), directionalVector) diffuseColor += clamp(dot(normalize(vNormal), directionalVector)
*diffuseFactor*directionalIntensity*directionalColor, 0.0, 1.0)*directionalVisibility; *diffuseFactor*directionalIntensity*sunColor(sunAngle), 0.0, 1.0)*directionalVisibility;
vec3 cameraVector = normalize(camera - vec3(fragPosition)); vec3 cameraVector = normalize(camera - vec3(fragPosition));
specularColor += clamp(pow((dot((cameraVector+directionalVector),normalize(vNormal))/ specularColor += clamp(pow((dot((cameraVector+directionalVector),normalize(vNormal))/
(length(cameraVector+directionalVector)*length(normalize(vNormal)))),shininess), 0.0, 1.0) (length(cameraVector+directionalVector)*length(normalize(vNormal)))),shininess), 0.0, 1.0)
*specularFactor*directionalIntensity*directionalColor*directionalVisibility; *specularFactor*directionalIntensity*sunColor(sunAngle)*directionalVisibility;
} }
} }