56 lines
1.6 KiB
GLSL
56 lines
1.6 KiB
GLSL
#version 120
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#define lightingColors
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#include "/shaders.settings"
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varying vec2 texcoord;
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varying vec3 sunVec;
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varying vec3 upVec;
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varying vec3 sunlight;
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varying float tr;
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varying float sunVisibility;
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varying float moonVisibility;
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uniform vec3 sunPosition;
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uniform vec3 upPosition;
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uniform int worldTime;
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const vec3 ToD[7] = vec3[7]( vec3(0.58597,0.16,0.005),
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vec3(0.58597,0.31,0.08),
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vec3(0.58597,0.45,0.16),
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vec3(0.58597,0.5,0.35),
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vec3(0.58597,0.5,0.36),
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vec3(0.58597,0.5,0.37),
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vec3(0.58597,0.5,0.38));
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void main() {
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//Position
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gl_Position = ftransform();
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texcoord = (gl_MultiTexCoord0).xy;
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/*--------------------------------*/
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//Sun/moon pos
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sunVec = normalize(sunPosition);
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upVec = vec3(0.0, 1.0, 0.0); //fix for loading shaderpacks in nether and end, optifine bug.
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float SdotU = dot(sunVec,upVec);
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sunVisibility = pow(clamp(SdotU+0.15,0.0,0.15)/0.15,4.0);
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moonVisibility = pow(clamp(-SdotU+0.15,0.0,0.15)/0.15,4.0);
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/*--------------------------------*/
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//reduced the sun color to a 7 array
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float hour = max(mod(worldTime/1000.0+2.0,24.0)-2.0,0.0); //-0.1
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float cmpH = max(-abs(floor(hour)-6.0)+6.0,0.0); //12
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float cmpH1 = max(-abs(floor(hour)-5.0)+6.0,0.0); //1
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vec3 temp = ToD[int(cmpH)];
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vec3 temp2 = ToD[int(cmpH1)];
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sunlight = mix(temp,temp2,fract(hour));
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sunlight.rgb += vec3(r_multiplier,g_multiplier,b_multiplier); //allows lighting colors to be tweaked.
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sunlight.rgb *= light_brightness; //brightness needs to be adjusted if we tweak lighting colors.
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vec2 trCalc = min(abs(worldTime-vec2(23000.0,12700.0)),750.0);
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tr = max(min(trCalc.x,trCalc.y)/375.0-1.0,0.0);
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}
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