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14 lines
511 B
GLSL
14 lines
511 B
GLSL
#version 150
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#define MINECRAFT_LIGHT_POWER (0.6)
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#define MINECRAFT_AMBIENT_LIGHT (0.4)
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vec4 minecraft_mix_light(vec3 lightDir0, vec3 lightDir1, vec3 normal, vec4 color) {
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lightDir0 = normalize(lightDir0);
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lightDir1 = normalize(lightDir1);
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float light0 = max(0.0, dot(lightDir0, normal));
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float light1 = max(0.0, dot(lightDir1, normal));
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float lightAccum = min(1.0, (light0 + light1) * MINECRAFT_LIGHT_POWER + MINECRAFT_AMBIENT_LIGHT);
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return vec4(color.rgb * lightAccum, color.a);
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}
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