mirror of
https://github.com/MihailRis/voxelcore.git
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49 lines
1.4 KiB
GLSL
49 lines
1.4 KiB
GLSL
#include <shadows>
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#include <fog>
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#define CLOUDS_FOG_FACTOR_MUL 0.3f
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#define CLOUDS_FOG_CURVE_MUL 0.4f
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#define COLOR_TEMPERATURE_COMPENSATION 1.12f
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vec4 effect() {
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vec4 pos = texture(u_position, v_uv);
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float light = 1.0;
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#ifdef ENABLE_SSAO
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light = 0.0;
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float z = pos.z;
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for (int y = -2; y <= 2; y++) {
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for (int x = -2; x <= 2; x++) {
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vec2 offset = vec2(x, y) / u_screenSize;
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light += texture(u_ssao, v_uv + offset * 2.0).r;
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}
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}
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light /= 24.0;
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#endif // ENABLE_SSAO
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vec4 modelpos = u_inverseView * pos;
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vec3 normal = transpose(mat3(u_view)) * texture(u_normal, v_uv).xyz;
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vec3 dir = modelpos.xyz - u_cameraPos;
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float emission = texture(u_emission, v_uv).r;
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float rg = 1.0;
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#ifdef ENABLE_SHADOWS
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float shadow_mul = calc_shadow(modelpos, normal, length(pos));
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light *= shadow_mul;
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rg *= min(1.0, shadow_mul + emission) + COLOR_TEMPERATURE_COMPENSATION;
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light *= 2.0;
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#endif
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light = max(light, emission);
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light = pow(light, u_gamma);
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vec3 fogColor = texture(u_skybox, dir).rgb;
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float fog = calc_fog(
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length(u_view * vec4((modelpos.xyz - u_cameraPos) * FOG_POS_SCALE, 0.0)) / 256.0,
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mix(1.0, CLOUDS_FOG_FACTOR_MUL, emission),
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mix(1.0, CLOUDS_FOG_CURVE_MUL, emission)
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);
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return vec4(mix(texture(u_screen, v_uv).rgb * mix(1.0, light, 1.0) * vec3(rg, 0.5 + rg * 0.5, 1.0), fogColor, fog), 1.0);
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}
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