65 lines
2.3 KiB
GLSL
65 lines
2.3 KiB
GLSL
#include "/lib/colors/lightAndAmbientColors.glsl"
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vec3 beamCol = normalize(ColorBeam) * 3.0 * (2.5 - 1.0 * vlFactor) * OVERWORLD_BEAMS_INTENSITY;
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vec2 wind = vec2(syncedTime * 0.0056);
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float BeamNoise(vec2 planeCoord, vec2 wind) {
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float noise = texture2DLod(noisetex, planeCoord * 0.275 - wind * 0.0625, 0.0).b;
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noise+= texture2DLod(noisetex, planeCoord * 0.34375 + wind * 0.0575, 0.0).b * 10.0;
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return noise;
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}
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vec4 DrawOverworldBeams(float VdotU, vec3 playerPos, vec3 viewPos) {
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float visibility = 1.0 - sunVisibility - maxBlindnessDarkness;
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#if OVERWORLD_BEAMS_CONDITION == 0
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visibility -= moonPhase;
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#endif
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if (visibility > 0.0) {
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vec3 result = vec3(0.0);
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int sampleCount = 8;
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float VdotUM = 1.0 - VdotU * VdotU;
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float VdotUM2 = VdotUM + smoothstep1(pow2(pow2(1.0 - abs(VdotU)))) * 0.2;
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vec4 beams = vec4(0.0);
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float gradientMix = 1.0;
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#ifdef AURORA_INFLUENCE
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beamCol = getAuroraAmbientColor(beamCol, viewPos, 1.0, AURORA_CLOUD_INFLUENCE_INTENSITY, 0.85) * OVERWORLD_BEAMS_INTENSITY;
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#endif
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for(int i = 0; i < sampleCount; i++) {
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vec2 planeCoord = (playerPos.xz + cameraPosition.xz) * (1.0 + i * 6.0 / sampleCount) * 0.0014;
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float noise = BeamNoise(planeCoord, wind);
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noise = max(0.92 - 1.0 / abs(noise - (2.5 + VdotUM * 2.0)), 0.0) * 2.5;
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if (noise > 0.0) {
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noise *= 0.55;
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float fireNoise = texture2DLod(noisetex, abs(planeCoord * 0.2) - wind, 0.0).b;
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noise *= 0.5 * fireNoise + 0.75;
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noise = noise * noise * 3.0 / sampleCount;
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noise *= mix(1.0, sqrt3(VdotUM2), 0.25);
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vec3 beamColor = beamCol;
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beamColor *= gradientMix / sampleCount;
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noise *= exp2(-6.0 * i / float(sampleCount));
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beams += vec4(noise * beamColor, noise);
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}
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gradientMix += 1.0;
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}
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beams.rgb *= beams.a * beams.a * beams.a * 5000.0;
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beams.rgb *= sqrt(beams.rgb);
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result = sqrt(beams.rgb);
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if(any(isnan(result.rgb))) result.rgb = vec3(0.0);
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return vec4(result * visibility / sampleCount, beams.a);
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}
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return vec4(1.0);
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}
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