70 lines
2.6 KiB
GLSL
70 lines
2.6 KiB
GLSL
vec2 darkOutlineOffsets[12] = vec2[12](
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vec2( 1.0,0.0),
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vec2(-1.0,1.0),
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vec2( 0.0,1.0),
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vec2( 1.0,1.0),
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vec2(-2.0,2.0),
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vec2(-1.0,2.0),
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vec2( 0.0,2.0),
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vec2( 1.0,2.0),
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vec2( 2.0,2.0),
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vec2(-2.0,1.0),
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vec2( 2.0,1.0),
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vec2( 2.0,0.0)
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);
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void DoDarkOutline(inout vec3 color, float z0, float pixelFade, vec3 playerPos, float minecraft_far) {
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float outlineFade = 1.0;
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#ifdef DISTANT_HORIZONS
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float horizontalDistance = length(playerPos.xz);
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float verticalDistance = abs(playerPos.y);
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float distanceToCamera = max(horizontalDistance, verticalDistance);
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float fadeStart = minecraft_far * 0.7;
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float fadeEnd = minecraft_far * 0.9;
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if (fadeStart >= fadeEnd) {
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fadeEnd = fadeStart + max(1.0, minecraft_far * 0.01);
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}
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outlineFade = (1.0 - smoothstep(fadeStart, fadeEnd, distanceToCamera)) * pixelFade;
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if (outlineFade < 0.001) return;
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#endif
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vec2 scale = vec2(1.0 / view);
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float outline = 1.0;
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float z = GetLinearDepth(z0) * far * 2.0;
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float minZ = 1.0, sampleZA = 0.0, sampleZB = 0.0;
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#if DARK_OUTLINE_THICKNESS == 1
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int sampleCount = 4;
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#elif DARK_OUTLINE_THICKNESS == 2
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int sampleCount = 12;
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#endif
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for (int i = 0; i < sampleCount; i++) {
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vec2 offset = scale * darkOutlineOffsets[i];
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sampleZA = texture2D(depthtex0, texCoord + offset).r;
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sampleZB = texture2D(depthtex0, texCoord - offset).r;
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float sampleZsum = GetLinearDepth(sampleZA) + GetLinearDepth(sampleZB);
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outline *= clamp(1.0 - (z - sampleZsum * far), 0.0, 1.0);
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minZ = min(minZ, min(sampleZA, sampleZB));
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}
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outline = mix(1.0, outline, outlineFade);
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if (outline < 0.909091) {
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vec4 viewPos = gbufferProjectionInverse * (vec4(texCoord, minZ, 1.0) * 2.0 - 1.0);
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viewPos /= viewPos.w;
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float lViewPos = length(viewPos.xyz);
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vec3 playerPos = ViewToPlayer(viewPos.xyz);
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vec3 nViewPos = normalize(viewPos.xyz);
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float VdotU = dot(nViewPos, upVec);
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float VdotS = dot(nViewPos, sunVec);
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vec3 newColor = vec3(0.0);
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color = mix(color, newColor, 1.0 - outline * 1.1);
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}
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}
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