47 lines
2.1 KiB
GLSL
47 lines
2.1 KiB
GLSL
vec3 DrawEndFlash(vec3 nViewPos, float VdotU, float dither) {
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vec3 worldEndFlashPosition = mat3(gbufferModelViewInverse) * endFlashPosition;
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worldEndFlashPosition = normalize(worldEndFlashPosition);
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vec3 nViewPosWorld = mat3(gbufferModelViewInverse) * nViewPos;
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nViewPosWorld = normalize(nViewPosWorld);
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vec3 horizontalEndPos = normalize(vec3(worldEndFlashPosition.x, 0.0, worldEndFlashPosition.z));
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vec3 horizontalViewPos = normalize(vec3(nViewPosWorld.x, 0.0, nViewPosWorld.z));
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float horizDirFactor = pow(max0(dot(horizontalEndPos, horizontalViewPos)), 0.2);
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float dirFactor = pow(max0(dot(worldEndFlashPosition, nViewPosWorld)), 10.0);
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float verticalDist = abs(nViewPosWorld.y - worldEndFlashPosition.y);
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float verticalFalloff = exp(-pow2(verticalDist * 5.5));
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float endFlashFactor = endFlashIntensity * dirFactor * verticalFalloff;
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if (endFlashFactor < 0.001) return vec3(0.0);
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float time = frameTimeCounter * 0.05;
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float pulse = sin(time * 3.0) * 0.5 + 0.5;
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vec2 noiseCoord = horizontalViewPos.xz * 0.5 + time * 0.05;
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float noise1 = texture2DLod(noisetex, noiseCoord, 0).r;
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float noise2 = texture2DLod(noisetex, noiseCoord * 2.7 - time * 0.17, 0).g;
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float noise3 = texture2DLod(noisetex, noiseCoord * 0.5 + time * 0.05, 0).b;
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float rayFactor = pow(noise1 * noise2, 1.5) * 2.0;
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float stripeFactor = pow(horizDirFactor, 2.0 + 4.0 * pulse);
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// Inner core and wave animations
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float radius = 1.0 + sin(time * 2.0) * 0.1;
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float distFromCenter = length(dot(horizontalEndPos, horizontalViewPos));
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float waveFront = smoothstep(0.0, 0.2, 1.0 - abs(distFromCenter - radius) * (4.0 + pulse * 4.0));
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float core = pow(horizDirFactor, 1.0 + pulse * 2.0) * (1.0 + noise3 * 0.5);
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float flashIntensity = mix(core, waveFront, 0.5) * endFlashFactor * (0.6 + rayFactor * 0.8);
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flashIntensity *= stripeFactor;
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vec3 orangeColor = mix(endOrangeCol, vec3(1.0), 0.3) * (1.2 + noise2 * 1.3);
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vec3 finalColor = saturateColors(orangeColor, 0.8) * flashIntensity * 0.7;
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return finalColor;
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}
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