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Add dynamic step size for DH noise

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Xonk
2025-03-09 22:09:50 -04:00
parent bf91dbc88f
commit 858d005eaf
1 changed files with 12 additions and 1 deletions
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13
shaders/dimensions/DH_solid.fsh
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@ -125,9 +125,20 @@ vec4 applyNoise(in vec4 fragColor, const in vec3 viewPos, const in float viewDis
float lum = (fragColor.r + fragColor.g + fragColor.b) / 3.0;
noiseAmplification = (1.0 - pow(lum * 2.0 - 1.0, 2.0)) * noiseAmplification; // Lessen the effect on depending on how dark the object is, equasion for this is -(2x-1)^{2}+1
noiseAmplification *= fragColor.a; // The effect would lessen on transparent objects
// Mikis idea. make it such that you can control the step amount as distance increases out from where vanilla chunks end.
// ideally, close = higher steps and far = lower steps
float highestSteps = 16.0;
float lowestSteps = 2.0;
float transitionLength = 16.0 * 16.0; // distance it takes to reach the lowest steps from the highest. measured in meters/blocks.
float transitionGradient = clamp((length(viewPos - cameraPosition) - (far+32.0)) / transitionLength,0.0,1.0);
transitionGradient = 1.0-pow(1.0-transitionGradient,2.0); // make the gradient appear smoother and less sudden when approaching low steps.
int dynamicNoiseSteps = int(mix(highestSteps, lowestSteps, transitionGradient));
// Random value for each position
float randomValue = rand(quantize(viewPos, noiseSteps))
float randomValue = rand(quantize(viewPos, dynamicNoiseSteps))
* 2.0 * noiseAmplification - noiseAmplification;
// Modifies the color