45 lines
1.5 KiB
C#
45 lines
1.5 KiB
C#
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.Experimental.Rendering;
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[CreateAssetMenu (menuName = "Celestial Body/Textures/Noise")]
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public class NoiseGenerator : TextureGenerator {
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public SimpleNoiseSettings noiseSettings;
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public SimpleNoiseSettings warpNoiseSettings;
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[Range (0, 1)]
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public float valueFloor;
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public bool normalize;
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ComputeBuffer minMaxBuffer;
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protected override void Run () {
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var prng = new PRNG (seed);
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var offset = new Vector4 (prng.Value (), prng.Value (), prng.Value (), prng.Value ()) * 10;
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ComputeHelper.CreateStructuredBuffer<int> (ref minMaxBuffer, 2);
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minMaxBuffer.SetData (new int[] { int.MaxValue, 0 });
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compute.SetBuffer (0, "minMax", minMaxBuffer);
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compute.SetBuffer (1, "minMax", minMaxBuffer);
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int threadGroupSize = ComputeHelper.GetThreadGroupSizes (compute, 0).x;
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int numThreadGroups = Mathf.CeilToInt ((float) textureSize / threadGroupSize);
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compute.SetVector ("offset", offset);
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compute.SetTexture (0, "Result", renderTexture);
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noiseSettings.SetComputeValues (compute, prng, "_simple");
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warpNoiseSettings.SetComputeValues (compute, prng, "_warp");
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compute.SetInt ("resolution", (int) textureSize);
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compute.SetFloat ("valueFloor", valueFloor);
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compute.Dispatch (0, numThreadGroups, numThreadGroups, 1);
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// Normalize
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if (normalize) {
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compute.SetTexture (1, "Result", renderTexture);
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compute.Dispatch (1, numThreadGroups, numThreadGroups, 1);
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}
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ComputeHelper.Release (minMaxBuffer);
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}
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}
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