コード例 #1
0
ファイル: NoiseGenerator.cs プロジェクト: vegechick123/Clouds
    public void UpdateNoise()
    {
        ValidateParamaters();
        CreateTexture(ref shapeTexture, shapeResolution, shapeNoiseName);
        CreateTexture(ref detailTexture, detailResolution, detailNoiseName);

        if (updateNoise && noiseCompute)
        {
            var timer = System.Diagnostics.Stopwatch.StartNew();

            updateNoise = false;
            WorleyNoiseSettings activeSettings = ActiveSettings;
            if (activeSettings == null)
            {
                return;
            }

            buffersToRelease = new List <ComputeBuffer> ();

            int activeTextureResolution = ActiveTexture.width;

            // Set values:
            noiseCompute.SetFloat("persistence", activeSettings.persistence);
            noiseCompute.SetInt("resolution", activeTextureResolution);
            noiseCompute.SetVector("channelMask", ChannelMask);

            // Set noise gen kernel data:
            noiseCompute.SetTexture(0, "Result", ActiveTexture);
            var minMaxBuffer = CreateBuffer(new int[] { int.MaxValue, 0 }, sizeof(int), "minMax", 0);
            UpdateWorley(ActiveSettings);
            noiseCompute.SetTexture(0, "Result", ActiveTexture);
            //var noiseValuesBuffer = CreateBuffer (activeNoiseValues, sizeof (float) * 4, "values");

            // Dispatch noise gen kernel
            int numThreadGroups = Mathf.CeilToInt(activeTextureResolution / (float)computeThreadGroupSize);
            noiseCompute.Dispatch(0, numThreadGroups, numThreadGroups, numThreadGroups);

            // Set normalization kernel data:
            noiseCompute.SetBuffer(1, "minMax", minMaxBuffer);
            noiseCompute.SetTexture(1, "Result", ActiveTexture);
            // Dispatch normalization kernel
            noiseCompute.Dispatch(1, numThreadGroups, numThreadGroups, numThreadGroups);

            if (logComputeTime)
            {
                // Get minmax data just to force main thread to wait until compute shaders are finished.
                // This allows us to measure the execution time.
                var minMax = new int[2];
                minMaxBuffer.GetData(minMax);

                Debug.Log($"Noise Generation: {timer.ElapsedMilliseconds}ms");
            }

            // Release buffers
            foreach (var buffer in buffersToRelease)
            {
                buffer.Release();
            }
        }
    }
コード例 #2
0
ファイル: NoiseGenerator.cs プロジェクト: vegechick123/Clouds
    void UpdateWorley(WorleyNoiseSettings settings)
    {
        var prng = new System.Random(settings.seed);

        CreateWorleyPointsBuffer(prng, settings.numDivisionsA, "pointsA");
        CreateWorleyPointsBuffer(prng, settings.numDivisionsB, "pointsB");
        CreateWorleyPointsBuffer(prng, settings.numDivisionsC, "pointsC");

        noiseCompute.SetInt("numCellsA", settings.numDivisionsA);
        noiseCompute.SetInt("numCellsB", settings.numDivisionsB);
        noiseCompute.SetInt("numCellsC", settings.numDivisionsC);
        noiseCompute.SetBool("invertNoise", settings.invert);
        noiseCompute.SetInt("tile", settings.tile);
    }