Ejemplo n.º 1
0
            public DataForDilation(ProbeReferenceVolume.Cell cell, float defaultThreshold)
            {
                this.cell = cell;

                int probeCount = cell.probePositions.Length;

                positionBuffer     = new ComputeBuffer(probeCount, System.Runtime.InteropServices.Marshal.SizeOf <Vector3>());
                outputProbes       = new ComputeBuffer(probeCount, System.Runtime.InteropServices.Marshal.SizeOf <DilatedProbe>());
                needDilatingBuffer = new ComputeBuffer(probeCount, sizeof(int));

                // Init with pre-dilated SH so we don't need to re-fill from sampled data from texture (that might be less precise).
                dilatedProbes = new DilatedProbe[probeCount];
                int[] needDilating = new int[probeCount];

                for (int i = 0; i < probeCount; ++i)
                {
                    dilatedProbes[i].FromSphericalHarmonicsShaderConstants(cell, i);
                    needDilating[i] = s_CustomDilationThresh.ContainsKey(i) ?
                                      (cell.validity[i] > s_CustomDilationThresh[i] ? 1 : 0) : (cell.validity[i] > defaultThreshold ? 1 : 0);
                }

                outputProbes.SetData(dilatedProbes);
                positionBuffer.SetData(cell.probePositions);
                needDilatingBuffer.SetData(needDilating);
            }
Ejemplo n.º 2
0
            internal void ToSphericalHarmonicsShaderConstants(ProbeReferenceVolume.Cell cell, int probeIdx)
            {
                var sh = new SphericalHarmonicsL2();

                ToSphericalHarmonicsL2(ref sh);

                WriteToShaderCoeffsL0L1(sh, cell.bakingScenario.shL0L1RxData, cell.bakingScenario.shL1GL1RyData, cell.bakingScenario.shL1BL1RzData, probeIdx * 4);

                if (cell.shBands == ProbeVolumeSHBands.SphericalHarmonicsL2)
                {
                    WriteToShaderCoeffsL2(sh, cell.bakingScenario.shL2Data_0, cell.bakingScenario.shL2Data_1, cell.bakingScenario.shL2Data_2, cell.bakingScenario.shL2Data_3, probeIdx * 4);
                }
            }
Ejemplo n.º 3
0
        static void PerformDilation(ProbeReferenceVolume.Cell cell, ProbeDilationSettings settings)
        {
            InitDilationShaders();

            DataForDilation data = new DataForDilation(cell, settings.dilationValidityThreshold);

            var cmd = CommandBufferPool.Get("Cell Dilation");

            cmd.SetComputeBufferParam(dilationShader, dilationKernel, _ProbePositionsBuffer, data.positionBuffer);
            cmd.SetComputeBufferParam(dilationShader, dilationKernel, _OutputProbes, data.outputProbes);
            cmd.SetComputeBufferParam(dilationShader, dilationKernel, _NeedDilating, data.needDilatingBuffer);

            int probeCount = cell.probePositions.Length;

            cmd.SetComputeVectorParam(dilationShader, _DilationParameters, new Vector4(probeCount, settings.dilationValidityThreshold, settings.dilationDistance, ProbeReferenceVolume.instance.MinBrickSize()));
            cmd.SetComputeVectorParam(dilationShader, _DilationParameters2, new Vector4(settings.squaredDistWeighting ? 1 : 0, 0, 0, 0));

            var refVolume = ProbeReferenceVolume.instance;

            ProbeReferenceVolume.RuntimeResources rr = refVolume.GetRuntimeResources();

            bool validResources = rr.index != null && rr.L0_L1rx != null && rr.L1_G_ry != null && rr.L1_B_rz != null;

            if (validResources)
            {
                cmd.SetGlobalBuffer(_APVResIndex, rr.index);
                cmd.SetGlobalBuffer(_APVResCellIndices, rr.cellIndices);

                cmd.SetGlobalTexture(_APVResL0_L1Rx, rr.L0_L1rx);
                cmd.SetGlobalTexture(_APVResL1G_L1Ry, rr.L1_G_ry);
                cmd.SetGlobalTexture(_APVResL1B_L1Rz, rr.L1_B_rz);

                cmd.SetGlobalTexture(_APVResL2_0, rr.L2_0);
                cmd.SetGlobalTexture(_APVResL2_1, rr.L2_1);
                cmd.SetGlobalTexture(_APVResL2_2, rr.L2_2);
                cmd.SetGlobalTexture(_APVResL2_3, rr.L2_3);
            }

            ProbeVolumeShadingParameters parameters;

            parameters.normalBias = 0;
            parameters.viewBias   = 0;
            parameters.scaleBiasByMinDistanceBetweenProbes = false;
            parameters.samplingNoise               = 0;
            parameters.weight                      = 1f;
            parameters.leakReductionMode           = APVLeakReductionMode.None;
            parameters.occlusionWeightContribution = 0.0f;
            parameters.minValidNormalWeight        = 0.0f;
            parameters.frameIndexForNoise          = 0;
            parameters.reflNormalizationLowerClamp = 0.1f;
            parameters.reflNormalizationUpperClamp = 1.0f;
            ProbeReferenceVolume.instance.UpdateConstantBuffer(cmd, parameters);


            int groupCount = (probeCount + 63) / 64;

            cmd.DispatchCompute(dilationShader, dilationKernel, groupCount, 1, 1);

            cmd.WaitAllAsyncReadbackRequests();
            Graphics.ExecuteCommandBuffer(cmd);

            data.ExtractDilatedProbes();
            data.Dispose();
        }