using System;
using System.Collections.Generic;
using System.Reflection;
using AwesomeTechnologies.Utility.Culling;
using UnityEngine;
using UnityEngine.Profiling;
using UnityEngine.Rendering;
namespace AwesomeTechnologies.VegetationSystem
{
public static class GeometryUtilityAllocFree
{
public static Plane[] FrustrumPlanes = new Plane[6];
private static readonly Action<Plane[], Matrix4x4> InternalExtractPlanes =
(Action<Plane[], Matrix4x4>)Delegate.CreateDelegate(
typeof(Action<Plane[], Matrix4x4>),
// ReSharper disable once AssignNullToNotNullAttribute
typeof(GeometryUtility).GetMethod("Internal_ExtractPlanes",
BindingFlags.Static | BindingFlags.NonPublic));
public static void CalculateFrustrumPlanes(Camera camera)
{
InternalExtractPlanes(FrustrumPlanes, camera.projectionMatrix * camera.worldToCameraMatrix);
}
}
public partial class VegetationSystemPro
{
private void SetFrustumCullingPlanes(Camera selectedCamera)
{
GeometryUtilityAllocFree.CalculateFrustrumPlanes(selectedCamera);
Vector4 cameraFrustumPlane0 = new Vector4(GeometryUtilityAllocFree.FrustrumPlanes[0].normal.x, GeometryUtilityAllocFree.FrustrumPlanes[0].normal.y, GeometryUtilityAllocFree.FrustrumPlanes[0].normal.z,
GeometryUtilityAllocFree.FrustrumPlanes[0].distance);
Vector4 cameraFrustumPlane1 = new Vector4(GeometryUtilityAllocFree.FrustrumPlanes[1].normal.x, GeometryUtilityAllocFree.FrustrumPlanes[1].normal.y, GeometryUtilityAllocFree.FrustrumPlanes[1].normal.z,
GeometryUtilityAllocFree.FrustrumPlanes[1].distance);
Vector4 cameraFrustumPlane2 = new Vector4(GeometryUtilityAllocFree.FrustrumPlanes[2].normal.x, GeometryUtilityAllocFree.FrustrumPlanes[2].normal.y, GeometryUtilityAllocFree.FrustrumPlanes[2].normal.z,
GeometryUtilityAllocFree.FrustrumPlanes[2].distance);
Vector4 cameraFrustumPlane3 = new Vector4(GeometryUtilityAllocFree.FrustrumPlanes[3].normal.x, GeometryUtilityAllocFree.FrustrumPlanes[3].normal.y, GeometryUtilityAllocFree.FrustrumPlanes[3].normal.z,
GeometryUtilityAllocFree.FrustrumPlanes[3].distance);
Vector4 cameraFrustumPlane4 = new Vector4(GeometryUtilityAllocFree.FrustrumPlanes[4].normal.x, GeometryUtilityAllocFree.FrustrumPlanes[4].normal.y, GeometryUtilityAllocFree.FrustrumPlanes[4].normal.z,
GeometryUtilityAllocFree.FrustrumPlanes[4].distance);
Vector4 cameraFrustumPlane5 = new Vector4(GeometryUtilityAllocFree.FrustrumPlanes[5].normal.x, GeometryUtilityAllocFree.FrustrumPlanes[5].normal.y, GeometryUtilityAllocFree.FrustrumPlanes[5].normal.z,
GeometryUtilityAllocFree.FrustrumPlanes[5].distance);
FrusumMatrixShader.SetVector(_cameraFrustumPlan0, cameraFrustumPlane0);
FrusumMatrixShader.SetVector(_cameraFrustumPlan1, cameraFrustumPlane1);
FrusumMatrixShader.SetVector(_cameraFrustumPlan2, cameraFrustumPlane2);
FrusumMatrixShader.SetVector(_cameraFrustumPlan3, cameraFrustumPlane3);
FrusumMatrixShader.SetVector(_cameraFrustumPlan4, cameraFrustumPlane4);
FrusumMatrixShader.SetVector(_cameraFrustumPlan5, cameraFrustumPlane5);
Vector3 worldSpaceCameraPosition = selectedCamera.transform.position;
Vector4 worldSpaceCameraPos = new Vector4(worldSpaceCameraPosition.x, worldSpaceCameraPosition.y, worldSpaceCameraPosition.z, 1);
//TODO change to ID on setVector
FrusumMatrixShader.SetVector("_WorldSpaceCameraPos", worldSpaceCameraPos);
}
void SetupComputeShaders()
{
//_dummyMaskTexture = new Texture2D(2, 2);
_dummyComputeBuffer = new ComputeBuffer(1, (16 * 4) + 16, ComputeBufferType.Default); // *2
MergeBufferShader = (ComputeShader)Resources.Load("MergeInstancedIndirectBuffers");
MergeBufferKernelHandle = MergeBufferShader.FindKernel("MergeInstancedIndirectBuffers");
FrusumMatrixShader = (ComputeShader)Resources.Load("GPUFrustumCulling");
FrustumKernelHandle = FrusumMatrixShader.FindKernel("GPUFrustumCulling");
_mergeBufferID = Shader.PropertyToID("MergeBuffer");
_floatingOriginOffsetID = Shader.PropertyToID("_FloatingOriginOffset");
_mergeSourceBuffer0ID = Shader.PropertyToID("MergeSourceBuffer0");
_mergeSourceBuffer1ID = Shader.PropertyToID("MergeSourceBuffer1");
_mergeSourceBuffer2ID = Shader.PropertyToID("MergeSourceBuffer2");
_mergeSourceBuffer3ID = Shader.PropertyToID("MergeSourceBuffer3");
_mergeSourceBuffer4ID = Shader.PropertyToID("MergeSourceBuffer4");
_mergeSourceBuffer5ID = Shader.PropertyToID("MergeSourceBuffer5");
_mergeSourceBuffer6ID = Shader.PropertyToID("MergeSourceBuffer6");
_mergeSourceBuffer7ID = Shader.PropertyToID("MergeSourceBuffer7");
_mergeSourceBuffer8ID = Shader.PropertyToID("MergeSourceBuffer8");
_mergeSourceBuffer9ID = Shader.PropertyToID("MergeSourceBuffer9");
_mergeSourceBuffer10ID = Shader.PropertyToID("MergeSourceBuffer10");
_mergeSourceBuffer11ID = Shader.PropertyToID("MergeSourceBuffer11");
_mergeSourceBuffer12ID = Shader.PropertyToID("MergeSourceBuffer12");
_mergeSourceBuffer13ID = Shader.PropertyToID("MergeSourceBuffer13");
_mergeSourceBuffer14ID = Shader.PropertyToID("MergeSourceBuffer14");
_mergeInstanceCount0ID = Shader.PropertyToID("MergeSourceBufferCount0");
_mergeInstanceCount1ID = Shader.PropertyToID("MergeSourceBufferCount1");
_mergeInstanceCount2ID = Shader.PropertyToID("MergeSourceBufferCount2");
_mergeInstanceCount3ID = Shader.PropertyToID("MergeSourceBufferCount3");
_mergeInstanceCount4ID = Shader.PropertyToID("MergeSourceBufferCount4");
_mergeInstanceCount5ID = Shader.PropertyToID("MergeSourceBufferCount5");
_mergeInstanceCount6ID = Shader.PropertyToID("MergeSourceBufferCount6");
_mergeInstanceCount7ID = Shader.PropertyToID("MergeSourceBufferCount7");
_mergeInstanceCount8ID = Shader.PropertyToID("MergeSourceBufferCount8");
_mergeInstanceCount9ID = Shader.PropertyToID("MergeSourceBufferCount9");
_mergeInstanceCount10ID = Shader.PropertyToID("MergeSourceBufferCount10");
_mergeInstanceCount11ID = Shader.PropertyToID("MergeSourceBufferCount11");
_mergeInstanceCount12ID = Shader.PropertyToID("MergeSourceBufferCount12");
_mergeInstanceCount13ID = Shader.PropertyToID("MergeSourceBufferCount13");
_mergeInstanceCount14ID = Shader.PropertyToID("MergeSourceBufferCount14");
_cameraFrustumPlan0 = Shader.PropertyToID("_VS_CameraFrustumPlane0");
_cameraFrustumPlan1 = Shader.PropertyToID("_VS_CameraFrustumPlane1");
_cameraFrustumPlan2 = Shader.PropertyToID("_VS_CameraFrustumPlane2");
_cameraFrustumPlan3 = Shader.PropertyToID("_VS_CameraFrustumPlane3");
_cameraFrustumPlan4 = Shader.PropertyToID("_VS_CameraFrustumPlane4");
_cameraFrustumPlan5 = Shader.PropertyToID("_VS_CameraFrustumPlane5");
_instanceCountID = Shader.PropertyToID("_InstanceCount");
_sourceBufferID = Shader.PropertyToID("SourceShaderDataBuffer");
_visibleBufferLod0ID = Shader.PropertyToID("VisibleBufferLOD0");
_visibleBufferLod1ID = Shader.PropertyToID("VisibleBufferLOD1");
_visibleBufferLod2ID = Shader.PropertyToID("VisibleBufferLOD2");
_visibleBufferLod3ID = Shader.PropertyToID("VisibleBufferLOD3");
_shadowBufferLod0ID = Shader.PropertyToID("ShadowBufferLOD0");
_shadowBufferLod1ID = Shader.PropertyToID("ShadowBufferLOD1");
_shadowBufferLod2ID = Shader.PropertyToID("ShadowBufferLOD2");
_shadowBufferLod3ID = Shader.PropertyToID("ShadowBufferLOD3");
_lightDirection = Shader.PropertyToID("_LightDirection");
_planeOrigin = Shader.PropertyToID("_PlaneOrigin");
_boundsSize = Shader.PropertyToID("_BoundsSize");
_cullFarStartID = Shader.PropertyToID("_CullFarStart");
_visibleShaderDataBufferID = Shader.PropertyToID("VisibleShaderDataBuffer");
_indirectShaderDataBufferID = Shader.PropertyToID("IndirectShaderDataBuffer");
_useLodsID = Shader.PropertyToID("UseLODs");
_noFrustumCullingID = Shader.PropertyToID("NoFrustumCulling");
_shadowCullingID = Shader.PropertyToID("ShadowCulling");
_boundingSphereRadiusID = Shader.PropertyToID("_BoundingSphereRadius");
_lod1Distance = Shader.PropertyToID("_LOD1Distance");
_lod2Distance = Shader.PropertyToID("_LOD2Distance");
_lod3Distance = Shader.PropertyToID("_LOD3Distance");
_lodFactor = Shader.PropertyToID("_LODFactor");
_lodBias = Shader.PropertyToID("_LODBias");
_lodFadeDistance = Shader.PropertyToID("_LODFadeDistance");
_lodCount = Shader.PropertyToID("_LODCount");
}
void DisposeComputeShaders()
{
_dummyComputeBuffer?.Dispose();
}
void DrawCellsIndirectComputeShader()
{
Profiler.BeginSample("Draw instanced indirect vegetation");
float lodBias = QualitySettings.lodBias * VegetationSettings.LODDistanceFactor;
Vector4 floatingOriginOffsetVector4 = new Vector4(FloatingOriginOffset.x,FloatingOriginOffset.y,FloatingOriginOffset.z,0);
Vector3 sunLightDirection = SunDirectionalLight ? SunDirectionalLight.transform.forward : new Vector3(0, 0, 0);
float minBoundsHeight = VegetationSystemBounds.center.y - VegetationSystemBounds.extents.y;
Vector3 planeOrigin = new Vector3(0, minBoundsHeight, 0);
bool shadowCulling = (SunDirectionalLight != null);
for (int i = 0; i <= VegetationStudioCameraList.Count - 1; i++)
{
if (!VegetationStudioCameraList[i].Enabled) continue;
if (VegetationStudioCameraList[i].RenderBillboardsOnly) continue;
SetFrustumCullingPlanes(VegetationStudioCameraList[i].SelectedCamera);
var targetCamera = VegetationStudioCameraList[i].RenderDirectToCamera
? VegetationStudioCameraList[i].SelectedCamera
: null;
for (int j = 0; j <= VegetationPackageProList.Count - 1; j++)
{
for (int k = 0; k <= VegetationPackageProList[j].VegetationInfoList.Count - 1; k++)
{
VegetationItemInfoPro vegetationItemInfo = VegetationPackageProList[j].VegetationInfoList[k];
if (vegetationItemInfo.VegetationRenderMode != VegetationRenderMode.InstancedIndirect) continue;
VegetationItemModelInfo vegetationItemModelInfo =
VegetationPackageProModelsList[j].VegetationItemModelList[k];
float vegetationItemCullDistance;
float renderDistanceFactor =vegetationItemModelInfo.VegetationItemInfo.RenderDistanceFactor;
if (VegetationSettings.DisableRenderDistanceFactor) renderDistanceFactor = 1;
//if (vegetationItemModelInfo.DistanceBand == 0)
if (vegetationItemModelInfo.VegetationItemInfo.VegetationType == VegetationType.Tree || vegetationItemModelInfo.VegetationItemInfo.VegetationType == VegetationType.LargeObjects)
{
vegetationItemCullDistance = VegetationSettings.GetTreeDistance() * renderDistanceFactor;
}
else
{
vegetationItemCullDistance = VegetationSettings.GetVegetationDistance() * renderDistanceFactor;
}
ShadowCastingMode shadowCastingMode =
VegetationSettings.GetShadowCastingMode(vegetationItemInfo.VegetationType);
if (vegetationItemInfo.DisableShadows)
{
shadowCastingMode = ShadowCastingMode.Off;
}
bool useShadowCulling = shadowCulling && shadowCastingMode == ShadowCastingMode.On;
useShadowCulling = useShadowCulling && vegetationItemModelInfo.DistanceBand == 1;
LayerMask layer = VegetationSettings.GetLayer(vegetationItemInfo.VegetationType);
int totalInstanceCount = 0;
_hasBufferList.Clear();
for (int l = 0;
l <= VegetationStudioCameraList[i].JobCullingGroup.VisibleCellIndexList.Length - 1;
l++)
{
int potentialVisibleCellIndex =
VegetationStudioCameraList[i].JobCullingGroup.VisibleCellIndexList[l];
VegetationCell vegetationCell = VegetationStudioCameraList[i]
.PotentialVisibleVegetationCellList[potentialVisibleCellIndex];
BoundingSphereInfo boundingSphereInfo = VegetationStudioCameraList[i]
.GetBoundingSphereInfo(potentialVisibleCellIndex);
int vegetationItemDistanceBand = vegetationItemModelInfo.DistanceBand;
if (boundingSphereInfo.CurrentDistanceBand > vegetationItemDistanceBand)
{
continue;
}
if (vegetationCell.VegetationPackageInstancesList[j].VegetationItemMatrixList[k].Length == 0)
{
continue;
}
ComputeBufferInfo computeBufferInfo = vegetationCell.VegetationPackageInstancesList[j]
.VegetationItemComputeBufferList[k];
if (!computeBufferInfo.Created)
{
continue;
}
_hasBufferList.Add(vegetationCell);
}
if (_hasBufferList.Count == 0) continue;
int buffercount = 15;
for (int m = 0; m <= _hasBufferList.Count - 1; m++)
{
totalInstanceCount += _hasBufferList[m].VegetationPackageInstancesList[j]
.VegetationItemMatrixList[k].Length;
}
if (totalInstanceCount == 0) continue;
CameraComputeBuffers cameraComputeBuffers = vegetationItemModelInfo.CameraComputeBufferList[i];
if (VegetationRenderSettings.EnableSinglePassInstancedVR)
{
if (totalInstanceCount * 2 > cameraComputeBuffers.MergeBuffer.count)
{
cameraComputeBuffers.UpdateComputeBufferSize(totalInstanceCount * 2+ 5000);
}
}
else
{
if (totalInstanceCount > cameraComputeBuffers.MergeBuffer.count)
{
cameraComputeBuffers.UpdateComputeBufferSize(totalInstanceCount + 5000);
}
}
cameraComputeBuffers.MergeBuffer.SetCounterValue(0);
MergeBufferShader.SetBuffer(MergeBufferKernelHandle, _mergeBufferID,
cameraComputeBuffers.MergeBuffer);
for (int m = 0; m <= _hasBufferList.Count - 1; m += buffercount)
{
int instanceCount0 = _hasBufferList[m].VegetationPackageInstancesList[j]
.VegetationItemMatrixList[k].Length;
for (int n = 1; n <= buffercount - 1; n++)
{
if (m + n < _hasBufferList.Count)
{
int tempInstanceCount = _hasBufferList[m + n].VegetationPackageInstancesList[j]
.VegetationItemMatrixList[k].Length;
if (tempInstanceCount > instanceCount0) instanceCount0 = tempInstanceCount;
}
}
// ReSharper disable once RedundantCast
int threadGroups = Mathf.CeilToInt((float)instanceCount0 / 32f);
if (threadGroups == 0) continue;
SetComputeShaderBuffer(_mergeSourceBuffer0ID, _mergeInstanceCount0ID, m, j, k);
SetComputeShaderBuffer(_mergeSourceBuffer1ID, _mergeInstanceCount1ID, m + 1, j, k);
SetComputeShaderBuffer(_mergeSourceBuffer2ID, _mergeInstanceCount2ID, m + 2, j, k);
SetComputeShaderBuffer(_mergeSourceBuffer3ID, _mergeInstanceCount3ID, m + 3, j, k);
SetComputeShaderBuffer(_mergeSourceBuffer4ID, _mergeInstanceCount4ID, m + 4, j, k);
SetComputeShaderBuffer(_mergeSourceBuffer5ID, _mergeInstanceCount5ID, m + 5, j, k);
SetComputeShaderBuffer(_mergeSourceBuffer6ID, _mergeInstanceCount6ID, m + 6, j, k);
SetComputeShaderBuffer(_mergeSourceBuffer7ID, _mergeInstanceCount7ID, m + 7, j, k);
SetComputeShaderBuffer(_mergeSourceBuffer8ID, _mergeInstanceCount8ID, m + 8, j, k);
SetComputeShaderBuffer(_mergeSourceBuffer9ID, _mergeInstanceCount9ID, m + 9, j, k);
SetComputeShaderBuffer(_mergeSourceBuffer10ID, _mergeInstanceCount10ID, m + 10, j, k);
SetComputeShaderBuffer(_mergeSourceBuffer11ID, _mergeInstanceCount11ID, m + 11, j, k);
SetComputeShaderBuffer(_mergeSourceBuffer12ID, _mergeInstanceCount12ID, m + 12, j, k);
SetComputeShaderBuffer(_mergeSourceBuffer13ID, _mergeInstanceCount13ID, m + 13, j, k);
SetComputeShaderBuffer(_mergeSourceBuffer14ID, _mergeInstanceCount14ID, m + 14, j, k);
MergeBufferShader.Dispatch(MergeBufferKernelHandle, threadGroups, 1, 1);
}
for (int n = 0; n <= vegetationItemModelInfo.VegetationMeshLod0.subMeshCount - 1; n++)
{
ComputeBuffer.CopyCount(cameraComputeBuffers.MergeBuffer,
cameraComputeBuffers.ArgsBufferMergedLOD0List[n], sizeof(uint) * 1);
}
int threadGroupsFrustum = Mathf.CeilToInt(totalInstanceCount / 32f);
if (threadGroupsFrustum == 0) continue;
cameraComputeBuffers.VisibleBufferLOD0.SetCounterValue(0);
cameraComputeBuffers.VisibleBufferLOD1.SetCounterValue(0);
cameraComputeBuffers.VisibleBufferLOD2.SetCounterValue(0);
cameraComputeBuffers.VisibleBufferLOD3.SetCounterValue(0);
cameraComputeBuffers.ShadowBufferLOD0.SetCounterValue(0);
cameraComputeBuffers.ShadowBufferLOD1.SetCounterValue(0);
cameraComputeBuffers.ShadowBufferLOD2.SetCounterValue(0);
cameraComputeBuffers.ShadowBufferLOD3.SetCounterValue(0);
bool useLODs = true;
FrusumMatrixShader.SetFloat(_cullFarStartID, vegetationItemCullDistance);
FrusumMatrixShader.SetVector(_floatingOriginOffsetID, floatingOriginOffsetVector4);
FrusumMatrixShader.SetBuffer(FrustumKernelHandle, _sourceBufferID,
cameraComputeBuffers.MergeBuffer);
FrusumMatrixShader.SetBuffer(FrustumKernelHandle, _visibleBufferLod0ID,
cameraComputeBuffers.VisibleBufferLOD0);
FrusumMatrixShader.SetBuffer(FrustumKernelHandle, _visibleBufferLod1ID,
cameraComputeBuffers.VisibleBufferLOD1);
FrusumMatrixShader.SetBuffer(FrustumKernelHandle, _visibleBufferLod2ID,
cameraComputeBuffers.VisibleBufferLOD2);
FrusumMatrixShader.SetBuffer(FrustumKernelHandle, _visibleBufferLod3ID,
cameraComputeBuffers.VisibleBufferLOD3);
FrusumMatrixShader.SetBuffer(FrustumKernelHandle, _shadowBufferLod0ID,
cameraComputeBuffers.ShadowBufferLOD0);
FrusumMatrixShader.SetBuffer(FrustumKernelHandle, _shadowBufferLod1ID,
cameraComputeBuffers.ShadowBufferLOD1);
FrusumMatrixShader.SetBuffer(FrustumKernelHandle, _shadowBufferLod2ID,
cameraComputeBuffers.ShadowBufferLOD2);
FrusumMatrixShader.SetBuffer(FrustumKernelHandle, _shadowBufferLod3ID,
cameraComputeBuffers.ShadowBufferLOD3);
FrusumMatrixShader.SetInt(_instanceCountID, totalInstanceCount);
FrusumMatrixShader.SetBool(_useLodsID, useLODs);
FrusumMatrixShader.SetBool(_noFrustumCullingID, VegetationStudioCameraList[i].CameraCullingMode == CameraCullingMode.Complete360);
FrusumMatrixShader.SetBool(_shadowCullingID, useShadowCulling);
FrusumMatrixShader.SetFloat(_boundingSphereRadiusID,
vegetationItemModelInfo.BoundingSphereRadius);
FrusumMatrixShader.SetFloat(_lod1Distance, vegetationItemModelInfo.LOD1Distance);
FrusumMatrixShader.SetFloat(_lod2Distance, vegetationItemModelInfo.LOD2Distance);
FrusumMatrixShader.SetFloat(_lod3Distance, vegetationItemModelInfo.LOD3Distance);
FrusumMatrixShader.SetVector(_lightDirection, sunLightDirection);
FrusumMatrixShader.SetVector(_planeOrigin, planeOrigin);
FrusumMatrixShader.SetVector(_boundsSize, vegetationItemModelInfo.VegetationItemInfo.Bounds.size);
FrusumMatrixShader.SetFloat(_lodFactor, vegetationItemInfo.LODFactor);
FrusumMatrixShader.SetFloat(_lodBias, lodBias);
float crossFadeDistance = 0;
if (vegetationItemModelInfo.VegetationItemInfo.EnableCrossFade)
{
crossFadeDistance = VegetationRenderSettings.CrossFadeDistance;
}
#if USING_HDRP
if (vegetationItemModelInfo.VegetationItemInfo.VegetationRenderMode ==
VegetationRenderMode.Instanced)
{
crossFadeDistance = 0;
}
#endif
FrusumMatrixShader.SetFloat(_lodFadeDistance, crossFadeDistance);
FrusumMatrixShader.SetInt(_lodCount, vegetationItemModelInfo.LODCount);
FrusumMatrixShader.Dispatch(FrustumKernelHandle, threadGroupsFrustum, 1, 1);
if (VegetationRenderSettings.EnableSinglePassInstancedVR)
{
FrusumMatrixShader.Dispatch(FrustumKernelHandle, threadGroupsFrustum, 1, 1);
}
for (int n = 0; n <= vegetationItemModelInfo.VegetationMeshLod0.subMeshCount - 1; n++)
{
ComputeBuffer.CopyCount(cameraComputeBuffers.VisibleBufferLOD0,
cameraComputeBuffers.ArgsBufferMergedLOD0List[n], sizeof(uint) * 1);
ComputeBuffer.CopyCount(cameraComputeBuffers.ShadowBufferLOD0,
cameraComputeBuffers.ShadowArgsBufferMergedLOD0List[n], sizeof(uint) * 1);
}
if (useLODs)
{
for (int n = 0; n <= vegetationItemModelInfo.VegetationMeshLod1.subMeshCount - 1; n++)
{
ComputeBuffer.CopyCount(cameraComputeBuffers.VisibleBufferLOD1,
cameraComputeBuffers.ArgsBufferMergedLOD1List[n], sizeof(uint) * 1);
ComputeBuffer.CopyCount(cameraComputeBuffers.ShadowBufferLOD1,
cameraComputeBuffers.ShadowArgsBufferMergedLOD1List[n], sizeof(uint) * 1);
}
for (int n = 0; n <= vegetationItemModelInfo.VegetationMeshLod2.subMeshCount - 1; n++)
{
ComputeBuffer.CopyCount(cameraComputeBuffers.VisibleBufferLOD2,
cameraComputeBuffers.ArgsBufferMergedLOD2List[n], sizeof(uint) * 1);
ComputeBuffer.CopyCount(cameraComputeBuffers.ShadowBufferLOD2,
cameraComputeBuffers.ShadowArgsBufferMergedLOD2List[n], sizeof(uint) * 1);
}
for (int n = 0; n <= vegetationItemModelInfo.VegetationMeshLod3.subMeshCount - 1; n++)
{
ComputeBuffer.CopyCount(cameraComputeBuffers.VisibleBufferLOD3,
cameraComputeBuffers.ArgsBufferMergedLOD3List[n], sizeof(uint) * 1);
ComputeBuffer.CopyCount(cameraComputeBuffers.ShadowBufferLOD3,
cameraComputeBuffers.ShadowArgsBufferMergedLOD3List[n], sizeof(uint) * 1);
}
}
//TODO calculate bounds one for each LOD
float boundsDistance = vegetationItemCullDistance * 2 +
vegetationItemModelInfo.BoundingSphereRadius;
Bounds cellBounds = new Bounds(VegetationStudioCameraList[i].SelectedCamera.transform.position,
new Vector3(boundsDistance, boundsDistance, boundsDistance));
RenderVegetationItemLODIndirect(vegetationItemModelInfo, cellBounds, 0, i,
targetCamera, shadowCastingMode, layer,false);
if (shadowCastingMode == ShadowCastingMode.On)
{
RenderVegetationItemLODIndirect(vegetationItemModelInfo, cellBounds, 0, i,
targetCamera, ShadowCastingMode.ShadowsOnly, layer,true);
}
if (useLODs)
{
if (vegetationItemModelInfo.LODCount > 1)
{
RenderVegetationItemLODIndirect(vegetationItemModelInfo, cellBounds, 1, i,
targetCamera, shadowCastingMode, layer,false);
if (shadowCastingMode == ShadowCastingMode.On)
{
RenderVegetationItemLODIndirect(vegetationItemModelInfo, cellBounds, 1, i,
targetCamera, ShadowCastingMode.ShadowsOnly, layer,true);
}
}
if (vegetationItemModelInfo.LODCount > 2)
{
RenderVegetationItemLODIndirect(vegetationItemModelInfo, cellBounds, 2, i,
targetCamera, shadowCastingMode, layer,false);
if (shadowCastingMode == ShadowCastingMode.On)
{
RenderVegetationItemLODIndirect(vegetationItemModelInfo, cellBounds, 2, i,
targetCamera, ShadowCastingMode.ShadowsOnly, layer,true);
}
}
if (vegetationItemModelInfo.LODCount > 3)
{
RenderVegetationItemLODIndirect(vegetationItemModelInfo, cellBounds, 3, i,
targetCamera, shadowCastingMode, layer,false);
if (shadowCastingMode == ShadowCastingMode.On)
{
RenderVegetationItemLODIndirect(vegetationItemModelInfo, cellBounds, 3, i,
targetCamera, ShadowCastingMode.ShadowsOnly, layer,true);
}
}
}
}
}
}
Profiler.EndSample();
}
void RenderVegetationItemLODIndirect(VegetationItemModelInfo vegetationItemModelInfo, Bounds cellBounds, int lodIndex, int cameraIndex, Camera selectedCamera, ShadowCastingMode shadowCastingMode, int layer, bool shadows)
{
MaterialPropertyBlock materialPropertyBlock = vegetationItemModelInfo.GetLODMaterialPropertyBlock(lodIndex);
materialPropertyBlock.Clear();
ComputeBuffer visibleBuffer = vegetationItemModelInfo.GetLODVisibleBuffer(lodIndex, cameraIndex,shadows);
Mesh mesh = vegetationItemModelInfo.GetLODMesh(lodIndex);
Material[] materials = vegetationItemModelInfo.GetLODMaterials(lodIndex);
if (vegetationItemModelInfo.ShaderControler != null &&
vegetationItemModelInfo.ShaderControler.Settings.SampleWind)
{
MeshRenderer meshRenderer = vegetationItemModelInfo.WindSamplerMeshRendererList[cameraIndex];
if (meshRenderer)
{
meshRenderer.GetPropertyBlock(materialPropertyBlock);
}
}
materialPropertyBlock.SetBuffer(_visibleShaderDataBufferID, visibleBuffer);
materialPropertyBlock.SetBuffer(_indirectShaderDataBufferID, visibleBuffer);
List<ComputeBuffer> argsBufferList = vegetationItemModelInfo.GetLODArgsBufferList(lodIndex, cameraIndex,shadows);
//int[] data = new int[5];
//argsBufferList[0].GetData(data);
//Debug.Log("Indirect - LOD" + lodIndex + ":" + data[1]);
int submeshesToRender = Mathf.Min(mesh.subMeshCount, materials.Length);
for (int i = 0; i <= submeshesToRender - 1; i++)
{
Graphics.DrawMeshInstancedIndirect(mesh, i, materials[i], cellBounds,
argsBufferList[i], 0, materialPropertyBlock, shadowCastingMode, true, layer,
selectedCamera,LightProbeUsage.Off);
}
}
void SetComputeShaderBuffer(int bufferID, int bufferCountID, int cellIndex, int vegetationPackageIndex, int vegetationItemIndex)
{
if (cellIndex < _hasBufferList.Count)
{
VegetationCell vegetationCell = _hasBufferList[cellIndex];
int instanceCount = _hasBufferList[cellIndex].VegetationPackageInstancesList[vegetationPackageIndex].VegetationItemMatrixList[vegetationItemIndex].Length;
MergeBufferShader.SetBuffer(MergeBufferKernelHandle, bufferID, vegetationCell.VegetationPackageInstancesList[vegetationPackageIndex].VegetationItemComputeBufferList[vegetationItemIndex].ComputeBuffer);
MergeBufferShader.SetInt(bufferCountID, instanceCount);
}
else
{
MergeBufferShader.SetBuffer(MergeBufferKernelHandle, bufferID, _dummyComputeBuffer);
MergeBufferShader.SetInt(bufferCountID, 0);
}
}
}
}