folder structure 2
This commit is contained in:
twoischnig committed
1 parent
ee5b330904
commit
f1f314fbd3
59 files changed
+5650
No files matched your search
@@ -0,0 +1,418 @@
|
||||
#pragma kernel Cull_32 GROUPS=32
|
||||
#pragma kernel Cull_64 GROUPS=64
|
||||
#pragma kernel Cull_128 GROUPS=128
|
||||
#pragma kernel Cull_256 GROUPS=256
|
||||
#pragma kernel Cull_512 GROUPS=512
|
||||
#pragma kernel Cull_1024 GROUPS=1024
|
||||
|
||||
#pragma kernel Clear_32 GROUPS=32
|
||||
#pragma kernel Clear_64 GROUPS=64
|
||||
#pragma kernel Clear_128 GROUPS=128
|
||||
#pragma kernel Clear_256 GROUPS=256
|
||||
#pragma kernel Clear_512 GROUPS=512
|
||||
#pragma kernel Clear_1024 GROUPS=1024
|
||||
|
||||
#pragma kernel Upload_32 GROUPS=32
|
||||
#pragma kernel Upload_64 GROUPS=64
|
||||
#pragma kernel Upload_128 GROUPS=128
|
||||
#pragma kernel Upload_256 GROUPS=256
|
||||
#pragma kernel Upload_512 GROUPS=512
|
||||
#pragma kernel Upload_1024 GROUPS=1024
|
||||
|
||||
#pragma kernel Resize_32 GROUPS=32
|
||||
#pragma kernel Resize_64 GROUPS=64
|
||||
#pragma kernel Resize_128 GROUPS=128
|
||||
#pragma kernel Resize_256 GROUPS=256
|
||||
#pragma kernel Resize_512 GROUPS=512
|
||||
#pragma kernel Resize_1024 GROUPS=1024
|
||||
|
||||
#include "UnityCG.cginc"
|
||||
|
||||
struct InstanceData
|
||||
{
|
||||
// position.xyz : position.xyz
|
||||
// position.w : rotation.x
|
||||
// scale.x : scale.xz
|
||||
// scale.y : scale.y
|
||||
// scale.zw : rotation.yz
|
||||
float4 position;
|
||||
float4 scale;
|
||||
uint prefabId;
|
||||
//Used to stream out new instances
|
||||
int uploadAction;
|
||||
int uploadId;
|
||||
int age;
|
||||
};
|
||||
|
||||
struct PrefabData
|
||||
{
|
||||
uint batchIndex;
|
||||
uint indexBufferStartOffset;
|
||||
uint maxCount;
|
||||
uint lodCount;
|
||||
uint fadeLods;//Todo: Use Bitwise and save memory?
|
||||
//x: density threshold, y: density range start, z: density range length, w: shadow distance
|
||||
float4 densityInDistance;
|
||||
float4 lodData[8];
|
||||
uint2 indirectArgsIndexAndCountPerLod[8];
|
||||
};
|
||||
|
||||
struct InstanceMeta
|
||||
{
|
||||
uint visibleLod;
|
||||
uint fadeOutLod;
|
||||
float fadeAnim;
|
||||
|
||||
// The scale of the instance can be adjusted
|
||||
float Scale;
|
||||
};
|
||||
|
||||
StructuredBuffer<InstanceData> globalUploadInstances;
|
||||
RWStructuredBuffer<InstanceData> globalInstances;
|
||||
RWStructuredBuffer<InstanceData> tempGlobalInstances;
|
||||
StructuredBuffer<PrefabData> perCamPrefabs;
|
||||
StructuredBuffer<uint> perCamCullableIndexesBuffer;
|
||||
RWStructuredBuffer<InstanceMeta> perCamMeta;
|
||||
RWStructuredBuffer<uint> perCamIndirectArgumentsBuffer;
|
||||
RWStructuredBuffer<uint> perCamVisibleIndexesBuffer;
|
||||
RWStructuredBuffer<uint> perCamShadowVisibleIndexesBuffer;
|
||||
|
||||
uint _CountClear;
|
||||
uint _CountUpload;
|
||||
uint _CountResize;
|
||||
uint _CountCull;
|
||||
float3 _CameraPosition;
|
||||
float3 _ShadowDirection;
|
||||
float4 _FrustumPlanes[6];
|
||||
|
||||
// Plane equation: {(a, b, c) = N, d = -dot(N, P)}.
|
||||
// Returns the distance from the plane to the point 'p' along the normal.
|
||||
// Positive -> in front (above), negative -> behind (below).
|
||||
float DistanceFromPlane(float3 p, float4 plane)
|
||||
{
|
||||
return dot(float4(p, 1.0), plane);
|
||||
}
|
||||
|
||||
// Returns 'true' if the object is outside of the frustum.
|
||||
// 'size' is the (negative) size of the object's bounds.
|
||||
bool CullFrustum(float3 center, float size, float4 frustumPlanes[6], int numPlanes)
|
||||
{
|
||||
bool outside = false;
|
||||
[unroll(6)]
|
||||
for (int i = 0; i < numPlanes; i++)
|
||||
outside = outside || DistanceFromPlane(center, frustumPlanes[i]) < size;
|
||||
|
||||
return outside;
|
||||
}
|
||||
|
||||
// Returns 'true' if the shadow of the object is outside of the frustum.
|
||||
// 'size' is the (negative) size of the object's bounds.
|
||||
bool CullShadowFrustum(float3 center, float size, float3 lightDirection, float4 frustumPlanes[6], int numPlanes)
|
||||
{
|
||||
bool outside = false;
|
||||
[unroll(6)]
|
||||
for (int i = 0; i < numPlanes; i++)
|
||||
outside = outside || max(DistanceFromPlane(center, frustumPlanes[i]), DistanceFromPlane(center + lightDirection, frustumPlanes[i])) < size;
|
||||
|
||||
return outside;
|
||||
}
|
||||
|
||||
// Calculates the adjusted scale of the instance based on the "Density in Distance"
|
||||
// setting. Instances get scaled down if the density is reduced.
|
||||
float ReduceDensityScale(inout InstanceData instance, float4 densityInDistance, float distance)
|
||||
{
|
||||
float rangeStart = densityInDistance.y;
|
||||
float rangeLength = densityInDistance.z;
|
||||
|
||||
// Calculate a dither pattern with range [0..1]
|
||||
float dither = frac(dot(float3((instance.position.xz) * 16.0f, 0), uint3(2, 7, 23) / 17.0f));
|
||||
|
||||
float densityThreshold = 1 - densityInDistance.x;
|
||||
float distanceNormalized = (distance - rangeStart) / (rangeLength * dither + 0.001f);
|
||||
|
||||
if(dither > densityInDistance.x && distanceNormalized > 0)
|
||||
return 1 - distanceNormalized;
|
||||
else
|
||||
return 1;
|
||||
}
|
||||
|
||||
void ClearArgumentsBuffer(uint3 id : SV_DispatchThreadID)
|
||||
{
|
||||
if (id.x >= _CountClear)
|
||||
return;
|
||||
|
||||
uint indirectArgsCountOffset = id.x * 5 + 1;
|
||||
perCamIndirectArgumentsBuffer[indirectArgsCountOffset] = 0;
|
||||
}
|
||||
|
||||
void Upload (uint3 id : SV_DispatchThreadID)
|
||||
{
|
||||
if (id.x >= _CountUpload)
|
||||
return;
|
||||
|
||||
InstanceData instance = globalUploadInstances[id.x];
|
||||
|
||||
if (instance.uploadAction == 1)
|
||||
{
|
||||
globalInstances[instance.uploadId] = instance;
|
||||
}
|
||||
}
|
||||
|
||||
void Resize(uint3 id : SV_DispatchThreadID)
|
||||
{
|
||||
if (id.x >= _CountResize)
|
||||
return;
|
||||
|
||||
tempGlobalInstances[id.x] = globalInstances[id.x];
|
||||
}
|
||||
|
||||
void Cull (uint3 id : SV_DispatchThreadID)
|
||||
{
|
||||
if(id.x >= _CountCull)
|
||||
return;
|
||||
|
||||
uint instanceIndex = perCamCullableIndexesBuffer[id.x];
|
||||
InstanceData instance = globalInstances[instanceIndex];
|
||||
InstanceMeta meta = perCamMeta[instanceIndex];
|
||||
PrefabData prefab = perCamPrefabs[instance.prefabId];
|
||||
|
||||
if (instance.age == 0)
|
||||
{
|
||||
meta = (InstanceMeta)0;
|
||||
globalInstances[instanceIndex].age = 1;
|
||||
}
|
||||
|
||||
uint lodCount = prefab.lodCount;
|
||||
|
||||
uint visibleLod = 0;
|
||||
uint visibleShadowLod = 0;
|
||||
uint batchOffset = 0;
|
||||
uint indirectArgsCount = 0;
|
||||
uint indirectArgsCountOffset = 0;
|
||||
uint i = 0;
|
||||
uint u = 0;
|
||||
|
||||
// Calculate active LOD
|
||||
float dist = distance(instance.position.xyz, _CameraPosition.xyz);
|
||||
|
||||
[unroll(8)]
|
||||
for(i=0; i < lodCount; i++)
|
||||
{
|
||||
float maxDist =
|
||||
i < lodCount - 1 ? prefab.lodData[i].y * instance.scale.y : prefab.lodData[i].y;
|
||||
|
||||
if(dist >= prefab.lodData[i].x * instance.scale.y && dist < maxDist)
|
||||
{
|
||||
visibleLod = i + 1;
|
||||
if (dist < prefab.densityInDistance.w)//prefab.densityInDistance.w = max shadow distance
|
||||
visibleShadowLod = i + 1;
|
||||
}
|
||||
}
|
||||
|
||||
// Reduce density
|
||||
if(prefab.densityInDistance.x < 1)
|
||||
{
|
||||
meta.Scale = ReduceDensityScale(instance, prefab.densityInDistance, dist);
|
||||
if(meta.Scale < 0.3)
|
||||
{
|
||||
visibleLod = 0;
|
||||
visibleShadowLod = 0;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
meta.Scale = 1;
|
||||
}
|
||||
|
||||
// Frustum Culling
|
||||
if(visibleLod > 0)
|
||||
{
|
||||
float size = -prefab.lodData[visibleLod - 1].z * length(instance.scale.xy);
|
||||
const int planeCount = 5; // Do not test near/far planes
|
||||
if (CullFrustum(instance.position.xyz, size, _FrustumPlanes, planeCount))
|
||||
{
|
||||
// Setting active LOD to 0 culls the instance. The LODs start from 1.
|
||||
visibleLod = 0;
|
||||
|
||||
if (CullShadowFrustum(
|
||||
instance.position.xyz,
|
||||
size,
|
||||
_ShadowDirection * 1000,
|
||||
_FrustumPlanes,
|
||||
planeCount))
|
||||
{
|
||||
visibleShadowLod = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
uint visibleCount = 0;
|
||||
|
||||
if (visibleLod > 0)
|
||||
{
|
||||
batchOffset = prefab.indexBufferStartOffset + ((visibleLod - 1) * prefab.maxCount);
|
||||
indirectArgsCount = prefab.indirectArgsIndexAndCountPerLod[visibleLod - 1].y;
|
||||
indirectArgsCountOffset = prefab.indirectArgsIndexAndCountPerLod[visibleLod - 1].x + 1;
|
||||
|
||||
InterlockedAdd(perCamIndirectArgumentsBuffer[indirectArgsCountOffset], 1, visibleCount);
|
||||
|
||||
for (i = 1, u = 5; i < indirectArgsCount; i++, u += 5)
|
||||
{
|
||||
InterlockedAdd(perCamIndirectArgumentsBuffer[indirectArgsCountOffset + u], 1);
|
||||
}
|
||||
|
||||
perCamVisibleIndexesBuffer[batchOffset + visibleCount] = instanceIndex;
|
||||
|
||||
if (meta.visibleLod != visibleLod && meta.visibleLod > 0 && prefab.fadeLods > 0)
|
||||
{
|
||||
meta.fadeOutLod = meta.visibleLod;
|
||||
meta.fadeAnim = 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (visibleShadowLod > 0)
|
||||
{
|
||||
batchOffset = prefab.indexBufferStartOffset + ((visibleShadowLod - 1) * prefab.maxCount);
|
||||
indirectArgsCount = prefab.indirectArgsIndexAndCountPerLod[visibleShadowLod - 1].y;
|
||||
indirectArgsCountOffset = indirectArgsCount * 5 + prefab.indirectArgsIndexAndCountPerLod[visibleShadowLod - 1].x + 1;
|
||||
|
||||
InterlockedAdd(perCamIndirectArgumentsBuffer[indirectArgsCountOffset], 1, visibleCount);
|
||||
|
||||
for (i = 1, u = 5; i < indirectArgsCount; i++, u += 5)
|
||||
{
|
||||
InterlockedAdd(perCamIndirectArgumentsBuffer[indirectArgsCountOffset + u], 1);
|
||||
}
|
||||
|
||||
perCamShadowVisibleIndexesBuffer[batchOffset + visibleCount] = instanceIndex;
|
||||
|
||||
if (meta.visibleLod != visibleShadowLod && meta.visibleLod > 0 && prefab.fadeLods > 0)
|
||||
{
|
||||
meta.fadeOutLod = meta.visibleLod;
|
||||
meta.fadeAnim = 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (meta.fadeOutLod == 0)
|
||||
meta.fadeAnim = 0;
|
||||
|
||||
if (meta.fadeAnim == 0)
|
||||
meta.fadeOutLod = 0;
|
||||
|
||||
//Add lod cross fade
|
||||
if (meta.fadeAnim > 0 && meta.fadeOutLod > 0)
|
||||
{
|
||||
meta.fadeAnim = max(0, meta.fadeAnim - unity_DeltaTime.z);
|
||||
|
||||
//Normal
|
||||
if (visibleLod > 0 && meta.fadeAnim > 0)
|
||||
{
|
||||
batchOffset = prefab.indexBufferStartOffset + ((meta.fadeOutLod - 1) * prefab.maxCount);
|
||||
indirectArgsCount = prefab.indirectArgsIndexAndCountPerLod[meta.fadeOutLod - 1].y;
|
||||
indirectArgsCountOffset = prefab.indirectArgsIndexAndCountPerLod[meta.fadeOutLod - 1].x + 1;
|
||||
|
||||
InterlockedAdd(perCamIndirectArgumentsBuffer[indirectArgsCountOffset], 1, visibleCount);
|
||||
|
||||
for (i = 1, u = 5; i < indirectArgsCount; i++, u += 5)
|
||||
{
|
||||
InterlockedAdd(perCamIndirectArgumentsBuffer[indirectArgsCountOffset + u], 1);
|
||||
}
|
||||
|
||||
perCamVisibleIndexesBuffer[batchOffset + visibleCount] = instanceIndex;
|
||||
}
|
||||
|
||||
//Shadow
|
||||
if (visibleShadowLod > 0 && meta.fadeAnim > 0)
|
||||
{
|
||||
batchOffset = prefab.indexBufferStartOffset + ((meta.fadeOutLod - 1) * prefab.maxCount);
|
||||
indirectArgsCount = prefab.indirectArgsIndexAndCountPerLod[meta.fadeOutLod - 1].y;
|
||||
indirectArgsCountOffset = indirectArgsCount * 5 + prefab.indirectArgsIndexAndCountPerLod[meta.fadeOutLod - 1].x + 1;
|
||||
|
||||
InterlockedAdd(perCamIndirectArgumentsBuffer[indirectArgsCountOffset], 1, visibleCount);
|
||||
|
||||
for (i = 1, u = 5; i < indirectArgsCount; i++, u += 5)
|
||||
{
|
||||
InterlockedAdd(perCamIndirectArgumentsBuffer[indirectArgsCountOffset + u], 1);
|
||||
}
|
||||
|
||||
perCamShadowVisibleIndexesBuffer[batchOffset + visibleCount] = instanceIndex;
|
||||
}
|
||||
}
|
||||
|
||||
meta.visibleLod = max(visibleLod, visibleShadowLod);
|
||||
perCamMeta[instanceIndex] = meta;
|
||||
}
|
||||
|
||||
[numthreads(GROUPS,1,1)]
|
||||
void Cull_32(uint3 id : SV_DispatchThreadID) { Cull(id); }
|
||||
|
||||
[numthreads(GROUPS,1,1)]
|
||||
void Cull_64(uint3 id : SV_DispatchThreadID) { Cull(id); }
|
||||
|
||||
[numthreads(GROUPS,1,1)]
|
||||
void Cull_128(uint3 id : SV_DispatchThreadID) { Cull(id); }
|
||||
|
||||
[numthreads(GROUPS,1,1)]
|
||||
void Cull_256(uint3 id : SV_DispatchThreadID) { Cull(id); }
|
||||
|
||||
[numthreads(GROUPS,1,1)]
|
||||
void Cull_512(uint3 id : SV_DispatchThreadID) { Cull(id); }
|
||||
|
||||
[numthreads(GROUPS,1,1)]
|
||||
void Cull_1024(uint3 id : SV_DispatchThreadID) { Cull(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Clear_32(uint3 id : SV_DispatchThreadID) { ClearArgumentsBuffer(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Clear_64(uint3 id : SV_DispatchThreadID) { ClearArgumentsBuffer(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Clear_128(uint3 id : SV_DispatchThreadID) { ClearArgumentsBuffer(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Clear_256(uint3 id : SV_DispatchThreadID) { ClearArgumentsBuffer(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Clear_512(uint3 id : SV_DispatchThreadID) { ClearArgumentsBuffer(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Clear_1024(uint3 id : SV_DispatchThreadID) { ClearArgumentsBuffer(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Upload_32(uint3 id : SV_DispatchThreadID) { Upload(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Upload_64(uint3 id : SV_DispatchThreadID) { Upload(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Upload_128(uint3 id : SV_DispatchThreadID) { Upload(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Upload_256(uint3 id : SV_DispatchThreadID) { Upload(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Upload_512(uint3 id : SV_DispatchThreadID) { Upload(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Upload_1024(uint3 id : SV_DispatchThreadID) { Upload(id); }
|
||||
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Resize_32(uint3 id : SV_DispatchThreadID) { Resize(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Resize_64(uint3 id : SV_DispatchThreadID) { Resize(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Resize_128(uint3 id : SV_DispatchThreadID) { Resize(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Resize_256(uint3 id : SV_DispatchThreadID) { Resize(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Resize_512(uint3 id : SV_DispatchThreadID) { Resize(id); }
|
||||
|
||||
[numthreads(GROUPS, 1, 1)]
|
||||
void Resize_1024(uint3 id : SV_DispatchThreadID) { Resize(id); }
|
||||
|
||||
|
||||
Reference in new issue
Block a user