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This commit is contained in:
BobSong
2026-01-01 22:00:33 +08:00
parent 040a222bd6
commit 9ceffccd39
1800 changed files with 103929 additions and 139495 deletions
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90
Assets/Obi/Resources/Compute/AtomicDeltas.cginc
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@@ -1,90 +0,0 @@
#ifndef ATOMICDELTAS_INCLUDE
#define ATOMICDELTAS_INCLUDE
#include "InterlockedUtils.cginc"
RWStructuredBuffer<uint4> deltasAsInt;
RWStructuredBuffer<uint> positionConstraintCounts;
RWStructuredBuffer<uint4> orientationDeltasAsInt;
RWStructuredBuffer<uint> orientationConstraintCounts;
// atomic delta add:
void AtomicAddPositionDelta(in int index, in float4 delta)
{
InterlockedAddFloat(deltasAsInt, index, 0, delta.x);
InterlockedAddFloat(deltasAsInt, index, 1, delta.y);
InterlockedAddFloat(deltasAsInt, index, 2, delta.z);
InterlockedAdd(positionConstraintCounts[index], 1);
}
void AtomicAddOrientationDelta(in int index, in quaternion delta)
{
InterlockedAddFloat(orientationDeltasAsInt, index, 0, delta.x);
InterlockedAddFloat(orientationDeltasAsInt, index, 1, delta.y);
InterlockedAddFloat(orientationDeltasAsInt, index, 2, delta.z);
InterlockedAddFloat(orientationDeltasAsInt, index, 3, delta.w);
InterlockedAdd(orientationConstraintCounts[index], 1);
}
// non-atomic versions:
void AddPositionDelta(in int index, in float4 delta)
{
deltasAsInt[index] = asuint(delta + asfloat(deltasAsInt[index]));
positionConstraintCounts[index]++;
}
void AddOrientationDelta(in int index, in quaternion delta)
{
orientationDeltasAsInt[index] = asuint(delta + asfloat(orientationDeltasAsInt[index]));
orientationConstraintCounts[index]++;
}
// applying deltas:
void ApplyPositionDelta(RWStructuredBuffer<float4> positions, in int index, in float SOR)
{
int count = positionConstraintCounts[index];
if (count > 0)
{
positions[index].xyz += float3(asfloat(deltasAsInt[index].x),
asfloat(deltasAsInt[index].y),
asfloat(deltasAsInt[index].z)) * SOR / count;
deltasAsInt[index] = uint4(0, 0, 0, 0);
positionConstraintCounts[index] = 0;
}
}
void ApplyOrientationDelta(RWStructuredBuffer<quaternion> orientations, in int index, in float SOR)
{
int count = orientationConstraintCounts[index];
if (count > 0)
{
orientations[index] += quaternion(asfloat(orientationDeltasAsInt[index].x),
asfloat(orientationDeltasAsInt[index].y),
asfloat(orientationDeltasAsInt[index].z),
asfloat(orientationDeltasAsInt[index].w)) * SOR / count;
orientations[index] = normalize(orientations[index]);
orientationDeltasAsInt[index] = uint4(0, 0, 0, 0);
orientationConstraintCounts[index] = 0;
}
}
void ApplyUserDataDelta(RWStructuredBuffer<float4> userData, in int index)
{
int count = orientationConstraintCounts[index];
if (count > 0)
{
userData[index] += float4(asfloat(orientationDeltasAsInt[index].x),
asfloat(orientationDeltasAsInt[index].y),
asfloat(orientationDeltasAsInt[index].z),
asfloat(orientationDeltasAsInt[index].w));
orientationDeltasAsInt[index] = uint4(0, 0, 0, 0);
orientationConstraintCounts[index] = 0;
}
}
#endif