// Iterate over all colliders and store those whose cell span has changed.
public void Execute(int i)
{
float size = bounds[i].AverageAxisLength();
int level = NativeMultilevelGrid <int> .GridLevelForSize(size);
float cellSize = NativeMultilevelGrid <int> .CellSizeOfLevel(level);
// get new collider bounds cell coordinates:
BurstCellSpan newSpan = new BurstCellSpan(new int4(GridHash.Quantize(bounds[i].min.xyz, cellSize), level),
new int4(GridHash.Quantize(bounds[i].max.xyz, cellSize), level));
// if the collider is 2D, project it to the z = 0 cells.
if (colliders[i].is2D != 0)
{
newSpan.min[2] = 0;
newSpan.max[2] = 0;
}
// if the collider is at the tail (removed), we will only remove it from its current cellspan.
// if the new cellspan and the current one are different, we must remove it from its current cellspan and add it to its new one.
if (i >= colliderCount || cellIndices[i] != newSpan)
{
// Add the collider to the list of moving colliders:
movingColliders.Enqueue(new MovingCollider()
{
oldSpan = cellIndices[i],
newSpan = newSpan,
entity = i
});
// Update previous coords:
cellIndices[i] = newSpan;
}
}
// Iterate over all colliders and store those whose cell span has changed.
public void Execute(int i)
{
BurstAabb velocityBounds = bounds[i];
// Expand bounds by rigidbody's linear velocity:
if (shapes[i].rigidbodyIndex >= 0)
{
velocityBounds.Sweep(rigidbodies[shapes[i].rigidbodyIndex].velocity * dt);
}
// Expand bounds by collision material's stick distance:
if (shapes[i].materialIndex >= 0)
{
velocityBounds.Expand(collisionMaterials[shapes[i].materialIndex].stickDistance);
}
float size = velocityBounds.AverageAxisLength();
int level = NativeMultilevelGrid <int> .GridLevelForSize(size);
float cellSize = NativeMultilevelGrid <int> .CellSizeOfLevel(level);
// get new collider bounds cell coordinates:
BurstCellSpan newSpan = new BurstCellSpan(new int4(GridHash.Quantize(velocityBounds.min.xyz, cellSize), level),
new int4(GridHash.Quantize(velocityBounds.max.xyz, cellSize), level));
// if the collider is 2D, project it to the z = 0 cells.
if (shapes[i].is2D != 0)
{
newSpan.min[2] = 0;
newSpan.max[2] = 0;
}
// if the collider is at the tail (removed), we will only remove it from its current cellspan.
// if the new cellspan and the current one are different, we must remove it from its current cellspan and add it to its new one.
if (i >= colliderCount || cellIndices[i] != newSpan)
{
// Add the collider to the list of moving colliders:
movingColliders.Enqueue(new MovingCollider()
{
oldSpan = cellIndices[i],
newSpan = newSpan,
entity = i
});
// Update previous coords:
cellIndices[i] = newSpan;
}
}
public void Execute(int i)
{
int level = NativeMultilevelGrid <int> .GridLevelForSize(simplexBounds[i].AverageAxisLength());
float cellSize = NativeMultilevelGrid <int> .CellSizeOfLevel(level);
// get new particle cell coordinate:
int4 newCellCoord = new int4(GridHash.Quantize(simplexBounds[i].center.xyz, cellSize), level);
// if the solver is 2D, project the particle to the z = 0 cell.
if (is2D)
{
newCellCoord[2] = 0;
}
cellCoords[i] = newCellCoord;
}
public void Execute(int index)
{
int i = activeParticles[index];
// Find this particle's stick distance:
float stickDistance = 0;
if (particleMaterialIndices[i] >= 0)
{
stickDistance = collisionMaterials[particleMaterialIndices[i]].stickDistance;
}
// Use it (together with radius and fluid radius) to calculate its size in the grid.
float size = radii[i].x * 2.2f + stickDistance;
size = math.max(size, fluidRadii[i] * 1.1f);
int level = NativeMultilevelGrid <int> .GridLevelForSize(size);
float cellSize = NativeMultilevelGrid <int> .CellSizeOfLevel(level);
// get new particle cell coordinate:
int4 newCellCoord = new int4(GridHash.Quantize(positions[i].xyz, cellSize), level);
// if the solver is 2D, project the particle to the z = 0 cell.
if (is2D)
{
newCellCoord[2] = 0;
}
// if the current cell is different from the current one, the particle has changed cell.
if (!newCellCoord.Equals(cellCoord[i]))
{
movingParticles.Enqueue(new MovingEntity()
{
oldCellCoord = cellCoord[i],
newCellCoord = newCellCoord,
entity = i
});
cellCoord[i] = newCellCoord;
}
}
