internal override ShapeComputationData GenerateComputationData(
PhysicsShapeAuthoring shape, ColliderInstance colliderInstance,
NativeList <float3> allConvexHullPoints, NativeList <float3> allMeshVertices, NativeList <int3> allMeshTriangles
)
{
var res = new ShapeComputationData();
res.Instance = colliderInstance;
res.Material = ProduceMaterial(shape);
res.CollisionFilter = ProduceCollisionFilter(shape);
res.ForceUniqueIdentifier = shape.ForceUnique ? (uint)shape.GetInstanceID() : 0u;
var transform = shape.transform;
var localToWorld = transform.localToWorldMatrix;
var shapeToWorld = shape.GetShapeToWorldMatrix();
EulerAngles orientation;
res.ShapeType = shape.ShapeType;
switch (shape.ShapeType)
{
case ShapeType.Box:
{
res.BoxProperties = shape.GetBoxProperties(out orientation)
.BakeToBodySpace(localToWorld, shapeToWorld, orientation);
break;
}
case ShapeType.Capsule:
{
res.CapsuleProperties = shape.GetCapsuleProperties()
.BakeToBodySpace(localToWorld, shapeToWorld)
.ToRuntime();
break;
}
case ShapeType.Sphere:
{
res.SphereProperties = shape.GetSphereProperties(out orientation)
.BakeToBodySpace(localToWorld, shapeToWorld, ref orientation);
break;
}
case ShapeType.Cylinder:
{
res.CylinderProperties = shape.GetCylinderProperties(out orientation)
.BakeToBodySpace(localToWorld, shapeToWorld, orientation);
break;
}
case ShapeType.Plane:
{
shape.GetPlaneProperties(out var center, out var size, out orientation);
PhysicsShapeExtensions.BakeToBodySpace(
center, size, orientation, localToWorld, shapeToWorld,
out res.PlaneVertices.c0, out res.PlaneVertices.c1, out res.PlaneVertices.c2, out res.PlaneVertices.c3
);
break;
}
case ShapeType.ConvexHull:
{
res.ConvexHullProperties.Filter = res.CollisionFilter;
res.ConvexHullProperties.Material = res.Material;
res.ConvexHullProperties.GenerationParameters = shape.ConvexHullGenerationParameters.ToRunTime();
res.Instance.Hash = shape.GetBakedConvexInputs();
if (BlobComputationContext.NeedToComputeBlobAsset(res.Instance.Hash))
{
if (TryGetRegisteredConvexInputs(res.Instance.Hash, out var convexInputs))
{
res.ConvexHullProperties.PointCount = convexInputs.PointCount;
res.ConvexHullProperties.PointsStart = convexInputs.PointsStart;
}
else
{
using (var pointCloud = new NativeList <float3>(65535, Allocator.Temp))
{
shape.GetBakedConvexProperties(pointCloud);
if (pointCloud.Length == 0)
{
throw new InvalidOperationException(
$"No vertices associated with {shape.name}. Add a {typeof(MeshFilter)} component or assign a readable {nameof(PhysicsShapeAuthoring.CustomMesh)}."
);
}
res.ConvexHullProperties.PointCount = pointCloud.Length;
res.ConvexHullProperties.PointsStart = allConvexHullPoints.Length;
allConvexHullPoints.AddRange(pointCloud);
}
}
}
break;
}
case ShapeType.Mesh:
{
res.MeshProperties.Filter = res.CollisionFilter;
res.MeshProperties.Material = res.Material;
res.Instance.Hash = shape.GetBakedMeshInputs();
if (BlobComputationContext.NeedToComputeBlobAsset(res.Instance.Hash))
{
if (TryGetRegisteredMeshInputs(res.Instance.Hash, out var meshInputs))
{
res.MeshProperties.VerticesStart = meshInputs.VerticesStart;
res.MeshProperties.VertexCount = meshInputs.VertexCount;
res.MeshProperties.TrianglesStart = meshInputs.TrianglesStart;
res.MeshProperties.TriangleCount = meshInputs.TriangleCount;
}
else
{
const int defaultVertexCount = 2048;
using (var vertices = new NativeList <float3>(defaultVertexCount, Allocator.Temp))
using (var triangles = new NativeList <int3>(defaultVertexCount - 2, Allocator.Temp))
{
shape.GetBakedMeshProperties(vertices, triangles);
if (vertices.Length == 0 || triangles.Length == 0)
{
throw new InvalidOperationException(
$"Invalid mesh data associated with {shape.name}. " +
$"Add a {typeof(MeshFilter)} component or assign a {nameof(PhysicsShapeAuthoring.CustomMesh)}. " +
"Ensure that you have enabled Read/Write on the mesh's import settings."
);
}
res.MeshProperties.VerticesStart = allMeshVertices.Length;
res.MeshProperties.VertexCount = vertices.Length;
res.MeshProperties.TrianglesStart = allMeshTriangles.Length;
res.MeshProperties.TriangleCount = triangles.Length;
allMeshVertices.AddRange(vertices);
allMeshTriangles.AddRange(triangles);
}
}
}
break;
}
}
return(res);
}
