/**
* Deforms the mesh to match the proxy shape. The binding proccess (performed by BindToProxy()) must have been
* performed succesfully before calling this function.
*/
public void ApplyProxySkinning()
{
Vector3[] vertices = deformedMesh.vertices;
Vector3[] normals = deformedMesh.normals;
Vector4[] tangents = deformedMesh.tangents;
Vector3[] bindNormals = sharedMesh.normals;
Vector4[] bindTangents = sharedMesh.tangents;
Quaternion proxyToLocal = Quaternion.Inverse(transform.rotation) * proxy.transform.rotation;
for (int i = 0; i < vertices.Length; ++i)
{
vertices[i] = Vector3.zero;
normals[i] = Vector3.zero;
// To hold tangent vector temporarily:
Vector3 tangent = Vector3.zero;
ParticleInfluence influence;
for (int j = 0; j < numInfluences; ++j)
{
influence = influences[i * numInfluences + j];
// Get current particle position:
Vector3 influencePosition = transform.InverseTransformPoint(proxy.GetParticlePosition(influence.particleIndex));
// Calculate delta rotation with respect to bind pose rotation, in local space:
Quaternion deltaRotation = proxyToLocal * proxy.GetParticleOrientation(influence.particleIndex) *
bindPoses[influence.particleIndex];
// Transform vertex positions, normals and tangents according to the proxy binding, all in local space:
vertices[i] += influence.weight * (influencePosition + deltaRotation * influence.bindVector);
normals[i] += influence.weight * (deltaRotation * bindNormals[i]);
tangent += influence.weight * (deltaRotation * (Vector3)bindTangents[i]);
}
// Reset tangent w (mirror):
tangents[i].Set(tangent.x, tangent.y, tangent.z, bindTangents[i].w);
}
// Assign new data to the mesh and recalculate bounds:
deformedMesh.vertices = vertices;
deformedMesh.normals = normals;
deformedMesh.tangents = tangents;
deformedMesh.RecalculateBounds();
}
public override void UpdateParticleEditorInformation()
{
for (int i = 0; i < cloth.positions.Length; i++)
{
wsPositions[i] = cloth.GetParticlePosition(i);
wsOrientations[i] = cloth.GetParticleOrientation(i);
}
if (cloth.clothMesh != null && Camera.current != null)
{
for (int i = 0; i < cloth.clothMesh.vertexCount; i++)
{
int particle = cloth.topology.visualMap[i];
Vector3 camToParticle = Camera.current.transform.position - wsPositions[particle];
sqrDistanceToCamera[particle] = camToParticle.sqrMagnitude;
facingCamera[particle] = (Vector3.Dot(cloth.ActorLocalToWorldMatrix.MultiplyVector(cloth.MeshNormals[i]), camToParticle) > 0);
}
}
}
