public void TestCreateSoftMeshSkinning()
{
Vector3[] vertices = { new Vector3(1, 1, 1), new Vector3(-1, -1, 1), new Vector3(-1, 1, -1), new Vector3(1, -1, -1) };
Vector3[] bones = { new Vector3(0, 0, 1), new Vector3(0, 0, 0), new Vector3(0, 0, -1) };
float falloff = 1.0f;
float maxDistance = 2.5f;
float[] skinningWeights = new float[vertices.Length * 4];
int[] skinningIndices = new int[vertices.Length * 4];
FlexExt.CreateSoftMeshSkinning(ref vertices[0], vertices.Length, ref bones[0], bones.Length, falloff, maxDistance, ref skinningWeights[0], ref skinningIndices[0]);
Assert.AreEqual(0, skinningIndices[0]);
Assert.AreEqual(1, skinningIndices[1]);
Assert.AreEqual(2, skinningIndices[2]);
Assert.AreEqual(-1, skinningIndices[3]);
Assert.AreEqual(1.0f, skinningWeights[0] + skinningWeights[1] + skinningWeights[2] + skinningWeights[3]);
}
void BuildSkinningInfo()
{
if (m_actor && m_actor.asset && m_renderer && m_renderer.sharedMesh)
{
Vector3[] vertices = m_renderer.sharedMesh.vertices;
Transform actorTransform = m_actor.transform;
Transform rendererTransform = m_renderer.transform;
Vector3[] shapeCenters = (Vector3[])m_actor.asset.shapeCenters.Clone();
for (int i = 0; i < shapeCenters.Length; ++i)
{
shapeCenters[i] = rendererTransform.InverseTransformPoint(actorTransform.TransformPoint(shapeCenters[i]));
}
Quaternion shapeRotation = Quaternion.Inverse(rendererTransform.rotation) * actorTransform.rotation;
m_bindposes = new Matrix4x4[shapeCenters.Length];
for (int i = 0; i < shapeCenters.Length; ++i)
{
m_bindposes[i] = Matrix4x4.TRS(shapeCenters[i], shapeRotation, Vector3.one).inverse;
}
float[] skinningWeights = new float[vertices.Length * 4];
int[] skinningIndices = new int[vertices.Length * 4];
FlexExt.CreateSoftMeshSkinning(ref vertices[0], vertices.Length, ref shapeCenters[0], shapeCenters.Length, m_skinningFalloff, m_skinningMaxDistance, ref skinningWeights[0], ref skinningIndices[0]);
m_boneWeights = new BoneWeight[vertices.Length];
for (int i = 0; i < vertices.Length; ++i)
{
BoneWeight w = new BoneWeight();
w.boneIndex0 = skinningIndices[i * 4 + 0];
w.boneIndex1 = skinningIndices[i * 4 + 1];
w.boneIndex2 = skinningIndices[i * 4 + 2];
w.boneIndex3 = skinningIndices[i * 4 + 3];
w.weight0 = skinningWeights[i * 4 + 0];
w.weight1 = skinningWeights[i * 4 + 1];
w.weight2 = skinningWeights[i * 4 + 2];
w.weight3 = skinningWeights[i * 4 + 3];
m_boneWeights[i] = w;
}
}
}