void InitVertexParam(int face_id, int vertex_id)
{
//if (init_ok[vertex_id]) return;
if (vertexParms.ContainsKey(vertex_id))
{
return;
}
var tangent = mesh.tangents[vertex_id];
var normal = mesh.normals[vertex_id];
var tan3 = new Vector3(tangent.x, tangent.y, tangent.z);
var u1 = Vector3.Cross(tan3, normal).normalized *tangent.w;
var u2 = Vector3.Cross(u1, normal).normalized;
float angle1 = Vector3.Angle(u1, normal) - 90;
float angle2 = Vector3.Angle(u2, normal) - 90;
float angle3 = Vector3.Angle(u1, u2) - 90;
Debug.Assert(angle1 <= float.Epsilon, angle1.ToString());
Debug.Assert(angle2 <= float.Epsilon, angle2.ToString());
Debug.Assert(angle3 <= float.Epsilon, angle3.ToString());
var parm = new VertexParm(vertex_id, face_id, u1, u2);
vertexParms.Add(vertex_id, parm);
}
void OnDrawGizmos()
{
if (visible_gizmo && initControlMesh && controlMesh != null)
{
var mesh = GetComponent <MeshFilter>().sharedMesh;
var vertices = mesh.vertices;
Debug.Assert(mesh.vertexCount == controlMesh.vertexParms.Count);
//for (int i = 0; i < vertices.Length; i++)
foreach (var vertex_param in controlMesh.vertexParms)
{
int vid = vertex_param.Key;
VertexParm param = vertex_param.Value;
var vertics_world = transform.localToWorldMatrix.MultiplyPoint3x4(vertices[vid]);
float line_length = transform.lossyScale.x * 0.02f;
Gizmos.color = Color.red;
Gizmos.DrawLine(vertics_world, vertics_world + param.U1 * line_length);
Gizmos.color = Color.green;
Gizmos.DrawLine(vertics_world, vertics_world + param.U2 * line_length);
//Gizmos.color = Color.white;
//Gizmos.DrawLine(vertics_world, vertics_world + tan_sum * line_length);
}
}
}
public void UpdateMeshTest(float w1, float w2)
{
var vertices = mesh.vertices;
Debug.Assert(mesh.vertexCount == vertexParms.Count);
Vector3[] newVertices = new Vector3[mesh.vertexCount];
foreach (var vertex_param in vertexParms)
{
int vid = vertex_param.Key;
VertexParm param = vertex_param.Value;
var vec_sum = param.U1 * w1 + param.U2 * w2;
newVertices[vid] = vertices[vid] + vec_sum;
}
mesh.vertices = newVertices;
}
