//This only modifies vertices after ApplyCHR0 has weighted them.
//It cannot be used without calling ApplyCHR0 first.
public void ApplySHP(SHP0Node node, int index)
{
_currentSHP = node;
_currentSHPIndex = index;
if (node == null || index == 0)
return;
SHP0EntryNode n;
if (_objList != null)
foreach (MDL0ObjectNode poly in _objList)
if ((n = node.FindChild(poly.VertexNode, true) as SHP0EntryNode) != null)
{
//Max amount of morphs allowed is 32
float[] weights = new float[n.Children.Count];
MDL0VertexNode[] nodes = new MDL0VertexNode[n.Children.Count];
foreach (SHP0VertexSetNode v in n.Children)
{
MDL0VertexNode vNode = null;
foreach (MDL0VertexNode vn in _vertList)
if (vn.Name == v.Name)
{ vNode = vn; break; }
weights[v.Index] = vNode != null ? v.Keyframes.GetFrameValue(index - 1, SHP0VertexSetNode._linear) : 0;
nodes[v.Index] = vNode;
}
float totalWeight = 0;
foreach (float f in weights)
totalWeight += f;
float baseWeight = 1.0f - totalWeight;
//Calculate barycenter per vertex and set as weighted pos
for (int i = 0; i < poly._manager._vertices.Count; i++)
{
int x = 0;
Vertex3 v3 = poly._manager._vertices[i];
v3._weightedPosition *= baseWeight;
foreach (MDL0VertexNode vNode in nodes)
if (vNode != null)
v3._weightedPosition += (v3.GetMatrix() * vNode.Vertices[v3._facepoints[0]._vertexIndex]) * weights[x++];
v3._weightedPosition /= (totalWeight + baseWeight);
v3.weights = weights;
v3.nodes = nodes;
v3.baseWeight = baseWeight;
v3.bCenter = v3._weightedPosition;
}
}
}
