SoftBody CreateFromIndexedMesh(Vector3Array vertexArray, IntArray triangleVertexIndexArray, bool createBendLinks)
{
SoftBody softBody = new SoftBody(SoftWorld.WorldInfo, vertexArray, null);
Material structuralMaterial = softBody.AppendMaterial();
Material bendMaterial;
if (createBendLinks)
{
bendMaterial = softBody.AppendMaterial();
bendMaterial.Lst = 0.7f;
}
else
{
bendMaterial = null;
}
structuralMaterial.Lst = 1.0f;
int numVertices = vertexArray.Count;
int numTriangles = triangleVertexIndexArray.Count / 3;
// List of values for each link saying which triangle is associated with that link
// -1 to start. Once a value is entered we know the "other" triangle
// and can add a link across the link
AlignedIntArray triangleForLinks = new AlignedIntArray();
triangleForLinks.Resize(numVertices * numVertices, -1);
for (int triangle = 0; triangle < numTriangles; ++triangle)
{
int[] index = new int[] { triangleVertexIndexArray[triangle * 3], triangleVertexIndexArray[triangle * 3 + 1], triangleVertexIndexArray[triangle * 3 + 2] };
softBody.AppendFace(index[0], index[1], index[2]);
// Generate the structural links directly from the triangles
TestAndAddLink(triangleForLinks, softBody, triangle, triangleVertexIndexArray, numVertices, index[0], index[1], index[2], structuralMaterial, createBendLinks, bendMaterial);
TestAndAddLink(triangleForLinks, softBody, triangle, triangleVertexIndexArray, numVertices, index[1], index[2], index[0], structuralMaterial, createBendLinks, bendMaterial);
TestAndAddLink(triangleForLinks, softBody, triangle, triangleVertexIndexArray, numVertices, index[2], index[0], index[1], structuralMaterial, createBendLinks, bendMaterial);
}
return softBody;
}
