Martin (guest) 21 Feb 2011 21:07
Whenever I try to set up a triangle mesh as my level I fall through it or the collisions seems to be off with the model.
I'm not very good with this stuff but is it to do with the models im exporting (I have to scale them down when i export them or they are way too big)
or is it the extracting data method (I got this off a website)
public void ExtractData(List<Vector3> vertices, List<JigLibX.Geometry.TriangleVertexIndices> indices, Model model)
{
Matrix[] bones_ = new Matrix[model.Bones.Count];
model.CopyAbsoluteBoneTransformsTo(bones_);
foreach (ModelMesh mm in model.Meshes)
{
Matrix xform = bones_[mm.ParentBone.Index];
foreach (ModelMeshPart mmp in mm.MeshParts)
{
int offset = vertices.Count;
Vector3[] a = new Vector3[mmp.NumVertices];
mmp.VertexBuffer.GetData<Vector3>(mmp.VertexOffset * mmp.VertexBuffer.VertexDeclaration.VertexStride,
a, 0, mmp.NumVertices, mmp.VertexBuffer.VertexDeclaration.VertexStride);
for (int i = 0; i != a.Length; ++i)
Vector3.Transform(ref a[i], ref xform, out a[i]);
vertices.AddRange(a);
if (mmp.IndexBuffer.IndexElementSize != IndexElementSize.SixteenBits)
throw new Exception(
String.Format("Model uses 32-bit indices, which are not supported."));
short[] s = new short[mmp.PrimitiveCount * 3];
mmp.IndexBuffer.GetData<short>(mmp.StartIndex * 2, s, 0, mmp.PrimitiveCount * 3);
JigLibX.Geometry.TriangleVertexIndices[] tvi = new JigLibX.Geometry.TriangleVertexIndices[mmp.PrimitiveCount];
for (int i = 0; i != tvi.Length; ++i)
{
tvi[i].I0 = s[i * 3 + 0] + offset;
tvi[i].I1 = s[i * 3 + 1] + offset;
tvi[i].I2 = s[i * 3 + 2] + offset;
}
indices.AddRange(tvi);
}
}
}
Thank you for any help anyone can provide.
