int numberVerts = 4;
short[] indices = {
0,1,2, // Front Face
1,3,2
// Front Face};
mesh =
new Mesh(numberVerts * 3, 4, MeshFlags.Managed, CustomVertex.PositionNormal.Format, Device); using (VertexBuffer vb = mesh.VertexBuffer){
GraphicsStream data = vb.Lock(0, 0, LockFlags.None);data.Write(
new CustomVertex.PositionNormal(-1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f));data.Write(
new CustomVertex.PositionNormal(-1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f));data.Write(
new CustomVertex.PositionNormal(1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f));data.Write(
new CustomVertex.PositionNormal(1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f));vb.Unlock();
}
using (IndexBuffer ib = mesh.IndexBuffer){
ib.SetData(indices, 0,
LockFlags.None);}
I then render with the following code:
Device.Transform.World =
Matrix.Identity;Device.Material = mat;
Device.VertexFormat =
CustomVertex.PositionNormal.Format;mesh.DrawSubset(0);
Having trouble Rendering Meshes created "by hand".
Tim Raleigh
Don’t use “using“ with buffers from a mesh. I know it is in the documentation but the sample there is wrong. The reason is that a using block will call Dispose at the end. This will destroy the buffers in the mesh.
This should work better:
VertexBuffer vb = mesh.VertexBuffer;
GraphicsStream data = vb.Lock(0, 0, LockFlags.None);
data.Write(new CustomVertex.PositionNormal(-1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f));
data.Write(new CustomVertex.PositionNormal(-1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f));
data.Write(new CustomVertex.PositionNormal(1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f));
data.Write(new CustomVertex.PositionNormal(1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f));
vb.Unlock();
IndexBuffer ib = mesh.IndexBuffer;
ib.SetData(indices, 0, LockFlags.None);
Vinay Ahuja