Hy.
I have to draw a triangle with a directx10 shader but a vertex appear hidden.
I post this page:

http://www.greenhousealberoni.it/error.html

for more information , a file of pix with the debug and the list of vertex that are imported from a collada model.
The vertexes are correct , i test they.
I'm reset cull mode to CULL_NONE.
I have imoported all vertex from the model in the vertex buffer , i only used

m_pDevice->DrawIndexed(3, 0, 0 );
for draw only the first trriangle.
but, i'm not understand why, the last vertex(vtx 2 and idx 0) is not visible.

Thanks

Ps.
I have more than one vertex for each coord x,y,z because each vertex can have different normals or text coord for each coord , then i can have:

Vertex 1: x:10 y:5 z:0 U:0,2 V 0,4
and
Vertex 2: x:10 y:5 z:0 U:0,4 V 0,67

in this case i have created two or more vertex with each coord.
Is correct or completely  wrong?
and is possible that another vertex with the same coord hide my vertex in the same position?

thanks.

hi,
did you consider the clockwise winding direction of the vertices during the creation? perhaps you see the triangle from behind und thus it's invisible for you...

have a nice eve

what does the debug runtime output say?

post your rendering code + the HLSL code pliz :)
that helps alot ;)