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Hi everyone,
this question make me so depressed. I want to draw a cube with vertexbuffer and indexbuffer. Its ok, but now I want to use Matrix to make cube transformation. The matrix dont work now. I cant use Worldmatrix make transformation, also use View- and ProjMatrix to change Viewport.
( use function DrawIndexedPrimitive(D3DPT_TRIANGLELIST, .......) )No matter how set this three matrix, I can only see one face of cube and this cube is forever in the left-up corner.

But if I render other primitives without indexbuffer, its ok.
( use function DrawPrimitive(D3DPT_TRIANGLESTRIP, .......) )
Why?

I must work out every vertex position with matrix selbst when I use indexbuffer? Or maybe I forget something to set?

Whether its Index buffers or vertex buffers it works the same. So if you can show me the code how you are doing it I can tell you what you are doing wrong.

It could be weird if your index buffer is wrong.

: Hi everyone,
: this question make me so depressed. I want to draw a cube with
: vertexbuffer and indexbuffer. Its ok, but now I want to use Matrix
: to make cube transformation. The matrix dont work now. I cant use
: Worldmatrix make transformation, also use View- and ProjMatrix to
: change Viewport.
: ( use function
: DrawIndexedPrimitive(D3DPT_TRIANGLELIST, .......)
: )No matter how set this three matrix, I can only see one face of
: cube and this cube is forever in the left-up corner.
:
: But if I render other primitives without indexbuffer, its ok.
: ( use function DrawPrimitive(D3DPT_TRIANGLESTRIP,
: .......) )
: Why?
:
: I must work out every vertex position with matrix selbst when I use
: indexbuffer? Or maybe I forget something to set?
:
:
: