Original Post
I have a quad engine the im using to draw an isometric map. I'm using static indexed primitives to draw about 200 tri's. For some reason, if I have meshes and other stuff I get high frame rates, I can add in all kinds of other code and it doesn't slow down a hair, but with the 200 tri's it's slow ass malassis. They are all using the same texture, which is 256x256 in memory. This is the indexed primitive code.
Can someone tell me what here might be slowing it down almost to a crawl?
If I comment out just the render call, the FPS shoots right back up to normal. So it's not the creation or memcpy of the map. Just the render.
????????
Any ideas?
Thanks, Insodus
[edited by - Insodus on April 18, 2002 11:11:18 AM]
[edited by - Insodus on April 18, 2002 11:12:24 AM]
void Direct3D::CreateIndexedVertexBuffer(DWORD flags, LPDIRECT3DVERTEXBUFFER8 & vertbuff, LPDIRECT3DINDEXBUFFER8 & indbuff, int size, int num_elems, int num_inds) {
pD3DDevice->CreateVertexBuffer(size * num_elems, D3DUSAGE_WRITEONLY, flags, D3DPOOL_DEFAULT, &vertbuff);
if( FAILED(hRet) ) {
MainErr->HandleError(__FILE__, __LINE__, CRITICAL, D3D_ERROR, "Error creating vertex buffer.", hRet);
}
pD3DDevice->CreateIndexBuffer(sizeof(WORD) * num_inds, D3DUSAGE_WRITEONLY, D3DFMT_INDEX16, D3DPOOL_DEFAULT, &indbuff);
if( FAILED(hRet) ) {
MainErr->HandleError(__FILE__, __LINE__, CRITICAL, D3D_ERROR, "Error creating vertex buffer.", hRet);
}}
inline void Direct3D::RenderIndexedBuffer(D3DPRIMITIVETYPE type, DWORD flags, LPDIRECT3DVERTEXBUFFER8 vertbuff, LPDIRECT3DINDEXBUFFER8 indbuff, int size, int num_elems, int num_inds) {
pD3DDevice->SetStreamSource( 0, vertbuff, size );
pD3DDevice->SetVertexShader(flags); pD3DDevice->SetIndices( indbuff, 0 );
pD3DDevice->DrawIndexedPrimitive(type, 0, num_elems, 0, num_inds / 3);
}