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Performance Problem

Started by Moltopulp Aug 7, 2002 at 3:10 PM 6 replies 350+ views

Original Post

Aug 7, 2002 at 3:10 PM

Hi to all... I''m doing a simple engine 3D and i have seen that engine performance is very strange... When i use hardware vertex processing i obtain a lower framerate, g_pD3D->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_HARDWARE_VERTEXPROCESSING, &d3dpp, &g_pd3dDevice ) ) ) while when i use software vertex processing i obtain better performance. g_pD3D->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp, &g_pd3dDevice ) ) ) I have a GeForce4MX440.... Any suggestion? Thx, Alex

Dreddnafious Maelstrom

272

Dreddnafious Maelstrom

Aug 7, 2002 at 3:30 PM

Get a Geforce3, much better bandwith, and then sue NVidia.

Dreddnafious Maelstrom

"If i saw farther, it was because I stood on the shoulders of giants."

Sir Isaac Newton

thedo

Aug 8, 2002 at 2:00 AM

BATCH BATCH BATCH!!!

Your probably not batching sufficintly (same texture, same renderstate, same texturestate, so on). HW T+L is much more sensitive to poor batching so BATCH your states.

Neil

WHATCHA GONNA DO WHEN THE LARGEST ARMS IN THE WORLD RUN WILD ON YOU?!?!

Moltopulp

Author

Moltopulp

Aug 8, 2002 at 9:09 AM

Hi, i have done some change in my engine.
I have another question: my engine speed up when runs in a window, while is slower when i''m in fullscreen.
Moreover in fullscreen my engine runs at 60 fps and don''t go over this value...
Any suggestions?

Thx

tok_junior

Aug 8, 2002 at 9:22 AM

Don''t lock your updated to vertical blank.

--
MFC is sorta like the swedish police... It''''s full of crap, and nothing can communicate with anything else.

thedo

Aug 8, 2002 at 9:23 AM

It wont go over 60 Hz because VSync is enabled. Disable it.

Neil

WHATCHA GONNA DO WHEN THE LARGEST ARMS IN THE WORLD RUN WILD ON YOU?!?!

Moltopulp

Author

Moltopulp

Aug 8, 2002 at 10:08 AM

Thx to all....
I had the VSync Enable.....

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