Bump Mapping with GU

[anmabagima]

Hi there,

is there a way of having bump mapping on an object rendered with a texture using GU ? I've seen that on Windows DX and OpenGL are capable of, but was unable to find a way on PSP. Have any one of you solved this issue ?

Regards,
anmabagima

[Raphael]

Hi there,

is there a way of having bump mapping on an object rendered with a texture using GU ? I've seen that on Windows DX and OpenGL are capable of, but was unable to find a way on PSP. Have any one of you solved this issue ?

Regards,
anmabagima

The psp gu does not support hardware bumpmapping of any kind. Your only option would be fake-bumpmapping with paletted textures or full software bumpmapping.

[anmabagima]

Hi,

thanks. That is not what I've hoped to hear. Did you have expiriences with "fake" bump mapping ? Is there a best practice available ?

Thanks.

[Raphael]

No best practice, but here is a good reading on how to achieve bump mapping or similar per-pixel-effects via paletted texture mapping:
http://vcg.isti.cnr.it/activities/geome ... pping.html

[anmabagima]

Hi,

thanks for the link. I will check that out.

Regards

[a_noob]

Cheers raph! I think I might just give that a go, could never hurt as another feature to my engine ;) Along with my fullscreen 4xAA and fullscreen and or selective glow/bloom. If both are ran together I get about 60fps if they are seperate I can get about 260fps, gfx are fun to play with kids!