PureBasic Forums - English

I'm sad... My game turn perfectly on my machine but seems to hang on another one ( with a smaller video card for example )... It seems to be the sprite3D... I've two solutions: i restart the code at zero and i pass my game to the 640*480 ( it's on 800*600 now.. it seems that in 640*480 or in 800*600*32 it don't hang )...
or i let the choice to the user ( full details with full sprite3D or normal with less ).

I guess the optional choice is the best ! No need to restart from scratch and good GFX owners will be happier with high resolution and nice effects.

It turns good for you? When it's critical ( megabomb, phoenix, enemy ships, asteros... )?
no hang? With what kind of machine ? ( because i can't test it on a slower machine.... )
I'm scarry with second level ( lot of sinus waves for the water and other effects )... The sprite engine ( not 3D ) : does it support many MANY larger SPRITES without problems ( i need to know before continue ).. if yes, it's SPRITES 3D For sure..

another optimazion would be using the squares of values if you have to calculate distance because calculating with dist^2 is worlds faster than calculating many dist=sqr(X^2 + y^2) ...

means

use dist=X^2+Y^2 instead of dist=sqr(x^2+y^2) but ^2 all other distance values too which you need to compare ...

one thing to sprite 3D: use them only in 2^x X 2^x width and heights because otherwise many cards won't show them, for example 256x256 or 128x128

3D sprites use a lot of GFX card power so if you use too much, it will be slow for sure. I suggest to do 2 modes switchable at start, one for lowend config and another one for high end, so everyone is happy..

Thanx fred, but i've found a little trick to optimize and now the game runs perfectly on a little machine with full details!!! i'm happy!!! but tired...