neilcoal wrote:thanks, i was only asking about a solution to make ANY directdraw game look better (tricking either the game or the videocard to start using direct3d or opengl features)
cheers
Well.. "better" is in the eye of the beholder. Any modification to the original art is going to lose some information (by generating new data).
The "halfnhalf" filter (scale up with point sampling, then continue with bilinear) works pretty well in my opinion since it makes games look more or less like they did on worse quality monitors back then =)
As for just bilinear, or applying morphological AA or some such, those techniques may make the game look better, but at the same time they make some assumptions on the source data that was definitely not there when people still used deluxe paint 2 as the primary art authoring tool..
And as to the "any ddraw game", apparently doing a 100% functional ddraw re-implementation is nearly impossible. Thus, all approaches (apart from wine) aim some specific games.