Regardless of whether a DisplacementFilter solution would be faster or slower I still think it's worth investigating how we could come up with a decent fast way to generate displacement maps on the fly out of a given set. I know Alan has mentioned that he doesn't think it's possible to cut up the bitmaps and apply partial displacement maps, at least not in a practical way, but I'm ruminating a couple of ideas on how we might go about it. Doing so might give something usable for Sandy, or not, but nevertheless it would be quite the useful thing.
Patrick Thomas wrote: >Hi all, > >Patrick, > > >>I'm still thinking there might be a way to make this all >> >> >significantly faster > >Hum what kind of optimization are you thinking about? >You can fastly have a textured 3D object. THe problem with the >panomaker is that we have to slice the bitmap into several triangles >to make the distortion correct because of the large bitmap. > >Patrick I think your idea of displasment filters is interessting, but >i'm pretty sure it will not be faster. But if someone want to try it, >please do :) > >The main problem with Flash hack texturing is it is using a skew of a >small part or the bitmap. Others 'real' 3D engines are using a drawing >system very different from the one we use in Flash. A pixel based >operation (like bi-linar interpolation and more) are needed to have a >perfect texture. But Flash (at least with player 8) can't do this (it >will be much slower!). >Andre Michelle has implemented a real 3D engine with Z-buffer in >player 8.5. In this case the texture is quite perfect. So until AS3 >I'll not be able to improve this. > >The Panomaker is a great thing, but it's not what Sandy is designed for. >3D in Flash will always be limitated, and Panomaker requires a >specific engine designed for this application. Sandy wants to be >generic, as complete as possible. > >But i'm sure AS3 brings a lot of new possibilities, and I'm waiting >the BETA of player 8.5 to begin the migration ;) > >++ THomas / kiroukou > >2006/1/29, Alan Shaw <[EMAIL PROTECTED]>: > > >>On 1/28/06, Pablo nopixels <[EMAIL PROTECTED]> wrote: >> >> >>>Yes, Sandy is really cool, but my Pc is running 3 f/sec, your demo is >>> >>> >>running really slow with the panorama demo, is it gonna work always like >>that? >> >> >>To summarize the discussion of speed in this thread: some optimizations >>could be possible on this version, but the real improvement will come when >>we have the AS3 version of Sandy. >>(We're just talking about the texture mapping here. Other Sandy functions >>are pretty fast.) >> >> >> >>>I would like to add a video_mc instead an _mc, so i will try to add a mc >>> >>> >>instead the bitmap, can i do that? >> >> >>Well, that's interesting. A video pano? No, you can't use an mc directly, >>but maybe you can get the bitmap from the video once every frame and map >>that. Sounds like it will run slowly, but I would like to see an experiment >>like that! >> >>-A >> >> >> >> >>_______________________________________________ >>osflash mailing list >>[email protected] >>http://osflash.org/mailman/listinfo/osflash_osflash.org >> >> >> >> >> > >_______________________________________________ >osflash mailing list >[email protected] >http://osflash.org/mailman/listinfo/osflash_osflash.org > > > _______________________________________________ osflash mailing list [email protected] http://osflash.org/mailman/listinfo/osflash_osflash.org
