Thanks Pete, I guess there isn't much we can do about it until Adobe does so. Appreciate your thoughts!
K On Oct 15, 9:38 pm, Peter Kapelyan <[email protected]> wrote: > Hi Kelvin, > > That's a nice workaround (resampling the bitmap every frame), but > unfortunately has it's drawbacks. That will only work well (and can only be > calculated) on a flat plane facing perfectly forward. On any other (and > most) of the primitives and 3D objects it won't be as effective. > > It would be a nice addition as a material for a flat forward facing plane. > Unfortunately your problem still boils down to Flash not being able to down > sample pleasantly, and you would need to find a custom solution the same as > if you didn't use Away3D, and just plain Flash. > > Please keep in mind, Away3D is not rescaling the bitmap everyframe, it is > being kept the same size as the source, even if it is far away from the > camera. It is exactly the same as you scaling down a bitmap in Flash by > itself. > > I wonder why Adobe doesn't do something about it. Flash would deliver much > better graphical quality if they did. > > -Pete > > > > > > On Thu, Oct 15, 2009 at 8:29 AM, Kelvin <[email protected]> wrote: > > > Hi Peter, > > > Thanks for your reply. > > > The texture that we are handling is acutally not being re-scaled at > > all on Away3d. It is 1:1. > > > However, I guess when away3d sets the camera and render, it uses > > certain flash functions such as beginBitmapFill that adopts nearest > > neighbour for down sampling. The problem seem to be, if a 3d object is > > further apart from the camera, Away3d is effectively rescalling the > > texture as it draws output on screen. > > > Understand that Away3d can also use bitmapData.draw() for rendering, I > > wonder if there is a away to replace the core "re-scaling for render" > > function in Away3d to some codes that adops bilinear down sampling > > similar to the site below. > > >http://www.brooksandrus.com/blog/2009/03/11/bilinear-resampling-with-... > > > It seems to me like it is about relplacing bitmapData.draw() with the > > below codes? > > > --------------------------------------------------------------------------- > > ------------------------------------------------- > > var temp:BitmapData = new BitmapData( sourceWidth, sourceHeight ); > > temp.draw( source ); > > > var output:BitmapData = new BitmapData( outputWidth, outputHeight ) > > var matrix:Matrix = new Matrix(); > > matrix.scale( outputWidth / sourceWidth, outputHeight / > > sourceHeight ); > > output.draw( temp, matrix, null, null, null, true ); > > temp.dispose(); > > > --------------------------------------------------------------------------- > > ------------------------------------------------- > > > Any guidance is appreciated. > > > Cheers > > Kelvin > > p.s. my fellow developer helped me post the original questions. > > > On Oct 10, 11:28 pm, Peter Kapelyan <[email protected]> wrote: > > > Hi Kelvin, > > > > Sorry about your problems, however this is not Away3D's fault at all. > > > > If you try your experiment with just Flash (not Away3D) you will notice > > the > > > same thing. This is a flaw of the Flash software. > > > > You have a couple of options in Flash, and the same applies to Away3D. > > > > A few ideas are: > > > > 1. You can use a much smaller texture, up scaling works much better than > > > down scaling. > > > > 2. You can blur your texture a bit > > > > 3. Your best option is to use the same texture dimensions you would > > expect > > > to see at 100%. > > > > Hope it helps you > > > > -Peter > > > > On Sat, Oct 10, 2009 at 5:57 AM, vkt <[email protected]> wrote: > > > > > Hello, > > > > > We are experiencing problem applying texture in small fine strips and > > > > checks. > > > > > Those images has been prepared to proper scale for direct application, > > > > but the Away3d outputs often carries significant down-sampling > > > > artifacts. > > > > > Smooth has been set to true. We have also not done anything with > > > > scale. But it still looks like as if Away3d is down-sampling with > > > > Nearest Neighbor. > > > > > Appreciate any thoughts. > > > > > here some link about my quesion. > > > >http://www.xs4all.nl/~bvdwolf/main/foto/down_sample/down_sample.htm<http://www.xs4all.nl/%7Ebvdwolf/main/foto/down_sample/down_sample.htm> > > <http://www.xs4all.nl/%7Ebvdwolf/main/foto/down_sample/down_sample.htm> > > > > > Thanks > > > > Kelvin > > > > -- > > > ___________________ > > > > Actionscript 3.0 Flash 3D Graphics Engine > > > > HTTP://AWAY3D.COM > > -- > ___________________ > > Actionscript 3.0 Flash 3D Graphics Engine > > HTTP://AWAY3D.COM
