Hi, I’m new in this forum and this is my first topic (And my english is bad)

My question is: There is a way to use a BitmapData instead of a background color in a View3D instance ? (something like a backgroundBitmap property)

Yes, I could use a textured plane in the back of all objects, but I really don’t know how to do it (correctly). My purpose is just to test and benchmark Augumented Reality using fp11. If I discover something, I’ll post in this topic.
Thanks

This is one that’s been requested quite often, so I added a View3D::backgroundImage property. Have fun with it

Oh thanks! (:

nice! Welcome to the forum, Flavio. You have already made quite an impression

Thanks, David! Been wanting that quite a while myself.

It seems that View3D resizes the backgroundImage into a square.

This feature is almost perfect, but my backgrounds need to be rectangular. Or at the very least it should tile instead of “smearing.”

If you update to the latest source on GitHub, you can now do:

Thanks Alejandro. I did a fresh git pull from away3d-core-fp11 and recompiled with the flag you provided, but now the texture doesn’t appear at all. What up with that?

iwoj, I made some thorough testing again today and I don’t seem to be having a problem, can you show me a snippet of the code you are using? size of image? thx

  camera = new Camera3D();
  camera.z = -150;
  view = new View3D(new Scene3D(), camera);
  view.antiAlias = 4;
  var starField:BitmapData = new StarFieldBitmapData();
  view.backgroundImage = starField;
  view.backgroundImageFitToViewPort = false;
  scene = view.scene;

The StarFieldBitmapData class is a a library Bitmap in my Flash Professional CS5 .fla file. It’s a 2500 x 1250px JPG file.

Does that help at all?

Textures in Away3D 4.x must NOT exceed 2048px per side.
I’ve tried the bg image with a 2048x2048px size image and it works just fine.

you mean must not exceed 2048 px rght?

yeah, thanks Choons, Sunday morning typo error… (post edited)

Thanks Alejandro.

I tried updating the Flash graphic asset with a texture that is 2048 x 1250, but it didn’t appear. I also tried 1024 x 1024, but no luck. I’m probably missing something obvious. Any ideas?

how about simplifying your initialization to only:

view = new View3D();
view.antiAlias = 4;
view.camera.z = -150;

get rid of that scene = view.scene line and the view3d parameters and just let it initialize the camera & scene by default and see if that makes a difference.

Also it looks like you may need to do

var starField:BitmapData = new StarFieldBitmapData().bitmapData; <—?

Thanks for the code cleanup. It does simplify it, but it didn’t change the the scene at all.

StarFieldBitmapData is already a BitmapData object, so it doesn’t have a bitmapData field.

I never was able to get backgroundImageFitToViewport = false to work, so I just dropped my image below 2048 pixels to get rid of the smear.

Alejandro: could you describe your test code and assets?

I encountered a problem when i use View3D::backgroundImage property: my view is 1024*768, and backgroundImage is 1024*1024, so backgroundImage is stretched, this is not what I expected, when i use backgroundImage with 1024*768, the backgroundImage doesn’t appear at all, beacause it isn’t BitmapData Valid.
how to deal with this issue ?