Okay, so…
imageObject = OnscreenImage(image = 'img/myimg.png', pos = (0, 0, 0))
imageObject.setTransparency(TransparencyAttrib.MAlpha)Something wrong with this? My image is 512x256 i also tried 512x512 and non-transparent, but in all cases my image is scales to fit the screen
Yeah, that’s the expected behavior. Anything wrong with that?
Why is it scaled ?
It’s not scaled. That is a scale of (1, 1), which means the quad fills the whole screen.
what?
Oh, now I see the images in your previous post. If it’s bothering you that the aspect ratio is not the same, you should apply a scale to the texture to correct it, or I’ve heard that you can pregenerate cards using egg-texture-cards as well (search the forums for that).
Is it always like this cause I dont see the point?
I will. Wonder what that is
It’s just how that works in a 3D engine. A quad is generated with vertices in 0…1 range, and the texture is applied with the texture coordinates 0…1 matching to the quad UV coordinates 0…1.
Notice that in a 3D engine, a texture’s pixel coordinates don’t matter. Texture coordinates are in the 0…1 range, both width and height, regardless of the aspect ratio.
I think irrlicht doesnt scale your images…
Neither does Panda3D. As I said, your image is unscaled.
[size=92](actually, that’s not 100% true, as it’s scaled in the X by 0.75 to compensate for the window’s aspect ratio, so Panda does even do an effort to counter-scale your images.)[/size]
I am confused
Quote of the day : “stop your lazyness, or it will stop you”
search search search
discourse.panda3d.org/viewtopic.php?t=4151
I think irrlicht doesnt unscale images
(I love panda).
You do know that “unscaled” means the absence of any scaling, right? 
Apparently, irrlicht does scale your image in order for it to be a pixel-perfect match on screen.
oh…
How about a feature request?
I guess we could implement some kind of node in the 2d scene graph that automatically rescales to match one pixel, but I think there’s little use for such a feature, as game UI’s usually must be scalable.
On the other hand, it wouldn’t be hard to add that.
drwr, what do you think? We could provide a base.pixel2d (or so) that is reparented to base.a2dTopLeft and has a scale of (1/winwidth, 1/winheight) so that you just need to do image.setScale(imgwidth, imgheight) for it to have a pixel-perfect size.
my image is 512x256 and the screen is 800x600. What values would you give to setScale() ?
You mean to make it pixel-perfect? You’d need to specify parent=render2d in the OnscreenImage, and specify a scale like this:
img.setScale(512 / 800.0, 1, 256 / 600.0)Yeah, thanks.
Thats resolution dependant huh?
Yeah. When the window is rescaled you’ll need to adjust that.