OnscreenImage problem[ solved ]

Scripting Issues
#1

Hi, I have been using OnscreenImage for some time( adjusting only position and path of the image ) and noticed my images scale arent show correctly, becoming bigger than they are and disproportional, becoming very ugly. I repeat I havent messed with OnscreenImage scale, just image path and position, and my image is a power of 2 already( 512 x 1024 )

Do OnscreenImage really works? Are there better methods for displaying images on screen?

Thanks in advance

#2

Did you parent your OnscreenImage to aspect2d, or render2d?

Aspect2d automatically scales attached nodes dependent upon the width/height aspect ratio of the window, versus render2d, which just treats the window’s coordinates as absolute. (So you’ll get a distortion if you do not account for this in your OnscreenImage’s scale.)

#3

May I ask how would I go about parenting the image to aspect2d? I have tried

image.reparentTo(Aspect2d)

, but thats not quite right >_<

#4

it’s “aspect2d”, not “Aspect2d”.

#5

Well…I wasnt parenting the OnscreenImage, but since you said so, I tried both render2d and aspect2d. In both, without messing with scale the result is ugly.

Setting scale to 0.5 reduces the image, but its still incorrect, and using scale = 0.5, 1, 1 I get the best result, which is still quite blurry…

What should I do?

Thanks in advance

#6

You need to set the card to the same size as the texture. You can use egg-texture-cards to do this most easily, then load the card model and use it in place of the texture.

Use the parameter -p y,y on egg-texture-cards, where y is 1/2 your window height in pixels, e.g. -p 300,300 if your window is 800x600.

David

#7

sorry for the delay, have been busy with cg and testing onscreen image.

I used a blender python script to pixel perfect convert the texture to a 3d model, i then loaded the model at OnscreenImage and adjusted the scale with scale = ( 0.066 ). The result is a lot better, but is it the same as using panda3d texture to egg convert stuff?

I will continue to experiment here, thanks in advance

#8

Sure, that’s the same thing.

David

#9

Just a note:

You can alternatively do this to have a simple onscreen image:

the blender stuff I said before is because the latest blender release have a script on uv window>image>2D cutout image importer, which creates a pixel perfect texture model based on the image path you provided. You then export this to egg with chicken exporter.

#10

well, I must say which the egg-texture-cards terminal command is easier for me, now I use Linux ubuntu. I also discovered which my textures were blurry also because of them not being a power of 2(2,4,816,32,64,128,256,512,1025…).

My code for each image is as following now:

self.graphicname = loader.loadModel('/path')
		self.graphicname.setPos = ( x, 0, z )
		self.graphicname.setTransparency(TransparencyAttrib.MAlpha)
		self.graphicname.reparentTo(aspect2d)