#1
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Vizard automatically scaling image to an aspect ratio of 1:1
I want to present pictures with an aspect ratio different from 1:1 (meaning a square picture) as textures in Vizard. When I apply a texture to a surface with the same aspect ratio as the picture, Vizard still scales the image to a 1:1 aspect ratio. Because I'm working with a lot of pictures, the scaling of all the images takes time that I want to decrease. Is there any way to apply pictures without Vizard scaling them to an aspect ratio of 1:1?
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#2
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And here some code showing the 'problem':
Code:
import viz viz.go() viz.eyeheight(0) box = viz.add('box.wrl') box.setScale(1.5,1,0.001) box.setPosition(0,0,1.5) box.color(1,1,1) tex = viz.addTexture('worldviz-logo-white.jpg') box.texture(tex) |
#3
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OpenGL limits the texture resolution to always be a power of two (i.e. 16, 32, 64, 128, etc.). However this is not restricted to aspect ratio, so you can have 512x256 rectangular textures as well.
Actually I read that in newer versions of OpenGL, non power of two (NPOT) textures are supported, but I know too little about that to come up with a possible solution for you. My solution would be to find a Photoshop script that automatically places and fits every image in a 1024x1024 texture, and then edit the texture coordinates in Vizard to get the result you want. |
#4
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Hi Erikvdb,
Thanks for your suggestion! I did not manage to get Vizard working with non power of two textures, and I did not find/create a photoshop script to solve the issue like that. Ultimately, I just let Vizard load the program for 10 seconds. No big deal at the moment. If someone has a simple solution, then I'm all eyes/ears! |
Tags |
aspect ratio, scaling, texture |
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