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jPCT - a 3d engine for Java => Support => Topic started by: zammbi on September 26, 2010, 06:51:17 am
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So I was trying out my new obj cave model but when I loaded the textures, things really got messy. But when I used hardware mode everything was fine again. Bug? solutions?
Software mode:
(http://i51.tinypic.com/24b8as0.jpg)
Hardware mode:
(http://i53.tinypic.com/t7mohz.jpg)
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Are these polygons just black or are they missing at all? Any unusual log messages?
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Just black. I seem to found the issue. It only happens when I turn on mipmapping.
No unusual messages that I can see.
I could send over the model if that helps you solve it.
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Yes, models and textures please. Seems to be a problem in software renderer's mipmap generation or calculation code then.
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...still waiting for the model... ;)
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Sorry I been busy, been meaning too. I'll upload it after work today.
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Sorry for the delay. Have too much to do lately.
Here's the files.
http://www.mediafire.com/?damm6rkqlatqp2m
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Can't access it, it's set to private... :(
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Woops, sorry about that. Try now.
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The download works fine now. However, i can't verify the problem. Everything works as expected in my tests. But it may be caused by the size of those textures. They are 2048*2048. which is huge. Creating mip maps for these beats requires some memory, because it creates a new image from the pixel data (which is 16mb for one texture alone), i.e. 16 mb pixel data + 16mb image + the scaled instances and the pixel data of those leads to some serious memory usage. Maybe it's running into an OutOfMemory-Exception that somehow gets swallowed by your code leaving the generated mip maps in some in-between state.
BTW: 2048*2048 is pretty huge anyway. It will cause bad performance of the software renderer due to cache misses and it's not cheap on slower hardware either. Consider using a reduced version of the textures.