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jPCT-AE - a 3d engine for Android => Support => Topic started by: huhu on April 07, 2015, 12:18:14 pm
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There seem to be minimum dimensions. A Primitives.getSphere is not shown when the "scale" is smaller than 0.5? I didn't see something like this mentioned anywhere.
Btw. in the doc it is not told what the "scale" parameter means.
Or are there minimum camera distances etc?
For days I am now trying to show small objects (scale 0.05 range) and I don't get to see them ...
Can the world be scaled altogether or something like that? Or do I have to scale all my objects?
... ok ... now I adjusted Config.nearPlane AND(!) set Config.glIgnoreNearPlane to false, so I see something. But apparently many points collapse, so where do I set this? Can I?
EDIT 2: My coordinates are about in a range of 50.000 to 50.010, is something like this possible or do I have to move everything to center it around the 50?
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There's no actual limit but the accuracy of floating point math. The only suggestion that i can give is to use 'reasonable' values...not too large and not too small.
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I read somewhere about points being collapsed, can't remember where and there must be a minimum?
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They will be collapsed only if they share the exact same coordinate. If the getSphere()-method really produces these results, it might be an accuracy issue inside that particular method. Try the one from ExtendedPrimitives instead or use a karger scale for creation and scale it down afterwards.
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I think relative to absolute coordinates somehow were to small. I scaled everything by 1000, then moved everything so that the first point is origin. Now I see it :)