 | | Re: Maximum depth of ldraw models?
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(...) Well, typically the multiplies that occur for different studs have the same rotation and scaling aspects, the only thing different is the position. So instead of repeating the multiplication on the original matrix, if the top left 3x3 values (...) (18 years ago, 7-Sep-06, to lugnet.cad.dev)
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| | Re: Maximum depth of ldraw models?
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(...) Okay... 15% speedup is substantial... that means that it's better to pre-transform the subfiles when generating the operations for the current file. I won't worry about the maximum depth any more then. (...) How does a renderer know which (...) (18 years ago, 7-Sep-06, to lugnet.cad.dev)
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| | Re: Maximum depth of ldraw models?
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(...) Same here for LDView. LDView always flattens part geometry, and this seems to improve performance enough to be noticed. LDView does use a display list for each part, and a nested display list for each nesting level above that (as long as you (...) (18 years ago, 7-Sep-06, to lugnet.cad.dev)
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| | Re: Maximum depth of ldraw models?
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(...) MPD files don't add that many extra levels... usually only 2, isn't it? Further, the only stacking that generally needs to occur at the mpd level is modification of the modelview matrix, which opengl guarantees a minimum of 32. It's only in (...) (18 years ago, 7-Sep-06, to lugnet.cad.dev)
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| | Re: Maximum depth of ldraw models?
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(...) I tested the performance of, and saw a decent gain from flattening part geometry. (Perhaps 15% in BrickDraw3D for QuickDraw3D or OpenGL.) What this means is that when a part is prepared into a drawing list, it is not a list of calls to (...) (18 years ago, 7-Sep-06, to lugnet.cad.dev)
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