 | | Re: 3D Transformations Architecture Question
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(...) Well thanks for spoiling my day :) I tried orions file and discovered a design flow in my new LD4DStudio renderer. It looks like this: (URL) seems Orion uses the rotation matrix to mirror some parts, this totally F-ups my normals :( And there (...) (19 years ago, 13-Jul-07, to lugnet.cad)
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| | Re: 3D Transformations Architecture Question
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(...) Sorry. I guess I didn't fully understand why you wanted to do the pre-multiplies. Hopefully this reply will be closer to what you are looking for. LDView 1.0 did exactly what you suggest. It calculated the final coordinates for every single (...) (19 years ago, 13-Jul-07, to lugnet.cad, FTX)
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| | Re: 3D Transformations Architecture Question
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(...) Travis, Thanks, but that answer is exactly what I was trying to avoid in this discussion. I understand about creating a transformation matrix, a camera matrix and a projection/perspective matrix. I understand about compositing them all for a (...) (19 years ago, 13-Jul-07, to lugnet.cad, FTX)
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| | Re: 3D Transformations Architecture Question
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(...) Actually, based on what you write after the above, this is a "How do you draw in 3D?" question, which is fairly close to "How do you do 3D?". The implementation details of how 3D gets drawn to the screen tend to answer all your questions. When (...) (19 years ago, 13-Jul-07, to lugnet.cad, FTX)
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| | Re: 3D Transformations Architecture Question
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Basically you keep 1 copy of the object with its vertices in their original position (local or model space). You take the local to world, world to view, view to projection and projection to viewport matrices and multiply them to get a single (...) (19 years ago, 13-Jul-07, to lugnet.cad)
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| | 3D Transformations Architecture Question
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Feedback from the guys who built the viewers (LDGlite, LDView, etc) would be really great on this. I have a project, not Lego, but similar and I'm writing some software for 3D viewing and manipulation of items. The LDraw architecture is a good match (...) (19 years ago, 12-Jul-07, to lugnet.cad)
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| | Re: LDD goes Technic
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(...) I must say they chose a very creative solution to the issue of how to run cables :) (so as not to tease, each end of a cable is represented by the modular connector and a small length of wire. Colored arrows are used to match up which end runs (...) (19 years ago, 11-Jul-07, to lugnet.general, lugnet.cad)
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| | LDD goes Technic
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OK, it looks like the Mac version isn't quite ready for prime-time, but I'm curious if anybody else has noticed this: (URL) tried it out yet? I've got one model (my NXT remote) already made, and the learning curve was far easier than I expected (it (...) (19 years ago, 10-Jul-07, to lugnet.general, lugnet.cad)
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| | Re: Optional Lines Calculator utility
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(...) Now, not know !!!! Philo (19 years ago, 6-Jul-07, to lugnet.cad, FTX)
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| | Optional Lines Calculator utility
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I know host (URL) OLC>, a neat program written by Richard Baxter which calculates conditional lines of a LDraw file. I have also made some minor improvements to my own (URL) Isecalc> and (URL) Linetrim>. Enjoy, Philo (19 years ago, 6-Jul-07, to lugnet.cad, FTX)
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