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 CAD / Development / *13706 (-20)
  Re: Rendering implementation details
 
(...) Actually, one can bring the number of transformations down to 1 for the entire _object_. Interesting what can happen when an idea sits in the brain and percolates for a couple of days. A new idea I had was to just transform the camera position (...) (20 years ago, 29-Jan-05, to lugnet.cad.dev)
 
  Re: Bricksaic version 0.1.0
 
(...) I ran into this too while betatesting. If you were using, for example, MLCad, it might be a problem with the color definitions that MLCad is aware of. Bricksiac is getting its color info from the ldconfig.ldr file in the install dir, I think. (...) (20 years ago, 28-Jan-05, to lugnet.build.mosaic, lugnet.cad.dev)
 
  Is there someone interested in making icons for me
 
Hello, I'am working on LD4DModeler V2 (see (URL) i want to make it better in every aspect over V1 am looking for some artist who is willing to make some (mostly) 16x16 pixel icons for me. I think people who used V1 know why I rather don't do it (...) (20 years ago, 28-Jan-05, to lugnet.cad.dev)
 
  Re: l3p as open source (was: Re: Anatomy of a POV file (e.g. L3P suggestions))
 
(...) I knew I'd forgotten something in here! That function sounds interesting and could help a bit, but I'm not sure it's possible to turn an .inc around, but I'll look into it when I get the time. Thanks -NB (20 years ago, 27-Jan-05, to lugnet.cad.dev)
 
  Re: Rendering implementation details
 
(...) I don't see it. Are you sure this works in the perspective projection? Because I can't quite figure out what the magic view vector is in that case. I think you'd need to calculate one view vector for each edge endpoint, which brings the number (...) (20 years ago, 25-Jan-05, to lugnet.cad.dev)
 
  Re: Rendering implementation details
 
Okay.... having had a day to think about it and a night to sleep on it, I think I've figured out something.... But it would only work if the optional lines were incident to edges of polygons that are part of the object being drawn. I'm not sure if (...) (20 years ago, 25-Jan-05, to lugnet.cad.dev)
 
  Re: Rendering implementation details
 
(...) I'm not 100% sure, but I believe most (if not all) of these outlining algorithms expect you to know the difference between the front faces and the back faces. It could be that they could be adopted for use when you don't have this information, (...) (20 years ago, 25-Jan-05, to lugnet.cad.dev)
 
  Re: Rendering implementation details
 
(...) I'm not sure it's possible to implement for real without serious slowdowns. It might be possible to implement in a vertex program, but I haven't studied vertex programs, so I really don't know. (I'm pretty sure you can't throw out a vertex (...) (20 years ago, 25-Jan-05, to lugnet.cad.dev)
 
  Re: Cross platform GUI
 
(...) The look and feel is one of the reasons why I rejected GTK (...) To me, compile times are a non issue. However the non-free nature of Qt leaves a bad taste in my mouth (and I not even a Open Source zealot). I can however develop a Qt based (...) (20 years ago, 25-Jan-05, to lugnet.cad.dev, lugnet.off-topic.geek)
 
  Re: Experimenting with camera.dat and look_at.dat
 
(...) It would be nice if there were also a part used to store points. It would then be declared at the end of the .pov file as a uniquely named vector. (20 years ago, 25-Jan-05, to lugnet.cad.dev)
 
  Re: Rendering implementation details
 
(...) You're right about the performance hit. We've discussed this issue previously on lugnet, because quite a few of the renderers out there use opengl (ldview, leocad, ldglite, Mac Brick Cad...) Source code is available for all of these if you (...) (20 years ago, 25-Jan-05, to lugnet.cad.dev)
 
  Re: Rendering implementation details
 
(...) Someone once suggested to me (Dan from Microsoft maybe?) that given today graphics libraries, one could probably get away with ignoring op-lines altogether and use edge detection. This would present a potential problem since edge color is (...) (20 years ago, 24-Jan-05, to lugnet.cad.dev)
 
  Rendering implementation details
 
I was envisioning how an LDraw renderer would be implemented if it were done with OpenGL, and I've arrived at some questions that I can't answer for myself. I'm particularly wondering about line type #5, the optional line. According to the LDraw (...) (20 years ago, 24-Jan-05, to lugnet.cad.dev)
 
  Re: Experimenting with camera.dat and look_at.dat  [DAT]
 
(...) I updated the camera.dat and look_at.dat so they don't need to be REMmed out: 0 ~Camera Position 0 Name: Camera.dat 0 Author: Tore Eriksson 0 Un-official part 2 24 -4 0 0 4 0 0 2 24 0 -4 0 0 4 0 2 24 0 0 -4 0 0 4 0 L3P IFNOTPOV 1 0 0 25 37 1 0 (...) (20 years ago, 24-Jan-05, to lugnet.cad.dev)
 
  Re: Experimenting with camera.dat and look_at.dat
 
(...) Yes,I am very well aware of the multitude of camera settings POV offers, and I haven't yet decided which way to go. The fastest way may be to run my own race using my own META statements: 0 LDA CAMERA.POSITION x y z 0 LDA CAMERA.LOOKAT x y z 0 (...) (20 years ago, 24-Jan-05, to lugnet.cad.dev, lugnet.cad.ray)
 
  Re: Cross platform GUI
 
Personally I don't think using GTK under Windows is a good idea. I've worked with it before and even released an application that used it and you won't believe the amount of people that have trouble using a Windows application with controls that (...) (20 years ago, 24-Jan-05, to lugnet.cad.dev, lugnet.off-topic.geek)
 
  Re: Experimenting with camera.dat and look_at.dat
 
(...) POV-Ray cameras can do alot. Besides just having a location and direction, you can have a zoom, focus, you can specify the direction in the form of "look at", and more. If you are going to have a camera.dat, you might consider having it be (...) (20 years ago, 24-Jan-05, to lugnet.cad.dev)
 
  Experimenting with camera.dat and look_at.dat  [DAT]
 
I created these three files and ran them through L3P: - - - - - 0 Test 0 Name: test000.ldr 0 Author: Tore Eriksson 1 2 0 0 0 0 0 -1 0 1 0 1 0 0 700.dat 1 15 0 -24 100 1 0 0 0 1 0 0 0 1 3001.dat 1 4 0 -48 100 1 0 0 0 1 0 0 0 1 3001.dat 1 15 0 -72 100 (...) (20 years ago, 23-Jan-05, to lugnet.cad.dev)
 
  Re: Parts editing made easy, anyone?
 
(...) I'm sorry if I was unclear. Earlier in the thread I put forward Bens wheels as an example and continued that example here. I realise they would not be eligible for inclusion in the official Ldraw library, and would not submit them. This thread (...) (20 years ago, 23-Jan-05, to lugnet.cad.dev)
 
  Re: Parts editing made easy, anyone?
 
(...) Maybe I'm missing the point here, but if this whole discussion is about Ben's excellent independently produced wheels, then whether or not they are modelled appropriately for inclusion in the official LDraw library is academic. The official (...) (20 years ago, 23-Jan-05, to lugnet.cad.dev)


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