mike Posted June 6, 2003 Share Posted June 6, 2003 hi, has anyone an idea, how to render a "normal-map" like in maya or max with houdini ???? Quote Link to comment Share on other sites More sharing options...
mike Posted June 6, 2003 Author Share Posted June 6, 2003 just for better understanding Quote Link to comment Share on other sites More sharing options...
old school Posted June 6, 2003 Share Posted June 6, 2003 See my answer on the sesi forum: render out surface normals Quote Link to comment Share on other sites More sharing options...
mike Posted June 6, 2003 Author Share Posted June 6, 2003 my answer also there Quote Link to comment Share on other sites More sharing options...
anakin78z Posted June 6, 2003 Share Posted June 6, 2003 Ok, here are my findings. It was a pain in the ass to do, and I feel that I need to go take a walk, but I suppose if someone were to set up a pipeline this could actually be somewhat unpainful. Here are my findings: mantra -u (to render an unwrapped uv image) does not work in houdini 6 mantra -u works in 5.5, but only if you render to an ip. if you save to file, you're screwed. Deep raster N is useless, cause you can't save you a deep raster layer as a seperate file. Oh, I know this should be easy, and it seems like it would be, and if you have any idea how to do this, I'd like to hear about it. When you hit the little viewer icon in a file load, it doesn't show you floating point values. That one drove me nuts. Anyway, the first pic is the actual deformed geometry, the second is the normal map, and the third is a flat grid with the new normals applied. -Jens Quote Link to comment Share on other sites More sharing options...
AndrewVK Posted June 7, 2003 Share Posted June 7, 2003 For H6.0 try "mantra -u /obj/mymodel:uv" Quote Link to comment Share on other sites More sharing options...
AndrewVK Posted June 7, 2003 Share Posted June 7, 2003 "Deep raster N is useless, cause you can't save you a deep raster layer as a seperate file. Oh, I know this should be easy...." works fine Quote Link to comment Share on other sites More sharing options...
AndrewVK Posted June 7, 2003 Share Posted June 7, 2003 for example... mantrau.zip Quote Link to comment Share on other sites More sharing options...
AndrewVK Posted June 7, 2003 Share Posted June 7, 2003 I'm using "P (object space) Map" instead of NormalMap in this example. "Step1_RenderMap" should be launched from the Output Editor, not the viewport! The displace in the corner is wrong because of watermark. Everything should be fine in retail version. finished.zip Quote Link to comment Share on other sites More sharing options...
old school Posted June 7, 2003 Share Posted June 7, 2003 mantra -u (to render an unwrapped uv image) does not work in houdini 6 It's still beta and only works on Polys and vertex uv's right now. Even then, it may not work all the time. For example a default poly sphere won't work with polar uv's but that same sphere as a mesh converted to polys does. Why not send in all the cases that don't work to me to jeff@you-know-where.com (**I hate spam trollers**) and I'll collect them all to send on to R&D. Apprentice and Houdini files please. zip them up too. -jeff Quote Link to comment Share on other sites More sharing options...
anakin78z Posted June 7, 2003 Share Posted June 7, 2003 hehe, I think I was having a bad day yesterday. Actually, I was not able to render straight to a file. The render would crash halfway through every time, so my only option left was to save from ip, where I wasn't able to save the deep raster layer. Rendering from H6 just didn't work at all. But anyhoo, I didn't mean to sound so grouchy. Cheers, Jens Quote Link to comment Share on other sites More sharing options...
michael Posted June 7, 2003 Share Posted June 7, 2003 I knew I shouldn't have registered you-know-where.com Quote Link to comment Share on other sites More sharing options...
old school Posted June 8, 2003 Share Posted June 8, 2003 One of the programmers installed spam assassin on my linux box and it traps 99% of the spam. Fantastic! But the spam in general I receive has sky-rocketed in the last couple months. Guess I am a bit gunshy now. Quote Link to comment Share on other sites More sharing options...
Stremik Posted June 8, 2003 Share Posted June 8, 2003 Hey guys. What is the purpouse of the normal map? What I mean is, applying normal map to a low res model makes it smooth and everything but to create this normal map you have to model a high res model first, right? Would be a different story if one could create normal map from photo! That would be exciting. Quote Link to comment Share on other sites More sharing options...
mike Posted June 9, 2003 Author Share Posted June 9, 2003 ........What I mean is, applying normal map to a low res model makes it smooth and everything but to create this normal map you have to model a high res model first, right?...... yeah, thats right. We have the high res models for "cuts-scenes". The normal-maps are used with low-res models in the game-engine to get close the same look. .......mantra -u works in 5.5, but only if you render to an ip...... It is right, that the output from mantra -u is working with 5.5x , but not really with 6.x .....Would be a different story if one could create normal map from photo! That would be exciting. ..... If you can make this working, I think you will get sone "animation-nobel-award" Thanks for all replies.. Quote Link to comment Share on other sites More sharing options...
edward Posted June 9, 2003 Share Posted June 9, 2003 AndrewVK's file doesn't work? Quote Link to comment Share on other sites More sharing options...
AndrewVK Posted June 9, 2003 Share Posted June 9, 2003 works fine. H 6.0.286Ap Win2k Quote Link to comment Share on other sites More sharing options...
mike Posted June 10, 2003 Author Share Posted June 10, 2003 ........works fine. H 6.0.286Ap Win2k Yes ! thanx Andrew VK Quote Link to comment Share on other sites More sharing options...
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