use a second uv-set on your models

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Re: use a second uv-set on your models [Re: JetpackMonkey] #131514 06/04/07 01:42 06/04/07 01:42
Joined: Nov 2004 Posts: 862 Australia DavidLancaster User
DavidLancaster User Joined: Nov 2004 Posts: 862 Australia	Ventilator, I managed to get baking working in blender. I used a directional light for the sun, maybe it's how I uv mapped it but the baking turned out polygon/blockish. Not as nice as giles. Any hints? Clicking this link will make millions of good and wonderful happy explosions of joy inside you \| Rebel Planet Creations \| Development Videos

Re: use a second uv-set on your models [Re: DavidLancaster] #131515 06/04/07 13:01 06/04/07 13:01
Joined: May 2002 Posts: 7,441 ventilator OP Senior Expert
ventilator OP Senior Expert Joined: May 2002 Posts: 7,441	what do you mean with polygon/blockish? any screenshots? <edit> maybe you used [lightmap uvpack] for unwrapping (which doesn't seem to keep adjacent faces together where it makes sense)? [smart projections] worked better for me. </edit> i played around with it too. render baking doesn't seem to support multi sampling yet in blender. other than that it works quite well though. you could bake a bigger image and scale it down or blur it a bit to get rid of the jaggies. gile[s] also supports global illumination which blender can't bake into a texture yet.

Re: use a second uv-set on your models [Re: ventilator] #131516 06/04/07 14:55 06/04/07 14:55
Joined: Nov 2004 Posts: 862 Australia DavidLancaster User
DavidLancaster User Joined: Nov 2004 Posts: 862 Australia	Yeah I was talking about the jaggedness If it's just as easy to blur it I'll do that I didn't know about that smart projections plugin! It works really well thank you Another question. Is it possible to get surfaces with alpha to work with your second uv set plugin? Clicking this link will make millions of good and wonderful happy explosions of joy inside you \| Rebel Planet Creations \| Development Videos

Re: use a second uv-set on your models [Re: DavidLancaster] #131517 06/04/07 15:23 06/04/07 15:23
Joined: Oct 2002 Posts: 8,939 planet.earth ello Senior Expert
ello Senior Expert Joined: Oct 2002 Posts: 8,939 planet.earth	Quote: So far, from what I understand, this is the only way to get lightmapped meshes into 3DGS (that isn't baked and we all know baking isn't great). isnt this baking, too? the shadowmap is baked, or what? can anyone explain to me what is better with using this texhnique above using a completely baked texture (including material settings and lighting) ? i simply dont understand it, sorry

Re: use a second uv-set on your models [Re: ello] #131518 06/04/07 15:53 06/04/07 15:53
Joined: Sep 2003 Posts: 5,900 Bielefeld, Germany Pappenheimer Senior Expert
Pappenheimer Senior Expert Joined: Sep 2003 Posts: 5,900 Bielefeld, Germany	Quote: Pardon me for my newbiness,but why cant we bake the shadows in the skin directly and thus use a single skin ? I mean what is the advantage of this plugin ? Thanks. zazang Jetpack Monkeys answer: Quote: you can but then you cannot have multiple uv maps (e.g. one huge skin for the shadows while other textures repeat and maintain their resolution) So you can have a 128x128 pixel grass texture repeating, so it always looks 128x128. but then a single big image on top of that for shadows. This tool is mostly important for putting shadow maps on mdl entities without the huge memory hit that u get from baking your shadows directly onto huge textures http://www.puppenheim.org/ http://www.wuerfels-welt.de Old Game Tutorial: http://www.puppenheim.org/MITutorial.zip Free Game Editor: http://puppenheim.org/AlienalsWeihnachtsmann.zip http://www.puppenheim.org/blender_starting_main_settings.txt

Re: use a second uv-set on your models [Re: Pappenheimer] #131519 06/04/07 16:46 06/04/07 16:46
Joined: May 2002 Posts: 7,441 ventilator OP Senior Expert
ventilator OP Senior Expert Joined: May 2002 Posts: 7,441	ello, have a look at the example level. how would you achieve the same texture resolution of the grass for example if you baked everything into one image? you would need a 8192x8192 image or something like that. baking lighting and shadows requires that the uvs don't overlap. so you can't use tiling textures anymore if you don't have a second uv-set. @david: how alpha gets handled depends on the material. what would you like to do?

Re: use a second uv-set on your models [Re: ventilator] #131520 06/04/07 23:31 06/04/07 23:31
Joined: Nov 2004 Posts: 862 Australia DavidLancaster User
DavidLancaster User Joined: Nov 2004 Posts: 862 Australia	My level would be comprised of 2 main models, the mesh (including collision) and the foliage. I want the foliage to be lightmapped but so far I'm not sure how to get the transparency to work (using the default material transparent areas turn out black). How would I go about getting the transparency to work? Thank you Clicking this link will make millions of good and wonderful happy explosions of joy inside you \| Rebel Planet Creations \| Development Videos

Re: use a second uv-set on your models [Re: DavidLancaster] #131521 06/04/07 23:40 06/04/07 23:40
Joined: May 2002 Posts: 7,441 ventilator OP Senior Expert
ventilator OP Senior Expert Joined: May 2002 Posts: 7,441	hm... you could post a simple example of your foliage model and its textures so that i (and others) can experiment with a material for it. i think i know how it would work with a shader but the confusing fixed function pipeline always takes lots of experimentation.

Re: use a second uv-set on your models [Re: ventilator] #131522 06/05/07 00:25 06/05/07 00:25
Joined: Nov 2004 Posts: 862 Australia DavidLancaster User
DavidLancaster User Joined: Nov 2004 Posts: 862 Australia	I uploaded it here: http://www.churness.com/axys/TGADemo.zip It needs a dll, and I've just used your code base/setup as I haven't had time to strip it down. Let me know if you can help, it seems really abstract to me as I've never looked into shaders heaps Thank you Clicking this link will make millions of good and wonderful happy explosions of joy inside you \| Rebel Planet Creations \| Development Videos

Re: use a second uv-set on your models [Re: DavidLancaster] #131523 06/05/07 00:51 06/05/07 00:51
Joined: May 2002 Posts: 7,441 ventilator OP Senior Expert
ventilator OP Senior Expert Joined: May 2002 Posts: 7,441	i can't open that zip.

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