How do textures work?

Kingknight SiMelon	How do textures work? « on: August 11, 2009, 12:14:35 am »
The Hunter Reputation: +0/-0 Offline Gender: Posts: 495	How do textures work? how do i put them in the right spot to wrap around the model etc. Logged
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Re: How do textures work?

« Reply #1 on: August 11, 2009, 12:17:36 am »

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How do textures work? Well a texture is just a grid of pixels. If your refering to texture mapping, the actual process of appling a texture to a set of triangles / model, then its pretty simple;

Basically each vertex in a model has a UV value set to it. This basically defines a point within the texture (top-left of a texture is UV 0,0 bottom-right is UV 1,1). When a triangle is rendered using the vertexs, the rasteriser basically takes the UV coordinates of all 3 vertexs, and applies that segment of the texture to the triangles face.

Thats pretty much it, nothing complex.

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Kingknight SiMelon	Re: How do textures work? « Reply #2 on: August 11, 2009, 12:24:28 am »
The Hunter Reputation: +0/-0 Offline Gender: Posts: 495	ok i kinda get it. is there a diagram somewhere that could help? Logged
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Darunia	Re: How do textures work? « Reply #3 on: August 11, 2009, 12:38:18 am »
Fight the Power Reputation: +0/-0 Offline Gender: Posts: 1245	I've always wondered how they worked too. Whenever I applied one that I spent hours making it always rendered in the wrong position and not like I wanted. I'd like to avoid making a new topic just for this so, could anyone answer this for me?: How do you apply textures to a model made in a NURBS modeling software? Logged
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DJvenom super-sage	Re: How do textures work? « Reply #4 on: August 11, 2009, 12:57:22 am »
Colbydude was here. Reputation: +7/-0 Offline Gender: Posts: 2898	I only know how to apply textures in Milkshape in a very primitive (no pun intended) fashion... When I texture, I draw out my flat (bitmap) then select sections of triangles and then regroup the sections and apply the textures thusly. I could write a small tutorial on it I suppose. As for nurbs, I have no idea. I don't even know what that is D: Logged
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Kingknight SiMelon	Re: How do textures work? « Reply #5 on: August 11, 2009, 01:24:48 am »
The Hunter Reputation: +0/-0 Offline Gender: Posts: 495	Could you write a tutorial? I'm switching to Milkshape since Wings 3d is sort of shitty. no offence intended to people who like to use it Logged
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DJvenom super-sage	Re: How do textures work? « Reply #6 on: August 11, 2009, 01:31:20 am »
Colbydude was here. Reputation: +7/-0 Offline Gender: Posts: 2898	Well wings' texture system works almost exactly like Milkshape's if I remember correctly, in a sense you basically have to deconstruct the model by hand. Logged
	I do art I ermmm... DID do art I do art

Kingknight SiMelon	Re: How do textures work? « Reply #7 on: August 11, 2009, 01:41:04 am »
The Hunter Reputation: +0/-0 Offline Gender: Posts: 495	could you please write a tutorial? i didn't even know how to texture on wings so :p Logged
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Downsider	Re: How do textures work? « Reply #8 on: August 11, 2009, 02:20:10 am »
Oh. Reputation: +0/-0 Offline Posts: 579	Wings 3D has automatic UV Unwrapping, it unwraps and colors each polygon, which you can then compare to the now-colored model, and draw up your texture, re-import it, and profit ;O I dunno if that's the preferred method or anything, I !@#$% suck at modeling. Logged
Oh. Reputation: +0/-0 Offline Posts: 579	Hm.

Dantztron 3030 Mammy's Favorite Storyteller!	Re: How do textures work? « Reply #9 on: August 11, 2009, 02:29:00 am »
b e p i s Reputation: +0/-0 Offline Gender: Posts: 3594	Quote from: Darunia on August 11, 2009, 12:38:18 am I've always wondered how they worked too. Whenever I applied one that I spent hours making it always rendered in the wrong position and not like I wanted. I'd like to avoid making a new topic just for this so, could anyone answer this for me?: How do you apply textures to a model made in a NURBS modeling software? I imagine you could probably export it to 3DSMax and then use that to texture it. I believe Rhinoceros has this feature. Logged
b e p i s Reputation: +0/-0 Offline Gender: Posts: 3594	Quote from: CeFurkan on September 10, 2010, 08:30:51 pm well i dont have that system and it is very hard to care about everything when you are single

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