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Advice.. // Archive: Tech Forum

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Post by rjeff // Nov 13, 2007, 4:02pm

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Ok I am having a time getting the rest of the cylinder to match the top. How would you do it?

Post by TheWickedWitchOfTheWeb // Nov 14, 2007, 12:47am

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Do you mean the texture or something else? Your question is a little vague.

Post by rjeff // Nov 14, 2007, 4:06am

rjeff
Total Posts: 1260
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Sorry about that. See the silver color of the top lable? Well I want the whole capicator to look like that color, but I am haiving a real hard time matcing them up. I guess if I can get the color of the entire caipicator to match then I will have to make a texture close to that and add the text to it.

Post by prodigy // Nov 14, 2007, 4:24am

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Haaaa i think understand what you need.. You are using a planar Uv mapping. and you need to attach a Cylindrical UV Proyection.. Try that..

But remember the texture must be aplied to the side faces to seeit.

HTH

MMM... that's what you need??

Post by splinters // Nov 14, 2007, 5:16am

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...or model the capacitor body separate from the capacitor top so each can have it's own type of UV mapping...bring them close together so they look like one part...:D

Post by TheWickedWitchOfTheWeb // Nov 14, 2007, 5:32am

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OK, makes a bit more sense. Various options - the two simplest being to uv map and texture the whole cylinder or paint the cylinder with the shader you like and paint just the top face with the texture map you have already also using a trans/alpha map to mask out the silver bits of the texture allowing the base shader to show through. Trying to match up a colout in a texture map with a shader is possible but difficult, especially when you take factors like reflectance, etc, into account.


Hope that helps

Post by 3dfrog // Nov 14, 2007, 6:09am

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Open your texture map in photoshop. Use the eyedropper tool to get the rgb values of the grey. Then enter those values in your color picker to match the color in ts.


Or use this:


http://www.tucows.com/preview/194554.html


If I understand what you want correctly

Post by prodigy // Nov 14, 2007, 6:26am

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hahaha another is cut the silver section from your texture and aplyit to the whole cylinder.. :D

Post by opiejuan // Nov 14, 2007, 7:18am

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Here's a slight enhancement of 3DFrog's post. Open the texture map in your paint program and just crop a small portion of the color you want to use from it and save it as an image file ( It can be any size, I have in the past even used a single pixel image map) then use the newly saved image as an image map on the rest of the cylinder.


This will eliminate differences in how the render engine deals with texture maps and regular color values.


For you car modelers out there...also try this when painting your cars. I know in the earlier render engines using the color picker in the shader controls I always ended up with a darker color than what I really wanted...going this way it matches up great!


HTH!


edit: Or just listen to what Prodigy said :)

Post by rjeff // Nov 14, 2007, 8:15am

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Well I have tried the color picker in PS and the colors don't match up at all. I may have to try what Opie said or just make me a texture and draw the text I need on it.
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