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clipmap gradient question

Posted: Thu Feb 26, 2009 6:21 am
by jvanmetre
I've got a clear product label that has color in it along with a
white gradient...white gradient gives way to "clear" label...is there
a clipmap technique that can account for the gradient?

Suggestions much appreciated.

jvm

Posted: Thu Feb 26, 2009 12:09 pm
by Fernando Tella
I don't think I understand exactly what you say; are you asking for gradient clipmap?

Then you have to use your clipmap as a weightmap for the whole layer instead of using transmittance slot.

Some images about your problem would help to help.

Posted: Thu Feb 26, 2009 1:44 pm
by jvanmetre
Fernando-

Unfortunately I can't share the graphic...maybe you've seen consumer
packaging ie. clear bottle and then clear label...clear label has
graphic with color. In my case, in addition to a label with color it also has
a white gradient...my current clipmap technique masks all the white.

Looking for a way to address the gradient issue -- if that make more sense?

jvm

Posted: Thu Feb 26, 2009 3:10 pm
by Fernando Tella
I made a transparent decal example for you; is this what you want?

http://www.ftella.com/links/Red%20decal.zip

One layer is the red thing and the other is a transparent plastic (or something like that :P )
The mix is achieved using the texture supplied to weightmap one layer and the same one but inverted for the other one.

Posted: Thu Feb 26, 2009 6:01 pm
by jvanmetre
Fernando-

Thanks so much...i'm looking at your mxm...

jvm

Posted: Thu Feb 26, 2009 11:30 pm
by jvanmetre
This may illustrate what I'm talking about. I'm trying to show a white gradient on a label that is transparent "clear". When I use a clipping technique one in ref. other in trans. + a weightmap -- using that technique the white area is clipped. In this case, color wise, I'd be left with the blue and the hand color.

jvm


Image