CGTalk - Making a hole via transparent texture?

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Aaron Moore

01-06-2003, 12:04 PM

Ok, I want to cut a hole in my geometry but because I would like to keep it as a lathed object, I want to cut my hole with a texture map.

Now it works until I add specularity, reflection etc because even though the opacity around the hole is at 100 (pure black -> white) The reflection + glossy ness give it a glare...

Is there an easy way to do this or what? HELP!

Iain McFadzen

01-06-2003, 12:29 PM

You'll have to include the hole in every map for the spec and relcet channels, and if you are controlling either of those params with a spinner instead of a map you'll need to put the Opac map into that channel as a mask.

Aaron Moore

01-07-2003, 06:07 AM

Ya I was trying that... finally got it to work. The problem was that the specular level was 191 and i didn't know what pixel value that refered to. After some testing i realized that by adjusting the level setting on the output it could appropriately work with the spinner values...

It still seems like a pain though... wish there was an easier way to do this.

BTW this was for that doulbe spoked wheel I was modeling... the final shots are up :

http://www.cgtalk.com/showthread.php?s=&threadid=35326

C&C please

Thanks.

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