Forum: Vue

Subject: Alpha Map Qusetion

LMcLean opened this issue on Sep 28, 2006 · 17 posts

LMcLean posted Thu, 28 September 2006 at 7:13 PM

I'm having a brain freeze. This is probably something I am overlooking. I want the stripes to be seen only not the Sphere. I have mapped the white line onto the sphere. How do I make the "white" part of the sphere transparent and the dark line to be as is. This is easy using an alpha plane but can I do it with a sphere?

chippwalters posted Thu, 28 September 2006 at 7:47 PM

You need to apply the map to the transparency channel for your object. This is done differently depending on which version of Vue you are using.

LMcLean posted Thu, 28 September 2006 at 9:58 PM

Quote - You need to apply the map to the transparency channel for your object. This is done differently depending on which version of Vue you are using.

chippwalters, I am including the image and the steps I have taken. I am using Vue 5 Infinite. First Image is the Function Editor. Please tell me how to do this. Thanks

LMcLean posted Thu, 28 September 2006 at 9:59 PM

LMcLean posted Thu, 28 September 2006 at 10:01 PM

LMcLean posted Thu, 28 September 2006 at 10:03 PM

chippwalters posted Fri, 29 September 2006 at 12:21 AM

Looks like you got it.

You might check out my tutorial on Mapping a tire:
http://www.altuit.com/webs/altuit2/vuelab/MakingaTire-PartIITextures.htm

and another on Mapping Notes:
http://www.altuit.com/webs/altuit2/vuelab/MappingNotes.htm

LMcLean posted Fri, 29 September 2006 at 1:11 AM

chippwalters, Unfortunately, I don't got it yet. Everything that is white is supposed to be transparent so I don't know what I am doing wrong. Only the black is supposed to be left, like an alpha map. If someone has done this before please chime in here. Thanks

videodv posted Fri, 29 September 2006 at 1:27 AM

Delete the node that you have highlighted (leave the color node conected) and connect the transparancy tab (on the bottom tabs to the right of the color node) to the picture connected to the color node.

LMcLean posted Fri, 29 September 2006 at 11:06 AM

videodv, I followed your steps (see function picture). When I look at the picture it looks great. Totally transparent except the black lines. Just what I wanted. But when I render the image it looks totally solid again. Any ideas what is causing this. I don't suppose you can try this using my image map and post a file for me? Thanks

LMcLean posted Fri, 29 September 2006 at 11:07 AM

Looking Great so far!

LMcLean posted Fri, 29 September 2006 at 11:10 AM

Still not working. This is what it looks like when I render it.

chippwalters posted Fri, 29 September 2006 at 3:58 PM

Here ya go.

And the file is here.

best, Chipp

videodv posted Sun, 01 October 2006 at 2:20 AM

Hi LMcLean

Sorry been away for a bit, did you get this to work ok! or do you still need the file.

Chip cannot upload your file as the link in down.

Videodv.

chippwalters posted Sun, 01 October 2006 at 2:29 AM

Yeah, I know the link is down. Should be fixed soon.

LMcLean posted Mon, 02 October 2006 at 11:46 AM

I actually figured it out but downloaded the file too! Thank you all for the help. chipp thanks for the file. Looks great and videodv for all your help too!