Beginner's help please

[sschnei1]

Hi,
I am new to Indigo and am using it with SketchUp. I've read all the tutorials and a lot of posts, but something's just not making sense to me. In the model I'm trying to render I have a bunch of png images of plants and the background of these images just will not go away when I render them. I have tried recreating my pngs multiple times with alpha layers and and with masks and I'm not having any luck getting rid of the background on my images when it comes to rendering. I've tried recreating the components and exploding them (they are all face me components). Is there anyone who could maybe give me a step by step instruction on how they've gotten it to work?

[dakiru]

Hello, sschnei1 and welcome! Please, tell us what modelling software do you use, exporter version that you use with it and Indigo version. It will be a lot easier to help

[Soup]

I think you missed the first sentence there Dakiru

What you are asking about is sometimes refereed to as 'alpha cards'. I forget, but I dont think alpha layers are used in Indigo (strictly speaking, alpha cards are super unrealistic so Indigo doesn't really support it ). What you'll have to do is create a black and white version of the alpha and save as a separate version. Then set the 'clip map' to the b&w map.
that should do it

[dakiru]

I think you missed the first sentence there Dakiru

OMG that's true

[sschnei1]

Thanks for the help! I had actually gotten it to work as a blend material first, but to get that to work I needed unnecessary materials that really bogged down my file. What the problem really was was that my alpha channel had a black background and white foreground so my plants would disappear instead of the background when I would change the "c" value. Inverting the image worked perfectly.
Thanks again!

[CTZn]

Hint on:

Inverting the image worked perfectly.

http://www.indigorenderer.com/forum/vie ... 86&start=0

stick with fused's way.