OTOY Forums

Hi,
How can I use an image with alpha channel.
I want to put a text on a surface like a sticker.
I want to see the background behind the text
Is it possible?

Thank you

Just pick your material and use an image for the opacity setting.

But if I use the opacity channel, the object become transparent.
I want to see the surface behind the text.

use the image for the texture ten, in the opacity control, choose "alphaimage" and select the same image. It will extract the alpha channel from your image and apply it to the opacity.

Cheers
/M

Hi,

Thank you very much for your help.

But here is what I get if I use alphaimage in opacity :
But I don't want this, I want this :
I don't want the object to be transparent, only put a text on the surface and that we can see the behind color and surface.

Use two objects, the 'sticker' (alphamapped) slightly bigger than the 'background'.

Or better: mix your two textures with a mix node using the 'sticker' BW texturemap for amount. Apply that to diffuse material channel.

Ok, thank you all for your help.

I have made a not like matej's example and it works well.
Where the alpha map text drives the amount of the mix, the text is in first texture and rgbspectrum in second.

I thing the possibility to mix to materials and not only 2 textures can be very very usefull......

Maybe a future feature?

scratch33 wrote:I thing the possibility to mix to materials and not only 2 textures can be very very usefull......

I agree