Alpha Channels,

Unity Engine
1

I am on the verge of pulling my hair out.

I would like to do alpha channels but it seems that unity does not do this fundamental function by default like other graphics engines.

I have searched the forums and tried many things and I still cannot get alphas to show transparent ingame.

I read something about a “Actions Utility” but cannot find it on the unity site.

It seems I need it to install the “AlphaUtility.atn”.

If there is anyone that can help by giving me complete definite information that will help make this possible that would be fantastic.

2

Unity can ‘do alpha channels’, of course it can.
Make sure you are using a material with a transparent shader (eg. Transparent → Diffuse)

3

I am sorry but that seems very general and I have search the menus in unity and am still lost I have review the material training video and t only covers the material aspect but does not say anything about shaders.

4

I don’t believe you have read any of the (extensive) documentation

Image
Top right

5

I have in fact read the material on shaders and followed them and the material that created has the shader set to transparent/defuse and the chainlink fence is still not transparent like it should be. I have just reviewed the info at Unity - Manual: Transparent Diffuse. Still not transparent like it should be.

Just a note: I would never tell you that I did not believe you if I were not there to see what you have and have not done. There is a chance that if I did that I might be wrong. (No malice intended)

6

Is your bitmap saved in an appropriate, alpha-friendly format (png, tga, psd)
You can tell this by this button being there when you select it in the project window

7

I resaved my alpha TGA and it is now working. The save must not have gone right. Simple software glich. Note to self. Thank you for your assistance you have been very helpful.

8

I know at some point in the past, photoshop did something silly when it came to saving TGAs with alpha, I don’t know if this was ever fixed - I usually just save as PSD (unity can read them fine).