topic Re: Help With Alpha Chanel in Maya Shading, Lighting and Rendering Forum

Help With Alpha Chanel

victor7588 — Fri, 10 Nov 2017 20:56:04 GMT

Hello everyone my name is Victor

I have triuble with alpha chanel, in maya (arnold) I have some Planes , i applied a texture with alpha chanel but all i get is a black square with texture , i have unmarked the opaque option, but it just dont help i need it transparent because it is supouse to be leaves, please can someone help me to udnerstand how to properly render with alpha chanel.

Thanks by Your help.

Greetings

Re: Help With Alpha Chanel

mspeer — Sat, 11 Nov 2017 09:31:49 GMT

Hi!

1. Don't confuse Alpha (TIF) with Transparency (PNG)

2. Make sure to use an Arnold Material

3. Use File node and not PSDFile node.

For further help please upload the scene-file (+ the texture).

Re: Help With Alpha Chanel

victor7588 — Sat, 11 Nov 2017 16:36:26 GMT

Hello, yeah , seems i was ignoring to connect the alpha chanel in transparency now it Works ver ywell in render , but in the viewport is a back square, is not so important for now , but how could i have it working both , viewport and render ?

i attach a screenshot, sorry i cant ipload file as it belongs to my work Project.

PS: is a very low and quick IPR

Re: Help With Alpha Chanel

mspeer — Sat, 11 Nov 2017 20:28:18 GMT

Hi!

Read this:

https://forums.autodesk.com/t5/maya-shading-lighting-and/transparency-renders-black-in-arnold/td-p/6774804

Re: Help With Alpha Chanel

victor7588 — Sat, 11 Nov 2017 20:45:56 GMT

Hello, Yrah i read that post, before it helped me for render but now i mean for viewport, transparency Works with blinn, Albert, phong but not with ai standard Surface, Life for example a previs with playbast it looks black square, but in render is fine.

Re: Help With Alpha Chanel

mspeer — Sun, 12 Nov 2017 08:09:36 GMT

Hi!

Correct, and therefore this is the solution (which also works for other renderers and shaders where a feature you need is not supported in Viewport 2.0):

"set one material for Maya and an other for Arnold"