dificulty about creating materials

[rodrigotrovao]

im having some difficulties about materials here.. one of those, is this:
im trying to make a scene like shadow catcher in octane standalone.. How to show image in the background?.. cant connect some materials/maps.. annyoing.
Could anyone help me? Thanks anyway.

[FooZe]

Hi Rodrigo,

Can we please get more info? Maybe some screenshots of your tests that don't work as you expect?

Thanks
Chris.

[JuM]

put environmental image map to environment map slot from max. Then you can see the background image.

[rodrigotrovao]

Jum, thanks a lot! BUt, found out.. when i turn the sun ON it disappears.. octane light is ok, but the sun "removes" the background.

thats a bug or what??

I think i need follow through tutorials ..

[rodrigotrovao]

Let me explain better.. i wanna do this.. (i did in mental ray.. but dont know how to do in octane)..
the background as a picture and this ball rendered and the floor as matte shadow (shadow catcher).
Is this possible!??

[JuM]

Octane sun + environment map working together is not supported. You should use octane light+envrionment map instead of sun+env.map.
Another way, draw a hemishpere and put the panaromic envrionment map on it and add octane sun. So you can get closer effect to sun light + environment image.

[rodrigotrovao]

Thanks again. I was suspecting about this. Jum, theres no shadow catcher like feature in this latest version?

[MaTtY631990]

Yes shadow catcher is supported. You find this option on the diffuse material type.

[rodrigotrovao]

Thanks Mat, but what about the background? How to render the image in the background? No support for that?

[JuM]

I dont understand clearly what you are trying to do. If i didnt get you wrong, make another scene for background image, use same camera and use standart max renderer for speed. Comp them together.