Maxwell Render | Official public forum

I've got a 3D model in studio which I've covered with a texture of white binary numbers on black. And the background is black. I've rendered this way as I want to somehow get rid of the black.

Is there a way of rendering out with the black as transparent? Or another way?

Selecting colour range and refine edge in Photoshop isn't working well.

Maybe you could use white numbers on a green (or any non black color) background to help make your selection in PS easier.

If you just slap that same texture into the material's opacity channel it should clip out the black part (the background) and leave the white part (the numbers).

-Brodie

brodie_geers wrote:If you just slap that same texture into the material's opacity channel it should clip out the black part (the background) and leave the white part (the numbers).

-Brodie

+ render an alpha pass

Fernando Tella wrote:

brodie_geers wrote:If you just slap that same texture into the material's opacity channel it should clip out the black part (the background) and leave the white part (the numbers).

-Brodie

+ render an alpha pass

If you follow those instructions an alpha pass would probably be redundant as there should be nothing to clip out in post as it's already done within the material. Same idea as using a clip map for tree leaves.

-Brodie

Layer weights/masks/creating 'clip maps':

http://support.nextlimit.com/display/knfaq/Clipmaps
http://support.nextlimit.com/display/ma ... ing+Layers

Mihai wrote:Layer weights/masks/creating 'clip maps':

http://support.nextlimit.com/display/knfaq/Clipmaps
http://support.nextlimit.com/display/ma ... ing+Layers

I can't create an opacity mask/clipping mask because the actual black part of the aeroplane cannot be transparent - I want the binary to only be seen on the side that I'm looking at and not show through from the far side.

Like this



Not this

I can't test it right now, but would material ID render channel work?

Best,
Jason.

i need to do this all the time.

Just apply the black and white texture as a texture, not an alpha. Then light your object using the skydome. It's bit of a hack, but i do this all the time and it works fine.

So you want transparency embedded?

Maybe with two objects:
-one with numbers + alpha
-one black + matte (this one should be a bit inside the first)

No I don't think that will work.

Half Life wrote:I can't test it right now, but would material ID render channel work?

Best,
Jason.

I don't really get what you're trying to do. What is the final render supposed to look like?

All I'm trying to do is crop out the black and leave the white binary to then overlay onto another image in Photoshop. So wondering if I can do that using Maxwell rather than selecting the black in Photoshop which is fiddly and not that crisp.

Mihai wrote:I don't really get what you're trying to do. What is the final render supposed to look like?

w i l l wrote:I can't create an opacity mask/clipping mask because the actual black part of the aeroplane cannot be transparent - I want the binary to only be seen on the side that I'm looking at and not show through from the far side.

Like this



Not this

It'd definitely depend on what shape you're applying it to, but in this case could you not just cut the cylinder model in half and apply the clipping mask to just that front surface? Maybe that technique could be applied to the model you're working with.

Nah but I did think of that. It's an F16 jet plane at different angles so I can't.