Topic: Rendering help: Same face, two materials

[T.Willey]

I have a model I want to render.  I'm pretty new to rendering, but I got a pdf to help me.  My questions is how (or is it possible) to assign two different material to the same face?  I have a concrete panel, with a couple of horizontal reliefs.  It is all one solid, so it's all one face.  I want to attach one material to the bottom portion of it, and another between the two reliefs.  How can this be done?  I will continue to play, and post back what I find out.

Thanks in advance.

[Josh Nieman]

You can assign materials by face, but not more than one to a single face.

You can assign it such that each face of a cube has a different material (6 materials on one solid [wow that sounds like some kind of nerdy modeling porno]) but you can't have more than one material on a single face.

[deegeecees]

I would have to say its not possible to attach 2 materials to it but you could create a new material based on what you want, or create a bitmap and map it to the object.

Let me know whatchoo wanna do, I'll help if I can.

[T.Willey]

Okay so I've found one way to do it.  I had to remove the material from the whole object.  Then I had to change the color of the faces I wanted one color (this didn't work before, I think) with SolidEdit -> Face -> Color.  Then I was able to attach the material per color within the 'RMat' dialog.  This will take awhile, but it will work the way I want it to.

I don't know what I did different this time than last time, but SolidEdit seems to be the key I was looking for.

[Josh Nieman]

That's wasting a good bit of time, though it may help to keep you organized by being able to quickly identify if a face has the wrong material on it.

SOLIDEDIT
Face
mAterial

if you're gonna use solidedit, do it thataway

[T.Willey]

You can assign materials by face, but not more than one to a single face.

You can assign it such that each face of a cube has a different material (6 materials on one solid [wow that sounds like some kind of nerdy modeling porno]) but you can't have more than one material on a single face.

How do you do this?  I see no way to attach per face, only by object.  I'm using '06 Electrical is that matters.

I would have to say its not possible to attach 2 materials to it but you could create a new material based on what you want, or create a bitmap and map it to the object.

Let me know whatchoo wanna do, I'll help if I can.

I think I found one way to do it, but if Josh's way can be done in '06 then I will have a faster way.  Thanks for the offer to help, I will certainly take you up on it if I can't get this to work the way I think it should.

That's wasting a good bit of time, though it may help to keep you organized by being able to quickly identify if a face has the wrong material on it.

SOLIDEDIT
Face
mAterial

if you're gonna use solidedit, do it thataway

In '06 I don't see the oftion for material, and pressing 'A' says 'Invalid option keyword.'.

[Guest]

I'm using '06 Electrical is that matters.

So I guess I can skip the suggestion of creating a wall style.

[Josh Nieman]

yikes.

Sorry, I didn't know that option wasn't available before 2007.  Sometimes I get caught up in using 2007/8 and forget about 2006 and prior too.

I'm trying to find where it allowed me to apply material by face...

I swear I thought you could right click on the icon for the material on the materials tool palette, and there would be a "Apply Material by Face" but i think I may be daydreaming, because it's not on my Autocad......

[T.Willey]

I'm using '06 Electrical is that matters.

So I guess I can skip the suggestion of creating a wall style.

Yea.  We don't usually do this type of stuff, but we are thinking about repainting so they asked if I could draw something up.

yikes.

Sorry, I didn't know that option wasn't available before 2007.  Sometimes I get caught up in using 2007/8 and forget about 2006 and prior too.

I'm trying to find where it allowed me to apply material by face...

I swear I thought you could right click on the icon for the material on the materials tool palette, and there would be a "Apply Material by Face" but i think I may be daydreaming, because it's not on my Autocad......

I don't use tool palettes, but I will see if that will work.  Maybe it gives different options.

[SDETERS]

I do not know much about Autocad 3D but can you split the face or divide the face

Then you have two separate surfaces to apply the material to

[T.Willey]

I do not know much about Autocad 3D but can you split the face or divide the face

Then you have two separate surfaces to apply the material to

This was my first idea, but I reasoned myself out of it.  I think I thought it would have been too much work to be of any good.  I had one solid (wall), then doing it this way I would of had minium 9 solids (one wall).

[Josh Nieman]

I do not know much about Autocad 3D but can you split the face or divide the face

Then you have two separate surfaces to apply the material to

This was my first idea, but I reasoned myself out of it.  I think I thought it would have been too much work to be of any good.  I had one solid (wall), then doing it this way I would of had minium 9 solids (one wall).

I used to think unioning things together made the drawings easier to handle, but soon realized that it sucks to have to go slicing and reslicing and deslicing and all that just to modify it... now I love having every single piece as a seperate entity that's movable and modifiable.  Having minimal solids isn't always the best, I find.  But that may be me.