Textures in renderworks

[John Windswept Design]

I want to make a standing seam metal roof look like one with the seems casting shadows. As well I would love if board and batt siding had the same look. Is there a way of doing this without modeling each seam or batt?

john t

[J Lucas]

I did that once on a project by modeling one panel of standing seam roofing then duplicating it to make a sheet of roofing large enough to cover the largest roofing plane on the project. Then I made a symbol of this. I then created working planes on each roof surface, placed and adjusted the symbol sheet of roofing as an object, and then trimmed each sheet of roofing in place to match each roofing plane. A bit time consuming but not unreasonable for the effect. I suppose it could be done with board and batt also. Only way I can think of to get real shade and shadows.

[billtheia]

Bump map on a texture? Should work pretty well unless you need really close views - but then you could just model enough for the view in question.

[John Windswept Design]

Can you adjust the bump map to create a standing seam type texture? I just played around with it and I could not but I must admit that I'm not a pro at this aspect of VWR.

[VincentCuclair]

You can make any type of bump you want, either choose the same as the texture itself, use one of the predefined or create an image in grey scale.

[John Windswept Design]

Is there a description on how to create an image for bump map anywhere? I'm trying to make a standing seam roof. Do I create vw image?

[Tobias]

VW has a handy new feature (or at least new to me).

Assuming you are using an image for the texture,

Go to the edit texture dialogue

Select 'Image' from the 'Bump' pull down->

Click 'Edit' next to the Bump pull down

Click the 'Reuse an image...' radio button

Select 'This Textures color' click ok

Hit the 'Invert' image button

you can also set the bump strength

done.

Love to see the texture when it is looking good.

[rDesign]

If you did want to go the modeling route - this company has standing seam metal roofing objects in Vw format: SteelSelect CAD library Vectorworks format (This handy link has been posted elsewhere in the forum).

You could render a face-on image with shadows of one of these modeled roofing panels and use that as your texture & bump map.

Regards,

Tim

[billtheia]

Here are jpg, vwx, and png files showing how you might make standing seam roofing using a bump map.

[Ozzie]

Needed is a section in the forum for the 'handy links'

[Pat Stanford]

What about the Resource Share - Textures forum? A short writeup on the technique there would be great.

[John Windswept Design]

Hi Bill,

Your Jpg looks GREAT! Just what I was looking for.

I opened up your vwx file and I have the roof object with the texture. But for the life of me I can't make it look your jpg. I put in some lighting and I final rendered it. But it looks flat. Any ideas?

[billtheia]

I had three lights in the model already. Your problem might be related to the fact that my file was created in VW2010 and you are opening it in VW2011. Do you have a copy of VW2010? If so, try opening it there. If not, what rendering mode are you using. I would think that you should be able to simply open my file in VW2011 and render it using final quality renderworks and get results very similar to mine. I'm not sure how well the transition is working between the two versions of VW, though. Given the change to C4D engine, I suspect that there is a good chance that the translation is less than perfect.

[billtheia]

I used the Metal, Aluminum shader. You might take a look at the texture and see if that came through.

I also had three lights:

1. A key light at cameral left, on 100% with shadows turned on

2. A fill light at camera right, on 25% with shadows turned off

3. A rim light behind the roof to the left, on 25% with shadows turned off

Did the lights come through?

[John Windswept Design]

The lights did show up but the only shader is mirror @ 60%. I can't find metal or aluminum

[billtheia]

I was afraid that might be the case. The shaders in C4D were bound to be different than those in the previous version of RW.

I've attached a screen shot of the settings for the aluminum shader. Perhaps you can use it to make your own reflectivity shader.

[John Windswept Design]

Thanks Bill that helped. I have it looking quite good. C4D has a some differences to be sure.

I would love to know how you made the image bump. I'm sure there are a few of us out here :-)

john t

[billtheia]

Image bump map:

1. Open Photoshop

2. Create new, blank image, 48px x 48 px.

3. Draw 1px wide black stripe at left edge

4. Draw 1px wide black stripe at 24px mark

5. Save as .png file

[billtheia]

I messed around with VW2011.

Here are updated jpg & vwx files.

You're right, things are a bit different. Fill & rim lights needed to be bumped up to 50% (from 25%). Shaders are COMPLETELY different.

[John Windswept Design]

Love the light shining off the roof. Into the depths of photo shop I go!

Thanks John t

[billtheia]

Thanks.

Good luck.