curtain material

[timmatron]

Has anybody made a nice curtain material like this?

http://www.spot3d.com/vray/help/150R...n_morning_.png

I haven't quite gotten the hang of the 2 side material yet.

[Candelero]

Yes, sure. I made that one.

(*) Use a VRay2Sided Material
(*) Leave the back material empty, so V-Ray uses the front material for both sides.
(*) Use a fallof map for the diffuse slot, adjusting your colours for the curtain. U can use a map as well if there is some kind of texture.
(*) Play either with the Opacity (prolly an output map in it), or the refraction,
to get the desired transparency level.
Remember if u use the refraction value, better set the IOR to 1.0, to fasten the raytracing.

(*) There is also a reflection/highlight added to the material, with Reflection tracing turned off, so u get only highlights.
(*) Remember that VRay2Sided Material prefers non-shelled geometry, otherwise u may hit the render-time quite much .
In this case the curtain is a SimCloth simulated plane.


That's it !

Best regards,
nikki Candelero

[stephan_MA]

any chance to share this mat?

thx

[Candelero]

Give me a min, to make the shots.




Adjust the Translucency value of the VRay2Sided material, to get the desired
blend.

Best regards,
nikki Candelero

[timmatron]

Great! Thank you. Mine don't look as good as yours when I render it, but it I'm sure it's something in the scene setup. I guess my problem is that the curtains seem to underexpose the sky, and where there are no curtains over the window, they sky is pure white. Doesn't quite look right.

[jophus14]

Thanks you SO much for explaining your setup for the curtains. I just rendered out a quick test using your settings and it looks awesome. This will really help out my image if there needs to be curtains present.

[tct70]

@ Nikki

I have tried this and it works really well. However, the translucency of the curtain does not appear to be included in an alpha map. Therefore if I comp a background into a scene I can see the window frame thru the curtain but not the background.

Any ideas....?

Thanks

[vlado]

You will have to make the base material transparent as well.

Best regards,
Vlado

[voltron7]

Vlado, is this "base" material the front material or the back material?

[vlado]

In the case where you are using one material, it should be that material; if you have different front/back materials, then they both should have some transparency, if you want the final result to be transparent as well.

Best regards,
Vlado

[tct70]

You will have to make the base material transparent as well.

Best regards,
Vlado

Thanks very much.......!

[Candelero]

Vlado, is this "base" material the front material or the back material?

As Vlado mentioned...
I would only add that it depends on how your geometry is rotated - frontface or backface to the camera.

Usually on non-shelled geometry (i.e. Plane) rotating in the viewport, you would normally see only the one side of the geometry - so the FRONT material will fall on those polygons with their normals, and the BACK material would go for the back-side of the polys, (which you actually don't see in the viewport), except if you haven't turned on/off the backface cull.


Best regards,
nikki candelero

[tct70]

You will have to make the base material transparent as well.

Best regards,
Vlado

In the example there is a refraction value of 30 - is this not transparency then?

My curtains are created from extruded splines so as to have no thickness - is this correct?

Thanks

[bhchllc]

I'll throw my two cents in here... I actually liked the results better in this example not using the vray 2sided material which I think works better when brightly backlit. This is an EXTREMELY simple material setup. We "model" the curtains with a cloth sim rig we have set up.





EDIT: Media Temple has been spotty all day today, if the images don't load, it is their fault

[Rt3]

I too have gone with the standard max material with a nice falloff opacity in some cases.... it couldn't hurt to try it in your scene.