[Jonkey]

Hi
I am adding a carbon fibre material to an object but the maps appear in sections and applied to each individual section of suface so that the object looks patchwork. how do you get around this?

[Cadhorn]

What program are you rendering out of?

[Jonkey]

Rhino 4
I've included this image to show the result so far.

thanks

http://farm4.static.flickr.com/3266/277 ... 4629_m.jpg

[lebbeus]

your image is too small to see the issue that you're describing, can you post a bigger one?

[Cadhorn]

lebbeus, this one's a bit bigger:


Jonkey: is the carbon fiber part all one piece in Rhino? I don't know if that'll help, but it might. I'd definitely move this question to the Rhino forum, this question has come up there many times. Texture mapping in Rhino is ... not the greatest.

[Jonkey]

the part is one piece in rhino. I'm not that familier with working straight out of Rhino so once i had my scene in rhino i wrote the mxs file and set up all the render stuff in Maxwell. But the part was originally modelled in Pro E.
(some time later)
I talked to a friend and he suggested changing the projector to spherical. this has helped and i am trying a couple of test at present. this has definately helped
Does anyone have any comment on this? Is this the best solution or is there another way.
thanks all

[JDHill]

Hi Jonkey,

Take a look at the Rhino help file under Object Properties > Texture Mapping. You have pretty much the same mapping tools here that you do in Studio - box/plane/cylinder/etc. Once you get the part from Pro/E into Rhino, you can:

- select the object
- go to the Object Properties window
- in the pull-down, select Texture Mapping
- in the texture mapping window, switch from Default to Custom
- in the Projection pull-down, select the desired mapping type

You can also (in the texture mapping window) check the box that says 'Show Advanced UI' - this will allow you to create multiple mappings for each object. You can also show the selected mapping in the viewport using a visual widget (click Show Mapping) - you can move/rotate/scale this widget using normal Rhino move/rotate/scale commands. In the list at the top of the window, you will notice that your first mapping has been added as 'channel 1' - if you set Maxwell textures to also use Channel 1, then they will use this mapping. In this way, you can set multiple mappings for each object and determine which ones your various Maxwell textures will correspond to.

Cheers,

JD

[KurtS]

so what happens if you modify the projector in Maxwell to cubic, and apply smoothing?

[Jonkey]

so what happens if you modify the projector in Maxwell to cubic, and apply smoothing?

This turned out to be the best result so far, thanks for that. i tried the cylindrical and spherical projectors but the cubic looks better. now that i know a bit more about the projectors this will make things easier next time.

[Becco_UK]

I think a nice UV map would work better, with the carbon painted onto it - takes a while longer but accuarate results are more likely.