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Valued Contributor
Anthonius
Posts: 93
Registered: ‎04-21-2011
Message 1 of 5 (711 Views)

Rendering - Roof patterns/tiles rotating for correct slope

711 Views, 4 Replies
01-24-2013 12:08 PM

Hello fellow renderers...

 

 

I'm trying to learn how to render roofs correctly so I made this simple drawing (attached.)

 

When placing the roof material on the... roof, it looks correct on the west slope...

Anthony's House SW.jpg

 

SW roof tile upside correct.jpg

 

but upside down on the east slope

Anthony's House SE.jpg

 

SE roof tile upside down.jpg

 

I know how to rotate the image and bump for the material, but do I have to do that and create numerous roof materials in my drawing - one for each slope?  Or is there a different way to map the material to the 3D object?

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AutoCAD MEP 2014 64 bit
Revit 2014
Windows 7

Have a good time, all the time.
*Expert Elite*
Alfred.NESWADBA
Posts: 8,512
Registered: ‎06-29-2007
Message 2 of 5 (685 Views)

Re: Rendering - Roof patterns/tiles rotating for correct slope

01-26-2013 08:46 AM in reply to: Anthonius

Hi,

 

Either you create a new material with another mapping-direction for the image or you assign another mapping to the other roof-side (would be my preferred way) or you first create one roof, assign mapping and material and the mirror the roof.

I don't know any automatism that autmatically rotates a texture when a geometry has another slope-direction.

 

- alfred -

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Alfred NESWADBA
Ingenieur Studio HOLLAUS ... www.hollaus.at
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Valued Contributor
Anthonius
Posts: 93
Registered: ‎04-21-2011
Message 3 of 5 (668 Views)

Re: Rendering - Roof patterns/tiles rotating for correct slope

01-28-2013 08:31 AM in reply to: Alfred.NESWADBA

Well that's too bad. 

 

In fact, that roof is mirrored and it didn't matter.  Looks like I'll have to create a roof pattern for each different slope of the roof. 

 

Thanks for the info.

--------------
AutoCAD MEP 2014 64 bit
Revit 2014
Windows 7

Have a good time, all the time.
*Expert Elite*
Alfred.NESWADBA
Posts: 8,512
Registered: ‎06-29-2007
Message 4 of 5 (663 Views)

Re: Rendering - Roof patterns/tiles rotating for correct slope

01-28-2013 08:45 AM in reply to: Anthonius

Hi,

 

>> In fact, that roof is mirrored and it didn't matter.

Have you assigned material + mapping before you mirrored (a) the object or after mirroring (b)?

(b) can't work in the way you like, (a) should work, but please try it first as in the last releases the usage of mapping changed and changed and changed ... so I'm really not sure.

 

- alfred -

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Alfred NESWADBA
Ingenieur Studio HOLLAUS ... www.hollaus.at
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Member
Posts: 3
Registered: ‎12-14-2012
Message 5 of 5 (299 Views)

Re: Rendering - Roof patterns/tiles rotating for correct slope

11-12-2013 09:52 AM in reply to: Anthonius

I am not surprised you didn't get a full answer. Rendering in AutoCAD is for the pros. Leave it to them to hide their tricks. :smileywink:



Seriously, if you didn't know how to do it before the changes you won't knowhow to do it now.



Do you really want to know if it can be done or how to do it.



It can be done.



The trick is to start out with a seed part that it already works on.



To accomplish this open a new file and create a 3D solid, 10 x 5 x 1.



Add a wood material to your available materials.

Drag and drop the material on the solid.

Remove the material.

Copy and paste the 3D solid multiple times into another new drawing.

Rotate them in different directions

Add a material to the available materials.

Attach the material by layer to the layer the 3D solid is on.

View in either realistic or render it.

There you go :smileytongue:

In a nutshell, the trick is to map material to an object, then remove the material, then use it as a seed part (as the mapping is retained when the material is removed), and assign material by layer.

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