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jacksoncurtisb

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Reply with quote  #1 

I need to know material settings, thicknesses and textures.
 full_Bicolor_40mm_LBE.jpg  WSZ Detail Fassade Stützen_Bienert.jpg 


JustinSlick

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Reply with quote  #2 
What have you tried so far?

It's not likely anyone is going to have exact numbers for you for something like this, so a little trial and error is going to be necessary.

Try something with blurred translucency and a relatively high transparency value --

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drawovis

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Reply with quote  #3 
Hey Jack,
Perhaps people are more willing to reply if you ask it in a less demanding way?
But yes, I experimented with this kind of material in the past with different results.
here is a start in the attachment. And as Justin said you have to experiment with transparency en blur.
But it will not a simple thing to achieve.

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jpeg rodeca-bl-gr.jpg (143.43 KB, 21 views)

bigstick

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Reply with quote  #4 
So - you mean all but do it for you? [wink]

You wouldn't learn much from that would you?

This is quite specialised and will take a bit of work and effort.

You need a texture, you need to add a tiny bit of bump (start on 1) and you need to check the translucency box. Have a look at the Glass03 or Glass05 materials in >Materials>Transparent in the Browser. You need to combine these settings with the Glass translucent 02 material for translucency, and get a texture which has the lines in it to represent the internal ribs.

Start by modelling the thicknesses of the actual materials.

With regard to the texture, try to find one using Google search. You just need to find a translucent multiwall polycarbonate texture. I made my own which I thought was in the Browser - apparently not. I'll have to get it added.

It will take a couple of days, but in the meantime you could have a go at making your own. If you have a look here you'll see a mid grey background with a number of stripes of subtle gradations. Ignore the texture of the cut edge, you won't see that.

You can create a suitable texture image in Photoshop or Gimp or Inkscape fairly quickly. 

When you are happy with the overall image, group the layers, copy the group and merge them. Then you need to use a filter to add some noise to the merged layer. Play around with the layer transparency so it looks subtle. 

The texture Drawovis added is similar to what you want, but that won't work because the colours aren't right and more importantly, the stripes are too simple.

Don't forget to add additional stripes to represent the joint.

Alternatively model the polycarbonate as individual panels with a tiny gap between them.

Getting the material settings right is only a small part of what you need to do to recreate the effect you are looking for. You need to duplicate the layering by modelling the various structural elements including the bracing.

Finally you need to add the lighting. You will also have to experiment here. You could try a horizontal line of spotlights behind the top edge of the polycarbonate shining down vertically, that should work fairly well, but it looks like you have a vertical line of spotlights along the left hand edge of each bay in your image.

This is a fun exercise actually, and if you can get close to it, you'll learn a lot. At each stage you need to analyse what you are seeing, and work out how to duplicate that.

If you post some in progress renders, we can help you to get closer.







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