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anderseide

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Reply with quote  #1 
From an ongoing project where we move the whole hallway-area of an building outside in a new structure to get appartments with daylight from two sides.



Skjermbilde 2017-05-21 kl. 20.32.03.jpg

bigstick

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Reply with quote  #2 
Too many people, and the viewpoint is distorted or the camera is too high - possibly both.

Look at the angle of the floor on the lower balconies - it's not right.

Just add one or two people in just one balcony. Chose one that looks as if they were doing something you would naturally expect someone to do on a balcony. They could be sitting down having coffee, making a phone call, tidying up, watering some plants.

With people in renders, less is more. By all means add them if you can do it well, but definitely don't overdo it.

This scene is 5 minutes from being amazing. The people and the distortion ruin the illusion. The lighting and plants are fabulous!

The standard of your visualisations is as good as a professional - but there are these little touches which sometimes just miss the mark.
It's not that your work isn't good, quite the reverse, it's just not as good as it very nearly could be [thumb]



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anderseide

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Reply with quote  #3 
Thanks for the tips bigstick. The fov is 50, which might be a little too much, but the problem is that we are standing on a road at a higher level than the lower balconies, I guess that what makes the angles look a little odd.

Your point about the people is noted and I will adjust accordingly.

Another question: Have you ever managed to get a polycarbonate facade right? I tried to do this image as a dusk shot but couldn't get the the material to diffuse the light enough.

What i want to achieve, (sorry for referencing another engine):

309bf9d68ab442bec0e4f5bd1e2aff44.jpg

What i managed to achieve:
Formannsvei 29 Bakside 3 2017-05-21 09413400000.png 


Its probably difficult to see, but I tried dozens of variations with less and less transparency, but couldn't get it to diffuse the light while at the same time showing the timber structure behind. Do you get what I mean?   

bigstick

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Reply with quote  #4 
How have you set up this material?

You need to use the translucency checkbox, use thick geometry (not single planes) and experiment with the transparency setting. You probably need a texture too.

The other thing is backlighting behind those panels. We should be able to get a lot closer to the effect you want.

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JustinSlick

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Reply with quote  #5 
Yeah I did a quick test and I think the key is having a strong enough backlight, plus Blurred transparency in the material settings.

Also, polycarbonate does refract light a little bit.  I looked up the IOR and it's usually listed around 1.58.

With actual detail in the model and a bit of tweaking this might be a decent start?

polycarbonate-test.png 

skp polycarbonate-facade.skp    


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anderseide

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Reply with quote  #6 
Yes, perfect, this looks really promising Justin! I was just sitting here trying a bit out for myself, may I ask how you set up your facade material? This is what Ive got so far.

Now I've set up a big hidden lem(10 high intensity) inside the box. I checked the translucency box on the facade material and now i`m currently testing out variations in transparency as suggested by bigstick.


Kveld 2017-05-23 00154500000.png 

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Reply with quote  #7 
I just gave it some arbitrary thickness, and the material settings are shown below. I also used LEMs for the backlight--didn't check high intensity, but the LEM power was at 30 I think.  The sketchup file is attached in my last post if you need to see it, but it looks like you're on the right track.
polycarbonate-width.jpg 


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Nick00

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Reply with quote  #8 
Be careful with refraction, it will only displace the image behind the wall if the surface is completely flat. If you'd have a curved shape like profilite that would be another story.
Make sure you don't have caustics too and don't use a high intensity LEM as it will produce a grain. If you want that white semi-opaque look in your image you need to add more diffuse, probably even close too 90%.

Good luck!

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arqcova

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Reply with quote  #9 

checking this may help you anderseide

http://www.suplugins.com/materials.php


As you can see, this is quick, easy and realistic. We can get different effects by playing around adding reflection, blurred reflection, and textures.

The image below uses a texture map with a fine grain (Photoshop 256x256, mid grey, >Filter>Texture>Grain) to create a slight bump effect, similar to what you find with sand blasted or acid etched glass. 


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bigstick

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Reply with quote  #10 
Hey, that brings back memories! I wrote it years ago, but haven't read it for years either [smile]

It's pretty comprehensive. I probably ought to simplify it, and get Justin to add some of those neat images with sliders that allow you to see different results.

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