Blurring reflections

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pbacot
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Re: Blurring reflections

Post by pbacot » Wed Jul 17, 2019 4:34 am

Cool, thanks. I'll see what I can do with that!

Fletch
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Re: Blurring reflections

Post by Fletch » Wed Jul 17, 2019 10:17 am

pbacot wrote: Fri Jul 12, 2019 8:01 pm ...and then there are also places where the surface obscures the reflection, which would be nice to know as well.
Try "rough" procedural in reflection channel.

tuna57
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Re: Blurring reflections

Post by tuna57 » Wed Jul 17, 2019 5:11 pm

Fletch , Glad you posted some great advice for pbacot's original question. Not sure I was being of much help :whistle:
I've been doing a bunch of experiments in the Deep Material Editor to try and get more complex effects than "out of the
box" settings. Downloaded the "Deep Material" manual and still struggling with "just where" I should be "plugging" things
in to get desired result.... :!
TwilightPro V2.11

ntxdave
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Re: Blurring reflections

Post by ntxdave » Wed Jul 17, 2019 6:01 pm

Fletch wrote: Wed Jul 17, 2019 10:17 am
pbacot wrote: Fri Jul 12, 2019 8:01 pm ...and then there are also places where the surface obscures the reflection, which would be nice to know as well.
Try "rough" procedural in reflection channel.
Can you point me to that setting? :D

Fletch
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Re: Blurring reflections

Post by Fletch » Wed Jul 17, 2019 8:02 pm

twlRough Texture is one of the procedural texture choices available.

Try similar settings starting with the "Advanced Reflection" template as shown here, only choose "twlRough" in place of "mBrick" shown here for the Reflection channel.
Image

pbacot
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Re: Blurring reflections

Post by pbacot » Wed Jul 17, 2019 8:54 pm

When I can run an example, I'll show what results I have. Thanks again!

ntxdave
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Re: Blurring reflections

Post by ntxdave » Wed Jul 17, 2019 11:26 pm

Did some of my own testing/playing around some of the settings.

Now if I could just figure out how to achieve this without having to have a very large white ground object so that the background would be transparent (or at the minimum just a white background).
Advanced Reflection Testing with twlRough
Advanced Reflection Testing with twlRough
Twilight Render Test.png (3.47 MiB) Viewed 14712 times
Is there some place where I can do more reading/learning about these settings. Do not like guessing without some understanding of what the settings really mean.

JGA
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Re: Blurring reflections

Post by JGA » Thu Jul 18, 2019 12:08 pm

ntxdave wrote: Wed Jul 17, 2019 11:26 pm Now if I could just figure out how to achieve this without having to have a very large white ground object so that the background would be transparent
Nice model!
You can render the same view to produce an alpha mask to use in an image editor.
The general advice is to make it about twice the resolution of the colour image, to give you nice crisp anti-aliasing boundary.
Alpha Mask
Alpha Mask
Alpha.png (20.39 KiB) Viewed 14702 times
Another option is to just create a style in SketchUP, and export it as an image.
Alpha Style screenshot
Alpha Style screenshot
Alpha man.png (7.36 KiB) Viewed 14702 times
Attachments
Alpha_mask.skp
Alpha Mask SKP example
(65.51 KiB) Downloaded 648 times
JGA

pbacot
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Re: Blurring reflections

Post by pbacot » Thu Jul 18, 2019 3:35 pm

If you don't have a surface you won't have shadows on the ground plane, unless TWL has some sort of "shadow catcher" technique that will produce the shadows against the transparent background

ntxdave
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Re: Blurring reflections

Post by ntxdave » Thu Jul 18, 2019 4:31 pm

Maybe I was not clear. In the image below you will see the large white (does not look white in the image) that I would like to eliminate.
Model Capture.png
Model Capture.png (227.74 KiB) Viewed 14686 times
I want to be able to render with a all white or transparent background without having to have the large object I have pointed to. I have tried several things but none have produced the results like my current solution.

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