Author Topic: Reflection blurrines?  (Read 5001 times)

ryste3d

    Reputation: 15
Reflection blurrines?
« on: December 05, 2012, 10:42:34 am »
December 05, 2012, 10:42:34 am
Work in progress... (one hour into the project) is there someway I can control the reflection blurriness?

Render time 9 sec. pr. frame (great)

I love the reflections


Re: Reflection blurrines?
« Reply #1 on: December 05, 2012, 12:25:09 pm »
December 05, 2012, 12:25:09 pm
is there someway I can control the reflection blurriness?

Not at the moment. Remko would obviously very much like to implement blur, but please don't interpret this as a guarantee that it will become a reality in a future update. We don't yet know what kind of technical challenges this would represent.
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ron_ADST

    Reputation: 5
Re: Reflection blurrines?
« Reply #2 on: December 05, 2012, 01:11:46 pm »
December 05, 2012, 01:11:46 pm
the scale of the reflection is controled in the material so there should also be the bluriness?

Re: Reflection blurrines?
« Reply #3 on: December 05, 2012, 01:15:18 pm »
December 05, 2012, 01:15:18 pm
the scale of the reflection is controled in the material so there should also be the bluriness?

Hi ron_ADST, I'm not sure what you mean?
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stucki

    Reputation: 32
Re: Reflection blurrines?
« Reply #4 on: December 05, 2012, 02:10:24 pm »
December 05, 2012, 02:10:24 pm
with the bump map and the bump slider you can contolr the reflection and make it seem like blurring ...
depends on your bump map ..

Re: Reflection blurrines?
« Reply #5 on: December 05, 2012, 02:19:30 pm »
December 05, 2012, 02:19:30 pm
What you see in Lumion is not proper blurring (as in V-Ray for example), it's more like a distortion of the reflections.

Speaking of using 'bumpmaps' on your floors, it's very important that you know the difference between bumpmaps and normalmaps.

The top half of this texture is a bumpmap and the bottom half is a normalmap:


TIP: Lumion can only use normalmaps. Don't ever use bumpmaps :)

Remko noticed that if you add a bumpmap instead of a proper normalmap (the purple type) to a reflective floor for example, planar reflections will be offset.

For that reason, it is misleading that the tooltip for the Normalmap texture slot in the materials in Lumion says Change Bump texture (this is already on the bugtracker list).
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Michael

    Reputation: 10
Re: Reflection blurrines?
« Reply #6 on: December 05, 2012, 07:42:22 pm »
December 05, 2012, 07:42:22 pm

TIP: Lumion can only use normalmaps. Don't ever use bumpmaps :)

Wow, first time I am reading this. Is that only true in version 3? Seems bumpmaps worked just fine for me in 2.5 and below.
Edit: Might be one of the few who did not know that. The forum, our manual, features normalmaps abundantly.

Re: Reflection blurrines?
« Reply #7 on: December 05, 2012, 09:36:41 pm »
December 05, 2012, 09:36:41 pm
Hi Michael, no version of Lumion can detect whether you are using a bumpmap or a normalmap, so it is up to you to pick the right type.

Only a proper normalmap will give you correct lighting.

Also, when you use the new Reflection effect in Lumion 3.0 you will quickly notice if you aren't using a normalmap for your floors for example, as the reflected models will be offset.
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jorgensen

    Reputation: 15
Re: Reflection blurrines?
« Reply #8 on: December 05, 2012, 10:20:49 pm »
December 05, 2012, 10:20:49 pm
I don't know how to create a normal map - bumbmaps seem more simple to create / understand :-/

Re: Reflection blurrines?
« Reply #9 on: December 05, 2012, 10:31:43 pm »
December 05, 2012, 10:31:43 pm
Work in progress...
I love the reflections

Cant wait to see the final animation, this is definitely amazing. Reflection give life the scene
regards

Michael Betke

    Reputation: 35
Re: Reflection blurrines?
« Reply #10 on: December 05, 2012, 10:48:27 pm »
December 05, 2012, 10:48:27 pm
Jorgensen:

You can use Crazybump or ndo to make a normalmap out of your bumpmap or even from a photo source. I use Crazybump. Its great.
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giosucci

    Reputation: 3
Re: Reflection blurrines?
« Reply #11 on: December 06, 2012, 01:16:49 am »
December 06, 2012, 01:16:49 am
Not at the moment. Remko would obviously very much like to implement blur, but please don't interpret this as a guarantee that it will become a reality in a future update. We don't yet know what kind of technical challenges this would represent.

Well, real blurry reflections would be way too time consuming for animations.
What about starting with a simple blur of the reflection map? I mean, render the reflection, blur it, and apply it to the final image. It would not be phisically accurate, but it would prevent those sharp reflections (when not wanted, of course).

Thank you

regards

gio

Michael Betke

    Reputation: 35
Re: Reflection blurrines?
« Reply #12 on: December 06, 2012, 10:22:07 am »
December 06, 2012, 10:22:07 am
You can change the blurryness with the "glossyness" slider in material editor. also the alphachannel of your diffuse texture determines the reflection/glossy value of your texture. this helps in a lot fof situations.
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Re: Reflection blurrines?
« Reply #13 on: December 06, 2012, 12:37:53 pm »
December 06, 2012, 12:37:53 pm
You can change the blurryness with the "glossyness" slider in material editor. also the alphachannel of your diffuse texture determines the reflection/glossy value of your texture. this helps in a lot fof situations.

You can change the blurriness of specular reflections (from light sources such as the sun and spot lights) but not the blurriness of the actual reflection itself. All you can do at the moment is to use a normalmap to distort the reflections a bit.
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Michael

    Reputation: 10
Re: Reflection blurrines?
« Reply #14 on: December 06, 2012, 06:09:21 pm »
December 06, 2012, 06:09:21 pm
Hi Michael, no version of Lumion can detect whether you are using a bumpmap or a normalmap, so it is up to you to pick the right type.

Only a proper normalmap will give you correct lighting.

Also, when you use the new Reflection effect in Lumion 3.0 you will quickly notice if you aren't using a normalmap for your floors for example, as the reflected models will be offset.

Thanks much. Started using xNormal to create those maps and indeed they make a difference in Lumion 3. Tiny request: Could you change the mouse-over text within the texture menu form "Change Bump texture" to "Change Normalmap"? Think this would immediately make clear what's needed there.