Author Topic: pixel issue in sky and pix issue in window reflection  (Read 3610 times)

andradechristo

    Reputation: 4
pixel issue in sky and pix issue in window reflection
« on: July 04, 2012, 09:15:14 am »
July 04, 2012, 09:15:14 am
big issue with this project, which i can not get to look good. This is frustrating as i really want consistency. The sky is pixelated and the reflection in the windows is extremely poor. i also cant control the reflections very easily with the Lumion 2 methodology.

can anyone please help?

Re: pixel issue in sky and pix issue in window reflection
« Reply #1 on: July 04, 2012, 10:27:28 am »
July 04, 2012, 10:27:28 am
Hi andradechristo, the 360 degree reflection map that is projected onto all reflective materials is rendered at the position where you place the Reflection Control object. If you don't place it manually, it is placed a few hundred meters above the ground by default. This position ensures that reflective materials will mainly reflect the sky and the ground.

As you have noticed, the resolution of this reflection map leaves a little to be desired.

You can't eliminate this pixelation entirely, but there are some tips that might help you hide the problem:

1) Reduce the reflection amount of the Glass material.
2) Lower the Glossiness slider of the Glass material to blur the pixelated reflections.
3) Place the Reflection Control object high above the ground, so that your windows mainly reflect the sky and ground.

andradechristo

    Reputation: 4
Re: pixel issue in sky and pix issue in window reflection
« Reply #2 on: July 04, 2012, 03:28:07 pm »
July 04, 2012, 03:28:07 pm
Thanks Morten for you help, i didn't have this problem in earlier versions? is this a new issue?

This doesn't however answer why the clouds are pixelated? any ideas why this is?

Re: pixel issue in sky and pix issue in window reflection
« Reply #3 on: July 04, 2012, 04:58:46 pm »
July 04, 2012, 04:58:46 pm
Thanks Morten for you help, i didn't have this problem in earlier versions? is this a new issue?

In Lumion 1, the 360 degree reflection texture was rendered at the camera position by default (however, the position could be manually set with a camera control effect in the Movie section).

In Lumion 2, the developers decided to replace this with a 100% manual solution, i.e. the Reflection Control object.

The pixelated reflections have always been like this though, ever since version 1. The 360 degree reflection texture that is projected onto all reflective materials can't have unlimited resolution (then your graphics card would have no memory left for the textures of other materials in your scene), so the developers have to limit the resolution to prevent out-of-memory situations.

The easiest way to make the pixelated reflections less noticeable is to lower the Glossiness slider of the Glass material in order to blur the pixelated reflections.

andradechristo

    Reputation: 4
Re: pixel issue in sky and pix issue in window reflection
« Reply #4 on: July 04, 2012, 10:48:17 pm »
July 04, 2012, 10:48:17 pm
I see, thank you for your explanation.

What about the pixelated clouds to the top right of the image?

Re: pixel issue in sky and pix issue in window reflection
« Reply #5 on: July 05, 2012, 11:30:04 am »
July 05, 2012, 11:30:04 am
Apologies, I misunderstood what you meant by "This doesn't however answer why the clouds are pixelated?".

This problem is caused by filtering (it's on the bug tracker list).

Hilde Bruheim

    Reputation: 0
Re: pixel issue in sky and pix issue in window reflection
« Reply #6 on: August 11, 2012, 12:11:02 pm »
August 11, 2012, 12:11:02 pm
Just bump this thread about the pixel reflection on the glass.

Check this video by Lumion:
Architectural visualization: Import your 3D model Tutorial 4 with Lumion3D


The reflection of the sky seems to be very clear.
Have I missed something in the settings to obtain a better resolution? ???


Re: pixel issue in sky and pix issue in window reflection
« Reply #7 on: August 12, 2012, 06:32:18 pm »
August 12, 2012, 06:32:18 pm
check if you have "Low mem mode" enabled... this reduces resolution in some places. Also: when glossiness is low it wil pick a lower resolution sky map that is blurred.