Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: lhenix on 2014-03-18, 16:01:17

Title: What's hapening?
Post by: lhenix on 2014-03-18, 16:01:17

Reflection and refaction material's objects has many withe pixel,I don't know why?Is this a BUG of A6?

Title: Re: What's hapening?
Post by: maru on 2014-03-18, 16:13:15

It probably means you are using crazy lights. What are the settings of your ceiling lights?

Title: Re: What's hapening?
Post by: lhenix on 2014-03-19, 03:47:17

What?No,tihs scense use corona's sunlight\eviroment\slef-illumination in A6,
and use A5 get result don't have more and more white pixel,
see this picture,same render area,isn't look like A6 rendered result..

Title: Re: What's hapening?
Post by: romullus on 2014-03-19, 09:58:57

The less information you give, the less probability that you'll be given correct answer.

Edit: btw, i think maru is right: look at the reflections of your light sources on the wall - they're crazy high.

Title: Re: What's hapening?
Post by: lhenix on 2014-03-19, 10:10:43

Quote from: romullus on 2014-03-19, 09:58:57

The less information you give, the less probability that you'll be given correct answer.

Edit: btw, i think maru is right: look at the reflections of your light sources on the wall - they're crazy high.

turn off all wall lights,and get this result,less white pixel than before,but still......
see this pictture......

Title: Re: What's hapening?
Post by: Polymax on 2014-03-19, 10:43:31

can you post this scene for investigation?

Title: Re: What's hapening?
Post by: lhenix on 2014-03-19, 11:39:25

Quote from: Polymax on 2014-03-19, 10:43:31

can you post this scene for investigation?

upload scense....

Title: Re: What's hapening?
Post by: Polymax on 2014-03-19, 12:36:48

ok! Investigated!
1. You used just white color in Env instead HDRI or CoronaSky - this is not correct
2. Your geometry of scene are thin - this is problem for Corona and this is not correct
3. You need reset render setup (just in case) because this scene translate from prev.version of Corona

Title: Re: What's hapening?
Post by: Ludvik Koutny on 2014-03-19, 12:48:44

There is nothing wrong about having white color as an environment map :) It will affect look, sure... but it will not affect performance or amount of artifacts in render.

Title: Re: What's hapening?
Post by: Polymax on 2014-03-19, 13:25:52

Quote from: Rawalanche on 2014-03-19, 12:48:44

There is nothing wrong about having white color as an environment map :) It will affect look, sure... but it will not affect performance or amount of artifacts in render.

I gave an overall assessment, including artistic component.

Title: Re: What's hapening?
Post by: lhenix on 2014-03-20, 06:52:59

Quote from: Polymax on 2014-03-19, 12:36:48

ok! Investigated!
1. You used just white color in Env instead HDRI or CoronaSky - this is not correct
2. Your geometry of scene are thin - this is problem for Corona and this is not correct
3. You need reset render setup (just in case) because this scene translate from prev.version of Corona

Thanks a lot ~!
I'll test it.....

Title: Re: What's hapening?
Post by: Ondra on 2014-03-21, 17:56:55

ok, I took a look at the scene and found no foul play here. The dots are random reflections/refractions caused by rays hitting directly the sun. You can get rid of them by disabling "visible in reflections" and "visible in refractions" for the sunlight. Also, I got more or less the same result with A5:
(http://i.imgur.com/GsvgLES.png)