What's hapening?

[lhenix]

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

[maru]

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

[lhenix]

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..

[romullus]

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.

[lhenix]

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......

[Polymax]

can you post this scene for investigation?

[lhenix]

can you post this scene for investigation?

upload scense....

[Polymax]

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

[Ludvik Koutny]

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.

[Polymax]

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.

[lhenix]

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.....

[Ondra]

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: