Very slow render

[art-MIXER]

Why do you set glass IOR as water IOR?

It was an accident, after much experimentation, I checked the effect of the change in IOR large windows on the total render time )


I also noticed a strange thing, when the background is made self-illuminated material does not emit light, it is visible only in the line of sight, and only the environment reflections (Corona sky), and when I turn on the light emission mode, it then appears in the reflections. For this reason, I began to use a conventional corona material with self-illumination and diffuse level 0, putting it in Ray switcher reflection / refraction / direct. As such, the background is reflected in all objects and can be seen in the line of sight. Faced someone similar?

[PROH]

... and why do you use noise as bump?

It looks like you used a water material on your windows?

[art-MIXER]

... and why do you use noise as bump?

It looks like you used a water material on your windows?

Glass is never a perfectly flat surface, there is a slight distortion on the surface, you can see for yourself staring at your window) Because I use a very weak noise on the bump, approximately 0,001-0,002

About IOR I have said, it was an experiment, I usually use IOR 1.5-1.7 for ordinary glass

[juang3d]

What do you get if you use bucket mode, and a 20/6 configuration?

Also, what is the resolution you are rendering too (the one you need)
In a 2600k a 1080p of a complex interior can go up to 2 hours or so and be pretty clean, maybe not completely, but clean enough to use some post do finish the clenaning.

Cheers.

[maru]

Here is an article on making background objects and materials:
https://coronarenderer.freshdesk.com/support/solutions/articles/5000515605

Hope it helps. Never use Corona material with self illumination for such things.


Why did you use rayswitch material for glass? It shouldn't increase render time but does it have any real purpose?

[Juraj]

Rayswitch in Corona is the strangest thing ever starting with name. Recently tried to use it and it behaved exactly opposite of what I would expect from the nomenclature ("GI" of lightmaterial was visible directly while it should have simply contributed to GI and visibility slot would be ignored;).
What is the reason behind design so opposite of the Vray's one ? The 'override' design is much more logical.

Sorry for off-topic, originally went to ask same question as Maru, why the rayswitch for Glass :- ).

[maru]

<offtop>

Rayswitch in Corona is the strangest thing ever starting with name. Recently tried to use it and it behaved exactly opposite of what I would expect from the nomenclature ("GI" of lightmaterial was visible directly while it should have simply contributed to GI and visibility slot would be ignored;).
What is the reason behind design so opposite of the Vray's one ? The 'override' design is much more logical.

Are you referring to rayswitch map or material? :)
</offtop>

[art-MIXER]

Here is an article on making background objects and materials:
https://coronarenderer.freshdesk.com/support/solutions/articles/5000515605

Hope it helps. Never use Corona material with self illumination for such things.


Why did you use rayswitch material for glass? It shouldn't increase render time but does it have any real purpose?

- Thank you, I'm not reading the recommendations made in the same intuition told )

- I'm just looking for ways to reduce render time and makes even the most absurd experiments like this )))