Whatis the meaning of No daylight portal

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Hi  everyone 

How  to  use " No  daylight portal"  located   the  Ttansparency ?

What's  the  reason  of  such  a   setting?

Thanks  o  lot!

 

[Peter Milner]

I think, by default, when you select interior with daylight as your lighting setup, Accurender automatically detects daylight sources which in reality is anything with a transparent material attached to it. If you then want other transparent objects in your scene which are not daylight sources, such as glasses or a glazed partition, then you can create a material with transparency and tag it as "No daylight portal".

Personally I prefer to turn the automatic detection off and then select my own daylight portals manually thus avoiding this confusion.

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Thanks  in  advance !

Another  question :Only   does   it    use   with   interior daylight  ?

[Peter Milner]

Yes, I think so.

[Ros. Riha]

1. just to clarify: once there are other transparent objects than windows themselves in my interior scene, automatic detection is slower Y/N?
2. Not the topmost priority, but it would probably make things simpler: why not to have the "daylight portal" property as the feature of a transparent material?

[Peter Milner]

That would mean having specific materials just for windows. Also, how would that work with my stained glass window render where I used a transparent decal rather than a material.

Of course, if you use Path tracer, then daylight sources aren't relevant.

[Ros. Riha]

"Of course, if you use Path tracer, then daylight sources aren't relevant."

clumsy me, I keep forgetting those differences:-) ... it would be good if irrelevant or unavailable options in pathtracer were (a) set to proper values automatically, (b) grayed out

"That would mean having specific materials just for windows"

Yes, it was exactly my point - in most cases it would really simplify the whole process

and, well, in rare cases such as your example it would not.-)

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Thanks!

the  third  question:  Only  the transparent matrerial  could  made  some  interiot  daylight source  when  I  have  the  settings  of  interior daylight  in  lighting settings   if  I   don"t   tag  it  as "No  daylight portal"?

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Could I have a understand  of  "autmaticly  lighting " if  I  have  the  settings  of  interior  daylight  with  the  transparent  material?

[Peter Milner]

When you select the preset "Interior Daylight", under the advanced tab you will see a ticked box for Automatic Daylight Portals. This means Accurender will consider all transparent materials to be daylight sources unless you edit the material for No Daylight Portal.

I prefer to un-tick the box and select my own daylight portals using Accurender Object Properties.

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I  see!  thanks  a   lot!

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Thanks.  But  I  have  another question  :

the  "daylight  portal"   is  also   located   Object Properties .

What"s the differences  between the  two  "daylight  portal"?

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Also  ,How  to  use  tesselation?