Sun setting

[fabb73]

Hi i'm new in the forum, i write from Italy, Venice

I'm now learning how to set the sun light to produce architectural render as this metode seams to be really nice for buildings and interiors where you need natural lighting.
The point is that the manual talk about this issue with few terms and when i begun to render with sun the result was a shit! > >
too many values to set and the phisical camera is so sensible and a little variations of some index make a big changing...
please can you give me a scene still setted to permit me to understand his configuration.....i thank you a lot in advance.

[fabb73]

Re: Sun setting

Hi i'm new in the forum, i write from Italy, Venice

I'm now learning how to set the sun light to produce architectural render as this metode seams to be really nice for buildings and interiors where you need natural lighting.
The point is that the manual talk about this issue with few terms and when i begun to render with sun the result was a shit! > >
too many values to set and the phisical camera is so sensible and a little variations of some index make a big changing...
please can you give me a scene still setted to permit me to understand his configuration.....i thank you a lot in advance.

Thanks to all ....you are very kind with the new members ???

[Alexander Petrov]

Re: Sun setting

Hi fabb73, there's no universal VraySun settings. The best thing, is to adjust Sun posittion and settings manually depending of your expectations The Sun settings are detailed explain in Vray for Rhino manual, you should read it!
For Sun posittion tests, you may check - "override material option" - this will strongly decrease test render times.
Hope that be useful for you

Best Regard, Alex

[fabb73]

Re: Sun setting

Thankyou Alex!

[fpedrogo]

Re: Sun setting

Basically there three main way to control the exposure using the physical camera

Shutter speed - this option is the time that the shutter stays open. More time open, more light is coming into the camera and more brighter render. This value means 1 over the number that you put there in second.
for example if you use 100, that mean 1/100 so the real value is .01 sec. If you us 5, the real time is 1/5 so the time is .5 sec. That means smaller value = brighter render, large value = darker render
We don't support motion blur right now, but when we support the motion blur, the Shutter Speed also control the motion blur.

F-Number - this option controls the width of the aperture and the exposure. This option have a indirect relationship with the brightness of the render. That means that large value = darker render and small value = brighter render. This option also controls the Depth of field. Small value = large DOF effect, while Large values = small DOF effect.

Film (ISO) - this option only controls the exposure of the render and have a direct relationship with it, thus is the easy way to increase or decrease the brightness of the render. That means smaller value = darker render and Larger values = brighter render.

I recommend to all of the beginner user that only control the exposure of your render through the Film (ISO), because it ease and simple.

You can find more information in our user manual.

Best