white corrugated metal / lighting balance

hi all... few issues... as it's been awhile sense i've been in the rendering environment and getting frustrated with lighting controls in iRender nXt for sketchup. i have posted an image of a preliminary rendering. the house is cladded in all white corrugated metal, as you will see the roof (as well as some of the walls) are blown out and i can't find any suitable light balance to show the corrugation correctly while still exemplifying that this building is white. also, very frustrated with the reflections on the doors/windows that the software is adding. any help would be much appreciated. as i'm test running this software and would rather see what it is capable of without bringing images and layers into photoshop.

thanks in advance.

Attachments:

lot4sq.jpg, 170 KB

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Permalink Reply by Russell D. Houlden on June 16, 2016 at 10:03am

Jeff:

I sent you a private email with your model. Let me know if you don't get it in the next few minutes and I'll try again.

jeff bergeron said:

russell,

thank you very much for your help on this...

where is the link to the modified model?

thanks again!

j

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Permalink Reply by Russell D. Houlden on June 16, 2016 at 10:13am

We're always eager to help people learn about our software. Rendering is a complicated topic and we work very hard to make sure that our software is the easiest to learn and use. Having said that, there are always a few things that are somewhat subtle and so more deserving of an explanation. I hope that you will not hesitate to continue to post questions to the forum, these are topics that are interesting to everyone.

Russell D. Houlden said:

Jeff:

I sent you a private email with your model. Let me know if you don't get it in the next few minutes and I'll try again.

jeff bergeron said:

russell,

thank you very much for your help on this...

where is the link to the modified model?

thanks again!

j

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Permalink Reply by jeff bergeron on June 16, 2016 at 12:00pm

russell... thank you very much for your assistance. very helpful.

regards,

jeff

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Permalink Reply by Russell D. Houlden on June 16, 2016 at 2:50pm

This rendering is being processed with the IRender nXt unbiased rendering engine (Path Tracer). The only other difference is that I also turned on the sun, then lowered the sun intensity to soften the sun shadow. Because the Path Tracer solves lighting with no "bias" - the bounced light is very apparent, look at how nice and white the walls are! The sun is also illuminating the interior, so the reflections in the glass are more subtle.

Always a good idea to become familiar with the three options for rendering: Packet Mode - biased; Path Tracer - unbiased; and our Hybrid - Engine 4. Once you're familiar it will become easy to decide which engine to use for the scene you're rendering.