Glass Mat is rendered black

[Juniorsatan]

Hi,

I modelled a light bulb in Cinema, used Glass Material and in Indigo the renders became black. Don't know why :/.

The rendered images look kind of that.




I already tried Optimizing-function, because i got a list of triangle errors. Afterwards I didn't got those errors again in the log. Next idea was pre-converting. Same black render again...

Perhaps it helps to be able to take a look in the .c4d, so you can download it here.


used sw: Cinema 4D 10 , Indigo 1.1.10 & Cindigo 1.1.10

[PureSpider]

Reverse the normals on the glass... Mentioned the 473974394th time now

[cpfresh]

kind of OT .. what is this 'optimizing-function'?

[PureSpider]

It's removing duplicate points in a defined "range", removing unused points and optimizing the tris... doesn't do nothing with the normals though

[pixie]

There are some issues, first you have the bulb as a solid glass which is no good, second you have black as absorption meaning that it will absorb lots light therefore rendering it black, third some reversed normals, four the light itself has too much power, five check the size of the lamp to correspond with real life values, six check global scale so the scee conform to real units.



Suggestions, 1) create a thin glass, 2) turn absorption till full white and play from there, 3) turn the gain down

[FakeShamus]

2) turn abortion till full white and play from there

...erm, I know you meant "absorption" there - but still one of the more awkward typos I've seen lately.

[pixie]

2) turn abortion till full white and play from there

...erm, I know you meant "absorption" there - but still one of the more awkward typos I've seen lately.

second you have black as absorption meaning that it will absorb

for me absorption was written as absortion would be written as heard, at least in my native language the fact this typo existed is due to the fact that I missed the s and abortion is a correct written word. Still, abortion is just a word, don't gave it any more importance then it deserves... (then there's the fact that chrome eats little letters for breakfast )

[Juniorsatan]

Thank you so much!

I "repaired" my scene with help of your suggestions, now it runs fine.


and sry for asking question # 43785372

[PureSpider]

and sry for asking question # 43785372

May we see a pic of your scene being all fine now?

[Juniorsatan]

and sry for asking question # 43785372

May we see a pic of your scene being all fine now?

Yes of course. Just forgot it.

In fact, I rendered a lot of images, but the most noise-free images are



and



As soon as I tried to emit light from the conductor (by using light layers), the entire scene went black. Except for some caustics or the like. Don't know why (second time! )

[pixie]

One thing the I wasn't able to fix was to put the light inside, it just went black with lots of fireflyes in the process... But they become quite a nice bulbs for sure;)

[Juniorsatan]

So there isn't any chance to get the glow wire annealing and illuminating a scene? Like rl.exe...

[zsouthboy]

?

Junior, it works quite well for me, with render layers:

http://www.indigorenderer.com/joomla/fo ... 1192#61192

[Juniorsatan]

Perhaps other lights made problems in my scene!? don't know.
did you use quite high settings for illuminating?

[zsouthboy]

Juniorsatan:

There are 4 emitters in that scene: 3 large softboxes @ 100 watts each, and the filament @ a much higher level - 1000 or 2000.

Thanks to light layers, you can adjust the relative intensity of all the lights [which is all you'll be doing with Reinhard tonemapping anyway] without having to rerender.