Search found 157 matches

by lighting_freak
Tue Aug 20, 2019 5:17 am
Forum: User Support
Topic: dark juice
Replies: 131
Views: 3903

Re: dark juice

Hi Dade, Thanks for your feedback. If the light source is not intersectable, why don't we make the eye point intersectable? It has been done only on some research renderer (for instance Mitsuba), the probability to hit the eye is so low, for a light path, that has very little practical application. ...
by lighting_freak
Mon Aug 19, 2019 3:16 pm
Forum: User Support
Topic: dark juice
Replies: 131
Views: 3903

Re: dark juice

Hi everyone, it's more a question than a solution. If the light source is not intersectable, why don't we make the eye point intersectable? In all professional light simulation software solutions a pure forward simulation mode is used. I'm quite sure this forward (light) tracing could be speed up Op...
by lighting_freak
Wed Aug 07, 2019 5:51 am
Forum: User Support
Topic: CIE 171:2006
Replies: 10
Views: 928

Re: CIE 171:2006

Hi, Glad to hear that someone finally seems to be interested in validating lux cores abilities... As described the test case 1 (out of 12) worked out very well. Except the IES file case. The gained luminance values were by far too little. Currently I'm working on test case 2, but my motivation becom...
by lighting_freak
Fri Aug 02, 2019 8:40 pm
Forum: User Support
Topic: Light Intensities and Units
Replies: 10
Views: 581

Re: Light Intensities and Units

Hi, thanks for hearing someone else asking for units and values. Thanks also for sharing your findings according to luminance values in your render result. May I ask how you're reading those numbers from the image. I guess youre using the *.exr result somehow. Do you have a tool that allows you to t...
by lighting_freak
Sun Jul 21, 2019 9:21 am
Forum: Finished Work
Topic: Cavalry
Replies: 6
Views: 595

Re: Cavalry

Thank you for sharing this render with us...
Love the idea!
What else has been hidden in the scene?
I found an AT ST star wars machine and this guy in red in the middle of the scene...
by lighting_freak
Tue Jul 16, 2019 11:33 am
Forum: User Support
Topic: Variation of brightness during animation
Replies: 19
Views: 951

Re: Variation of brightness during animation

Hi, You said, render on CPU only. Is it BiDir? Do you use Metropolis? Have you tried Random? Avoid Sobol in your case. Yes, it's BiDir and it's always Metropolis... I'll try random but I'm afraid it wouldn't change anything. Additionally I'll try rendering without lux tonemapping - I'll postprocess ...
by lighting_freak
Tue Jul 16, 2019 8:58 am
Forum: User Support
Topic: Variation of brightness during animation
Replies: 19
Views: 951

Re: Variation of brightness during animation

Hi,

this is the result with half resultion and doubled samples:
ncnvbxpa.gif
The overall quality should is raised regarding noise - but the problem remain!

BR
by lighting_freak
Wed Jul 10, 2019 5:58 am
Forum: User Support
Topic: Variation of brightness during animation
Replies: 19
Views: 951

Re: Variation of brightness during animation

Hi, I don't know, but if you don't disable camera volume something like this may happen: Thanks for this links. It doesn't really explain why that happens, does it? Since everthing I do is CPU based, all GPU driver related issues can be denied. Toying around with the camera volume may lead to result...
by lighting_freak
Tue Jul 09, 2019 5:48 am
Forum: User Support
Topic: Variation of brightness during animation
Replies: 19
Views: 951

Re: Variation of brightness during animation

Hi, I've tested the scene with disabled camera clipping. The result seems to be the same: Animation4.gif Again the belonging *.blend file with it's settings: Brightness_Variation_During_Animation3.blend Changing the material settings is not an option for me - finally the real part will be made from ...
by lighting_freak
Fri Jul 05, 2019 7:41 am
Forum: User Support
Topic: Variation of brightness during animation
Replies: 19
Views: 951

Re: Variation of brightness during animation

Hi all, this are the proposed results. Doing simply the same renderings with a different random seed leads to this: - still strange bright/dark variations - which frame is bright and which is dark changes - noise pattern vary (as expected) This are the first 9 frames as single images as comparision....