Search found 162 matches

by lighting_freak
Mon Oct 14, 2019 11:12 am
Forum: Development
Topic: LuxCore v2.3 proposed features
Replies: 83
Views: 6521

Re: LuxCore v2.3 proposed features

Well the difference is that such a ray file source describes the appearance of the light emitting surface additionally. It doesn't reduce the light source down to a point...

The far field intensity should be equal to the IES source description.
by lighting_freak
Mon Oct 14, 2019 4:45 am
Forum: Development
Topic: LuxCore v2.3 proposed features
Replies: 83
Views: 6521

Re: LuxCore v2.3 proposed features

Hi, What do you think about integrating ray file support? It would allow lux core a simple and correct usage of artificial real world light sources... Follow this link to find some professional offered data, in this case for a single LED. https://www.osram.com/apps/downloadcenter/?path=%2Fos-files%2...
by lighting_freak
Tue Oct 08, 2019 9:33 pm
Forum: Development
Topic: LuxCore v2.3 proposed features
Replies: 83
Views: 6521

Re: LuxCore v2.3 proposed features

They didn't collected a lot of votes: Unfortunatly true! Do you think this might be due to a lack of available real world properties? I mean woudn't it be helpful to know scattering properites of real fog instea of toying around with shader parameters? Maybe we can arrange some kind of scientific s...
by lighting_freak
Tue Oct 08, 2019 8:06 pm
Forum: Development
Topic: LuxCore v2.3 proposed features
Replies: 83
Views: 6521

Re: LuxCore v2.3 proposed features

Hi, one more question is it already too late to ask what happend to the features that were postponed from V2.2? I placed some wishes for integration of more scientific material definitions (like tabulated data from old lux render) I really have lots of troubles to transfer wavelenght dependent mater...
by lighting_freak
Tue Oct 08, 2019 7:53 pm
Forum: Development
Topic: Shadow rays transparency for path tracers (aka hybrid glass)
Replies: 16
Views: 1908

Re: Shadow rays transparency for path tracers (aka hybrid glass)

Hi, this hybrid glass sounds totally like a good solution for lot of rendering issues. Does it work with roughness option also (or will it work for rough transparent surfaces in near future)? Could you imagine to calculate the transparency according to Fresnel equations? This should allow more preci...
by lighting_freak
Tue Aug 20, 2019 5:17 am
Forum: User Support
Topic: dark juice
Replies: 131
Views: 5724

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: 5724

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: 1099

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: 830

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: 799

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...