[Bf-cycles] Rendering with Radio waves

[Trevor Anderson]

Thanks heaps everyone, I'll have a look into Lux and pbrt.
Audio rendering is an interesting idea. Definitely something worth
considering.

I was hoping that at least initially I could limit myself to considering
large/smooth enough targets that the optical assumptions of light would be
sufficient.
I plan on taking some test images with a mmW radar system to compare to, so
I will pay close attention to the interference patterns and may need to
take another approach, thanks for the input.

Cheers,
Trev.



On Wed, Apr 9, 2014 at 6:56 PM, Ton Roosendaal <ton at blender.org> wrote:

> Hi,
>
> For physical accurate wavelength mechanics (millimeter waves interference
> and interaction with matter) you  might have to build a complete
> independent system - I'm afraid neither cycles or lux would help much here.
> You probably could investigate audio rendering (auralization).
>
> Light is in the nanometres spectrum, which allows a lot of assumptions and
> models to simulate an environment where light goes around and how to render
> it. These assumptions I wouldn't make for mm waves.
>
> -Ton-
>
> --------------------------------------------------------
> Ton Roosendaal  -  ton at blender.org   -   www.blender.org
> Chairman Blender Foundation - Producer Blender Institute
> Entrepotdok 57A  -  1018AD Amsterdam  -  The Netherlands
>
>
>
> On 9 Apr, 2014, at 8:34, Michael Fox wrote:
>
> > I would recommend looking into Luxrender as it has full spectral
> rendering, and is free and opensource and have very nice blender
> intergration, i would ask the luxrender people to help you, they are very
> helpful
> >
> > On 09/04/14 16:24, Trevor Anderson wrote:
> >> Thanks Lukas.
> >>
> >> I will take a more serious look at that then. :)
> >>
> >> Regards,
> >> Trev.
> >>
> >>
> >> On Wed, Apr 9, 2014 at 2:41 PM, Lukas Stockner <
> lukas.stockner at freenet.de> wrote:
> >> Hi,
> >> for a project like this, I wouldn't go for Cycles since it has no
> spectral rendering support and a quite complicated integrator code.
> >> My choice would be PBRT, since it has spectral support, clean and
> simple code and great documentation in form of a book :)
> >>
> >> Lukas Stockner
> >>
> >> Am 09.04.2014 01:38 schrieb Trevor Anderson <
> trevor.g.anderson at gmail.com>:
> >> >
> >> > Hi all,
> >> >
> >> > I am fairly new to blender and to development for that matter. So if
> anyone can point me in the right direction that would be much appreciated.
> Specifically if there is perhaps another open source ray-tracing tool that
> might be better for what I am looking to do.
> >> >
> >> > I am looking to use cycles to simulate millimetre wavelength radio
> wave imaging. As part of that I suppose I would be looking at trying to
> track polarization of the rays, but primarily changing the wavelengths
> captured by the camera. Ideally also exporting range information too.
> >> >
> >> > I was wondering if any of this had been done already, even for
> something like infra-red or hyper-spectral imaging, something that would
> give me a starting point.
> >> >
> >> > Thanks,
> >> > Trev.
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