[Radiance-general] Issues running pmap demos

[Chris Kallie]

Thanks Robert and Sarith,

I edited the downloaded demo files, by removing the extra letters from 
rtrace's and rpict's -ap options, and now they all work. Must have been 
a version difference. Either way, the demos are helpful supplementary to 
the user manual, for anyone else interested. Website: 
https://www.ise.fraunhofer.de/en/business-areas/energy-efficient-buildings/research-topics/lighting-technology/rd-services/lighting-simulation/radiance-photon-mapping/copy_of_photon-mapping 


Thanks again!
Chris

On 10/16/15 11:55 AM, Sarith Subramaniam wrote:
>
> Chris,
>
>
> The options that you have listed below are meant for mkpmap. The maps 
> created through mkpmap are then incorporated in rpict or rtrace 
> through the -ap option.
>
> As mentioned in page 18 of the photonmap manual 
> <http://www.radiance-online.org/learning/documentation/photonmap-user-guide>, 
> the workflow is roughly:
>
> mkpmap -apg globalpmap nphotons -apc causticpmap nphotons octree
>
> rpict -ap globalpmap bwidth -ap causticpmap bwidth -ab 1 -vf view octree
>
> I was able to get it to work on Linux as well as Windows. If you are 
> on Linux and interested in just rendering images, you could even use 
> the TRAD program to setup the pmap options for you.
>
>
> Sarith
> On Fri, Oct 16, 2015 10:57 AM, *Chris Kallie <kallie at umn.edu>* wrote:
>
>     Hello,
>
>     I've scoured the Internet for some pmap demos, and came up with a few
>     scripts. The problem I am getting is in the recommended reverse ray
>     tracing commands. I see the following errors:
>
>     rtrace: fatal - command line error at '-apd'
>     rtrace: fatal - command line error at '-apg'
>     rtrace: fatal - command line error at '-app'
>     rtrace: fatal - command line error at '-apc'
>     rtrace: fatal - command line error at '-apv'
>     rpict: fatal - command line error at '-apd'
>     rpict: fatal - command line error at '-apdb'
>     rtrace: fatal - command line error at '-apdb'
>
>     I understand that rpict and rtrace don't have these options (maybe they
>     were there in earlier versions of Radiance). Is there a resource that
>     can explain these differences? Or, is there a more recent set of demos
>     for the pmap function? I may also be having compilation errors, so I'm
>     pretty much open to any explanation.
>
>     At your mercy, always,
>     Chris
>
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