How to seperate Diffuse Reflectance in Multiple sources???

[유성권]

Hi Dr. Fang,

Can you please let me know how to seperate Diffuse Reflectance in Multiple sources??

In demo_multisrc.m, flux can be stored separately by using srcid -1.

But data of det is not seperated by sources and there is no original source information in each photon data.

I want to calculate diffuse reflectance from each sources for DOT simulation.

Running codes after chaning srcid is one of solutions. but it will take time cost.

Thank you for your help.

[Qianqian Fang]

good catch.

the multi-source implementation was supposed to return a new sub-field, detp.srcid, when multi-source is used; the trajectory data is also supposed to return the respective srcid in the 6th rows of traj.data that was previously reserved.

however, after seeing your report and I took a look of the code, I found that there was a bug that prevents both srcid to be returned.

I created a new issue here

https://github.com/fangq/mcx/issues/217

and was able to fix it with a 1-line change.

Please wait for this CI action to be completed

https://github.com/fangq/mcx/actions/runs/8334626781/job/22808550112

and download the updated packages at

https://mcx.space/nightly/github/

it should now return detp.srcid and traj.srcid after the update.

Qianqian

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[Giulia Maffeis]

Dear Dr. Fang,

I am trying to use the multi-source option as well, but the following error appears, even with demo_multisrc.m: "simulating multiple sources currently can not be used with photon-sharing". I am using the latest software version. What could be the problem?

Thank you for your time and consideration.

Best regards,

Giulia Maffeis