[Radiance-general] 360 degree rendering

[Greg Ward]

If you send me your input files and exact commands in a private message, I'll have a look. There's nothing in your parameters to explain your grainy results. My only guess at this point is that your light sources might be right triangles rather than rectangles, which screws up source sampling.

Cheers,
-Greg

Sent from my iPad

> On Jun 30, 2017, at 9:08 PM, Raghuram Kalyanam <kalyanam at rhrk.uni-kl.de> wrote:
> 
> Hi Mark,
> 
> Thanks for answering, I tried with IPD 0 and its still same. I changed the default to also zero in cal file. Any idea how do i improve the graininess of the picture?
> 
> Best Regards,
> Raghu
> 
>> On Jun 30, 2017, at 4:27 PM, Mark Stock <mstock at umich.edu> wrote:
>> 
>> Raghu,
>> 
>> An easy, though somewhat inefficient, way to get a single-eye view
>> without digging into the script would be to change the IPD to 0.
>> 
>> Mark
>> 
>>> On 6/30/17, Raghuram Kalyanam <kalyanam at rhrk.uni-kl.de> wrote:
>>> Thanks Greg. That was helpful. I generated the VR images. Could I get only
>>> get the 360 degree projection only for one eye  using that cal file, if so
>>> which variable should i tweak. Here
>>> <https://seafile.rlp.net/f/5c3a3a6aeecb42faa3de/?dl=1> is a sample image i
>>> wanted to produce.
>>> 
>>> Also there is lot of noise in the picture and appears grainy. I increased
>>> -ab but it didn't improve much. i tried other parameters, here is a glimpse
>>> of the command.
>>> 
>>> X=2048; Y=2048; cnt $Y $X | rcalc -f view360stereo.cal -e
>>> "XD:$X;YD:$Y;X:0;Y:0;Z:1.25;IPD:0.06;EX:0;EZ:0" | rtrace -dp 4096 -ar 256
>>> -ds .02 -dj .9 -dt .05 -dc .75 -dr 3 -ss 16 -st .01 -ab 5 -aa .03 -ad 1024
>>> -as 512 -lr 12 -lw 1e-5 -x $X -y $Y -fac scene.oct  > out4.hdr
>>> <https://seafile.rlp.net/f/7f343d2d476e43b2b546/?dl=1>
>>> 
>>> Best Regards,
>>> Raghu
>>> 
>>>> On Jun 26, 2017, at 4:57 PM, Greg Ward <gregoryjward at gmail.com> wrote:
>>>> 
>>>> Hi Raghu,
>>>> 
>>>> Mark Stock created the attached file "view360stereo.cal" that makes a 360°
>>>> stereo panorama in the standard format for such viewers.  This was checked
>>>> into the Radiance HEAD back in January.
>>>> 
>>>> Cheers,
>>>> -Greg
>>>> 
>>>> <view360stereo.cal>_______________________________________________
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