[Radiance-general] 答复: 答复: Render tregenza sky patches by rcontrib and pcomb

[Axel Jacobs]

Is the vwrays command definitely enclosed in back ticks?
Alternatively try this (in BASH):

vwrays -ff -x 600 -y 600 -vf views_up.vf  | rfluxmtx @rtc.opt -v  -ffc
$(vwrays -d -x 600 -y 600 -vf views_up.vf) -o sky_tre_p%d.hdr -
test_sky.rad -i a.oct


On 12 October 2017 at 08:11, Wang Clarence <wangjuncwz at hotmail.com> wrote:
> I  am using the 5.1.0.
>
> According to my code that I mentioned before, the "combine.hdr" was
> rendered, but it could not be well opened and displayed like other patch
> images with ".hdr".
>
> Actually, I have been also trying the method of "rfluxmtx" , then it
> returned " cannot load '-o'" when I run bash.
>
> #vwrays -ff -x 600 -y 600 -vf views_up.vf  | rfluxmtx @rtc.opt -v  -ffc '
> vwrays -d -x 600 -y 600 -vf views_up.vf ' -o sky_tre_p%d.hdr - test_sky.rad
> -i a.oct
>
> I will appreciate your helping.
>
> Best,
>
> Clarence
>
>
>
>
> ________________________________
> 发件人: Greg Ward <gregoryjward at gmail.com>
> 发送时间: 2017年10月12日 4:19
> 收件人: Radiance general discussion
> 主题: Re: [Radiance-general] 答复: Render tregenza sky patches by rcontrib and
> pcomb
>
> Hi Clarence,
>
> This should be correct.  What version of Radiance do you have?  (I.e., what
> does "rpict -version" return?)
>
> Does it report any error at all?  Is the output file completely empty?
>
> It works when I run it using 5.1, and I'm pretty sure it will work for
> anything later than the 4.1 release, which was in 2011.
>
> Cheers,
> -Greg
>
> From: Wang Clarence <wangjuncwz at hotmail.com>
>
> Date: October 11, 2017 8:15:46 PM PDT
>
>
> Thanks for the advice.
>
> I have tried, but the "result.hdr" was not a format of picture, which meant
> that the rendering was failed.
>
> #gensky 3 21 10 +s -a 22 -o 114 | genskyvec -m 1 -c 1 1 1 > tmp_skydist.dat
>
> #vwrays -ff $vw |rcontrib @rtc1.opt -ffc $(vwrays -d $vw) -V+ -f
> tregenza.cal -b tbin -bn Ntbins -o first_tre_p%d.hdr -m skyglow
> test_sky_sun.oct
>
> #dctimestep first_tre_p%d.hdr tmp_skydist.dat > combine.hdr
>
> Or, any parameters should be needed in the third line?
>
> Best,
>
> Clarence
> ________________________________
> 发件人: Greg Ward <gregoryjward at gmail.com>
> 发送时间: 2017年10月11日 18:09
> 收件人: Radiance general discussion
> 主题: Re: [Radiance-general] Render tregenza sky patches by rcontrib and pcomb
>
> Hi Clarence,
>
> Rather than trying to fix Axel's old script, it's better to use the simpler
> and more efficient dctimestep method:
>
> dctimestep first_tre_p%d.hdr skydist.dat > result.hdr
>
> You can also simplify the rcontrib step using the rfluxmtx program, but what
> you have is fine.
>
> Cheers,
> -Greg
>
> From: Wang Clarence <wangjuncwz at hotmail.com>
>
> Date: October 11, 2017 6:27:45 AM PDT
>
>
> Dear all,
>
> I've been trying to render the Tregenza sky patches by using rcontrib. Each
> patch was rendered successfully, but when I use "pcomb" which contains
> "tregsamp.bash" by Axel Jacobs to combine them, the "combined.hdr" was a
> black picture.
>
> #vwrays -ff $vw |rcontrib @rtc1.opt -ffc $(vwrays -d $vw) -V+ -f
> tregenza.cal -b tbin -bn Ntbins -o first_tre_p%d.hdr -m skyglow
> test_sky_sun.oct
>
> #pcomb -h $(bash apply_tregsamp_1.bash) > combine_1.hdr
>
> #the original bash script below by Axel Jacobs was changed in order to be
> consistent with my code.
>
>
> # Path to the patch images
>
> imgpath="image_fisheye/patches_tre/first_tre"
>
> for i in $imgpath_*.hdr; do
>         # Scan patch number from file name
>           patch=$(ls $i \
>                           |rcalc -i "$imgpath_p\${pnum}.hdr" \
>                            -e "\$1=pnum")
>         # Get multiplier from dat file, based on record number
>           multi=$(cat tmp_skydist.dat \
>                           |rcalc -e
> "diff=$patch-recno+1;absdiff=if(diff,diff,-1*diff);
>
>    \$1=if(absdiff,0,\$1);" |total)
>           echo " -s $multi $i"
>
> done
>
>
>
> #EOF
>
> Thanks,
>
> Clarence
>
>
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