I am trying to use Nona to create an equirectangular pano from 5 images with 90° FoV, shot at orthogonal angles.
It's basically a North, South, West, East and Up image. The images are already full HDR and they are matching exactly edge to edge. So all I need the software to do is the geometric remapping from this cubic type mapping to the equirectangular. Geometrically everything is working very well, the resulting image is perfectly remapped. BUT it has somehow lost its HDR dynamic range. The file format is still HDR (I tested both exr and TIFF/Float), but the actual pixel data has lost its dynamic and is kind of remapped to LDR values. I started out using Hugin to create the project, and then went on to manually tweaking the .pto files Nona parameters. For example Hugin always has "R0" in it's p line. I tried making that "R1" but it changed nothing. I looked at the intermediate .exr files generated by Nona and it seems HDR dynamics are lost already in the first xxx_hdr_000n.exr files that are generated. So what I have is: #hugin_ptoversion 2 p f2 w8000 h4000 v360 E1 R1 n"TIFF c:LZW" T"FLOAT" m g1 i0 f0 m2 p0.00784314 i w6000 h6000 f0 Eb1 Eev1 Er1 Ra0 Rb0 Rc0 Rd0 Re0 Va1 Vb0 Vc0 Vd0 Vx0 Vy0 a0 b0 c0 d0 e0 g0 p0 r0 t0 v90 y0 Vm5 u10 n"A-000.tif" i w6000 h6000 f0 Eb1 Eev1 Er1 Ra=0 Rb=0 Rc=0 Rd=0 Re=0 Va=0 Vb=0 Vc=0 Vd=0 Vx=0 Vy=0 a=0 b=0 c=0 d=0 e=0 g=0 p0 r0 t=0 v=0 y90 Vm5 u10 n"A-090.tif" i w6000 h6000 f0 Eb1 Eev1 Er1 Ra=0 Rb=0 Rc=0 Rd=0 Re=0 Va=0 Vb=0 Vc=0 Vd=0 Vx=0 Vy=0 a=0 b=0 c=0 d=0 e=0 g=0 p0 r0 t=0 v=0 y180 Vm5 u10 n"A-180.tif" i w6000 h6000 f0 Eb1 Eev1 Er1 Ra=0 Rb=0 Rc=0 Rd=0 Re=0 Va=0 Vb=0 Vc=0 Vd=0 Vx=0 Vy=0 a=0 b=0 c=0 d=0 e=0 g=0 p0 r0 t=0 v=0 y270 Vm5 u10 n"A-270.tif" i w6000 h6000 f0 Eb1 Eev1 Er1 Ra=0 Rb=0 Rc=0 Rd=0 Re=0 Va=0 Vb=0 Vc=0 Vd=0 Vx=0 Vy=0 a=0 b=0 c=0 d=0 e=0 g=0 p90 r0 t=0 v=0 y0 Vm5 u10 n"A- UP.tif" -- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/hugin-ptx
