<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;color:#26282a;"><blockquote><div>"You got my clickbait? I got your attention."</div></blockquote><div dir="ltr" data-setdir="false"><font size="3">Always an entertaining email from Stefan!<br></font></div><div><div dir="ltr"><br></div><blockquote><div dir="ltr">"Nothing on the internet mentions that Cinelerra is capable of editing 360 <br></div><div dir="ltr">video's, but it certainly is: with the help of ffmpeg's F_v360 plugin. <br></div><div dir="ltr">Either creating the 360 content, or extracting it in a regular video."</div></blockquote><div dir="ltr" data-setdir="false"><font size="3">It may be that no one has experimented with it yet. There is 1 line in the manual about <span>that F_v360 does - <span>Convert 360 videos between various formats - but there are so many ffmpeg plugins it can be hard to keep up. There is also the native SphereCam video plugin that Adam added to HV a few years back and was ported into GG which I think he made a online video of using.</span></span><br></font></div><div dir="ltr"><br></div><blockquote><div dir="ltr">:So as you all already expected from my I was doing stuff with Cinelerra-gg <br></div><div dir="ltr" data-setdir="false">that likely nobody did before and noticed some particularities <span> </span><br></div><div dir="ltr">really did not understand. My steps:<br></div></blockquote><div dir="ltr"><br></div><div dir="ltr">1. My project settings remain 1920x1080.<br></div><div dir="ltr"><br></div><div dir="ltr">2. Just grab any equirectangular video bigger than your project size. The <br></div><div dir="ltr">one I got my hands on was 4096x2048.<br></div><div dir="ltr"><br></div><div dir="ltr">In my project I want to use a part of this video as illustration of the <br></div><div dir="ltr">user experience. This would mean I need to project the equirectangular <br></div><div dir="ltr">projection into a flat projection.<br></div><div dir="ltr"><br></div><div dir="ltr">3. For the plugin settings that would be input=0 and output=4.<br></div><div dir="ltr"><br></div><div dir="ltr">What I noticed when I modulated the yaw was that I would never see the <br></div><div dir="ltr">entire view, then when rotating the back of the video would 'clip' at -180 <br></div><div dir="ltr">degrees.<br></div><div dir="ltr"><br></div><div dir="ltr">4. When changing the camera to Z = 0.469 (1920/4096) I was able to get a <br></div><div dir="ltr">360 degree rotatable camera.<br></div><div dir="ltr"><br></div><div dir="ltr">5. Setting up d_fov = 120, the image would be closely mimicking the <br></div><div dir="ltr">experience.<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><blockquote><div dir="ltr">"Now what Cinelerra bring you from this point. Keyframing a property of the <br></div><div dir="ltr">plugin, and there it becomes interesting.<br></div><div dir="ltr">Plugin keyframes seem to give the control what we are looking for here. I <br></div><div dir="ltr">can set the yaw using "Generate keyframes while tweeking", but what I would <br></div><div dir="ltr">be actually looking for is the same set of curves that would be available <br></div><div dir="ltr">when changing x,y,z,opacity etc. <b>How would I get interpolation working?<br></b></div><div dir="ltr"><b><br></b></div><div dir="ltr"><b>Could anyone elaborate how Cinelerra knows it can interpolate some of the <br></b></div><div dir="ltr"><b>parameters, but not others?"</b></div></blockquote><div dir="ltr"><b><br></b></div><div dir="ltr" data-setdir="false"><b>Maybe IgorBeghetto knows the answer</b> to the above 2 questions from Stefan. Meanwhile I will<b> </b>try to test F_v360 and see if I can make any sense of it. (I need a 360 GoPro camera - ha, ha).<br></div><div dir="ltr"><br></div><blockquote><div dir="ltr">"And personally I think what is more fundamentally lacking in Cinelerra: a <br></div><div dir="ltr">timeline view analogue to Blender where any property can be placed in view: <br></div><div dir="ltr">where I would suggest to normalise the min and max to sensible properties <br></div><div dir="ltr">opposed to the current: stack everything on the track and break your <br></div><div dir="ltr">project by an unintended mouse click."</div></blockquote><div dir="ltr"><br></div><div dir="ltr" data-setdir="false"><font size="3">Sounds like a good idea but I always wonder how hard it is to smoosh in these types of new ideas without breakage.</font><br></div><br></div>
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