Hi Experts,
The results of my rendered movie is bad, because of "flickering of edges / parallel lines".
The original movies are of UHD (Camcorder Sony FDR-AX53) and have to be rendered into FHD (1920x1080).
When I connect the camcorder direct to TV monitor via HDMI the quality is fine.
Which format or FX have I to use to get the best quality?
I burn my movies always to a Blu-Ray with menu.
Waiting for answer
Thank you in advance
Bernd
The problem with "flickering of edges / parallel lines". when rendering UHD to FHD for Blu-ray is not caused by the downscaling but by the fact that you convert progressive UHD to interlaced FHD. Just render to progressive FHD and you will see that the flickering is gone. Unfortunately progressive FHD is no Blu-ray standard. Only 24p is accepted for Blu-ray, your UHD is 25p.
To avoid the flickering for Blu-ray, you have to convert your 25p footage to 24p by timestretching which is not easy to do with Movie Studio, but possible. The final result is, when correctly done, that your movie plays with 24p instead of 25p (which is just a fraction slower) but the picture quality is much better than when converting 25p to 25i.
Thanks for Your answer.
Please describe in detail: how can I convert the footage from 25p to 24p.
In the meantime I render: Sony AVC to Blu-ray 1920x1080-24p. The result is that the "flickering" was gone. OK fine. But all movements like walking people or slowly camera panning become unsharp and catch shadows. Thus useless, unfortunately. That was the 1st trial with 16Mbit/s. 2nd trial was with 10 Mbit/s with better result. 3rd trial was with 8Mbit/s, but also here with small unsharp parts, shadows or double shapes. Until now the best result but no optimal solution.
Please help.
As said the flickering will be gone when you render UHDp25 to FHDp25 , but that will not fit on a Blu-ray. When you render instead to FHDp24, which fits well on a Blu-ray, you will get unsharpened images when there is movement, because Moviestudio is trying to resample 25p to 24p. Switching off is no solution because Moviestudio will just throw away every 25th frame, which gives a choppy effect.
The easiest way to convert 25p to real 24p is the following. Render your UHDp25 project to FHDp25. Put this FHDP25 render on the timeline of a new Moviestudio project and put the cursor on the last frame and note the frame number in the preview window. Now switch the project settings from 25p to 23,976p. Now move the cursor to the exact frame number on the timeline you noted before. Make a marker on that point. Now stretch the whole filmevent while holding the Ctrl key to this marker. To make sure that resampling is switched off, rightclick videoevent und choose switches/disable resample. Now render your 24p project with the appropriate Blu-ray template and burn your 24p Blu-ray.
In the meantime I made it and it is not difficult to do. The "flickering" was gone as you said.
Fine, but it seems to me that the sharpness of the movie was less. I will try again with another movie asap.
Do you have same experience?
Important is that you stretch exactly to the framenumber that you noticed, as described earlier and that resampling is switched off. When you still see a lost in sharpness between the FHDp25 and FHDp24, which I can hardly believe, you can always render your UHDproject first to UHDp25 (with Sony XAVC) and use that file to stretch and downscale to FHDp24.
Important is that you stretch exactly to the framenumber that you noticed, as described earlier and that resampling is switched off. When you still see a lost in sharpness between the FHDp25 and FHDp24, which I can hardly believe, you can always render your UHDproject first to UHDp25 (with Sony XAVC) and use that file to stretch and downscale to FHDp24.
Es ist 1 Jahr vergangen und ich komme zurück auf den Kommentar von 3POINT vom 31.01.2017 14:25. Das liegt auch daran, dass ich nur 1 bis 2 große Filme pro Jahr erstelle.
Nun habe ich wieder einen UHD Film, mit dessen Renderqualität auf FHD ich absolut nicht zufrieden bin. Der fertige Film wird von Blu-Ray via Beamer präsentiert. Seit Dez 2017 bin ich dran - mit mäßigem Erfolg, wie ruckeln, unscharf, flimmern, doppelte Konturen.
Der aktuelle Stand ist der, dass ich den Film gemäß Vorgaben von 3POINT vom 14.01.2017 stretche, also von p25 auf p23,976. Das habe ich sowohl mit UHD auf UHD ausgeführt, als auch mit UHD auf FHD.
Und jetzt kommt das Problem bei DVD Architect: Der vorliegende Film AVC 1920x1080-23,976p muss nochmals neu komprimiert werden, da das Programm 23,976 fps progressiv nicht unterstützt. Wenn man das ausführt, was einem sehr unlogisch vorkommt, da der Film genau in diesem Format vorliegt, dauert der Rendervorgang eine kleine Ewigkeit.
Was mache ich verkehrt?
Was habe ich nicht berücksichtigt?
Freue mich auf gute Antworten.