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When i add a colour grade effect to my footage it looks fine until i render.
Hi all Im hoping someone can help me out here. I seem to be having a massive problem with premiere CC. This is the second project in a row that this has happened to. I’ve done a colour grade using a mixture of magic bullet looks and Film convert pro. Now everything looks great just how i want it to, but the red line is above my footage. So i render this out so i can have an uninterrupted playback. Once the render has finished the video that is playing looks nothing like it did before i rendered. Its all blocky and looks like a badly compressed video.
But if i don’t render the video in the timeline and just export it it seems to look ok even with the colour grade effects.
Please help as im at a loss with this. Im still running premiere 7.1 as the 7.2 update had issues with my canon mxf files.Im told its fixed but i updated the other week only to find it hasn’t.
Anyhow this has only just started to happen and i don’t understand why. My machine is powerful the specs are
64Gb of Ram
3TB raid drive
Nvida GTX 680 card
and a hex core system.Does anyone know why this is happening? I should also point out that after i have rendered the video on the timeline and it looks bad, i remove the effect and the video removes the colour grade but it still looks bad.
Please someone help, is this down to my video previews or something
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11 Replies
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What are your render settings? Do you reuse preview render files? If so, is the sequence set to same codec settings as output?
– No Parking Production –
Adobe CC, 3 x MacPro, 3 x MbP, Ethernet File Server w. Areca ThunderRaid 8…. and FCPX on trial
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Your preview codec is set in the sequence settings. On many sequence settings, it defaults to an 8 bit codec (even when it may be the camera format) whereas the timeline is computing your changes in 32 bit float.
You can create a sequence setting that has a custom set preview codec that you specify…choosing a 10 bit codec will help your preview rendered results look better…but they will also take up more space, so it’s a matter of making the best compromise.
TimK,
Director, Consultant
Kolb Productions,Adobe Certified Instructor
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Hi thanks for the reply.
Just so I’m clear when I say render I mean render out the timeline for playback. The video preview format is I-frame only MPEG and the codec is MPEG I-frame. Having just looked at it now I’m unable to change these setting as they are greyed out.
I’m not 100% sure what you mean by ‘reuse preview render files’ could you explain? I’ve never come across that before.
The sequence I’m editing in is Canon XF MPEG2 720p. I’ve just outputted the video without rendering the time line first to MXF OP1a codec and it seems ok. But as I said if I render the timeline all the coloured footage after render looks bad. And if I render it out then the output file looks dreadful. The main goal for this video is to be uploaded to a website so I’d like the the video to look its best.
I hope this information helps. Thanks again for the reply.
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Thanks for the info, But i have to ask how do i do this? The video preview section in sequence settings is grayed off so i cant change anything.
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HI would this also solve the problem of the video looking bad when i render?
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you might need to create a new custom sequence as the others described
then select all in the sequence and copy / paste to a new one.If you are on the mac, I’d set the rendering format for Prores
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I use canon mpeg2 codec and MBL but I dont use Film convert pro.
I have no issue with rendering.
So try without the filmconvert pro.———————————————–
Adobe Certified Expert Premiere Pro CC
Adobe Community Professional -
Ok so i’ve never had to do this before but under the sequence settings tab i cant change the Preview File Format or codec as they are grayed out. But i have now ticked the boxes Maximum bit depth and Maximum render quality. Will this effect the render of a timeline for playback?
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[david hare] ” i cant change the Preview File Format or codec as they are grayed out”
you can change the grayed out area when you create a new custom sequence.
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I’ve just tried now with a 720p custom sequence. It’s not allowing me to change the preview video file or codec as they are grayed out. If I do a 1080 sequence I can change it. This is the first time I’ve had to look at preview files etc as this problem has only just started to happen. It only seems to happen on video that I have added an effect or colour graded.
What I have been able to do is select a Maximum bit rate and render at maximum settings in the sequence settings. Not sure if these will work or not.
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