Theis J Posted July 17, 2010 Share Posted July 17, 2010 Hi guys, Once in a while, when I render more than 1 frame and export it to a video. Circles will appear in the background. But when I only render a single frame, the circle do not appear. What might be the reason for that? I have attached an image-example to show you. Thank's Theis Quote Link to comment Share on other sites More sharing options...
mightcouldb1 Posted July 17, 2010 Share Posted July 17, 2010 What format are you rendering to? It looks like you are getting compression of your color range(banding). When you render a single image (if you are using the default settings) the image will be 16 bits. If you are sending that to quicktime, you can lose a lot of that data because of the compression to 8 bit. What codec are you using? h.264? Quote Link to comment Share on other sites More sharing options...
Theis J Posted July 17, 2010 Author Share Posted July 17, 2010 What format are you rendering to? It looks like you are getting compression of your color range(banding). When you render a single image (if you are using the default settings) the image will be 16 bits. If you are sending that to quicktime, you can lose a lot of that data because of the compression to 8 bit. What codec are you using? h.264? Thank you! I rendered it to 640 * 480 16 bit and then compressed to "video". This time I did some changes with the lights and rendered a few frames to 640 * 480 32 bit and compressed it to "h.264". I think the results is a lot better, but I can still see the circles. Quote Link to comment Share on other sites More sharing options...
mightcouldb1 Posted July 17, 2010 Share Posted July 17, 2010 Thank you! I rendered it to 640 * 480 16 bit and then compressed to "video". This time I did some changes with the lights and rendered a few frames to 640 * 480 32 bit and compressed it to "h.264". I think the results is a lot better, but I can still see the circles. When you have a gradient like that, you tend to get some banding with h264 compression. That's kind of unavoidable. Quote Link to comment Share on other sites More sharing options...
Theis J Posted July 17, 2010 Author Share Posted July 17, 2010 When you have a gradient like that, you tend to get some banding with h264 compression. That's kind of unavoidable. Ok. Thank you very much for helping me. I really appreciate that! Quote Link to comment Share on other sites More sharing options...
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