<![CDATA[Increasing speed issue]]>Today is proving to be strange Isadora day. I have a scene where an envelope generator increases the speed of a movie from 1.3 to 1.5. When it does this the video really chugs, but the FPS says 30. If I run the movie at 1.5 speed, without ramping it up through the envelope generator,  it runs perfect.

Any thoughts?
Jamie
]]>https://community.troikatronix.com/topic/3071/increasing-speed-issueRSS for NodeTue, 10 Mar 2026 10:36:52 GMTWed, 11 Jan 2017 00:18:54 GMT60<![CDATA[Reply to Increasing speed issue on Wed, 11 Jan 2017 20:21:43 GMT]]>The video codec may have a big impact. H264 for example won't like speed changes. Prores or hap are probably best. Also, adding a MultiBlocker before the speed input might help. Start with a time of 1/30 And try 1/15 These should allow a value per frame or per 2 frames.. not sure what will perform best, but these are my starting points for testing.

]]>https://community.troikatronix.com/post/22537https://community.troikatronix.com/post/22537Wed, 11 Jan 2017 20:21:43 GMT<![CDATA[Reply to Increasing speed issue on Wed, 11 Jan 2017 20:03:08 GMT]]>Is there anything I'm doing wrong with compression for this particular issue?

]]>https://community.troikatronix.com/post/22535https://community.troikatronix.com/post/22535Wed, 11 Jan 2017 20:03:08 GMT<![CDATA[Reply to Increasing speed issue on Wed, 11 Jan 2017 16:03:44 GMT]]>Skulpture. It's taking 10 seconds. We have 1024 x 768 files with Photo jpeg compression. Thank you for your help...again.  Jamie

]]>https://community.troikatronix.com/post/22532https://community.troikatronix.com/post/22532Wed, 11 Jan 2017 16:03:44 GMT<![CDATA[Reply to Increasing speed issue on Wed, 11 Jan 2017 07:51:57 GMT]]>I think Fred is right.

How long does it take to get from 1.3 to 1.5 also?
Codec specification is also a critical choice here too.
]]>https://community.troikatronix.com/post/22515https://community.troikatronix.com/post/22515Wed, 11 Jan 2017 07:51:57 GMT<![CDATA[Reply to Increasing speed issue on Wed, 11 Jan 2017 06:44:41 GMT]]>Maybe too many vales, stepping this value every few frames will not give stepping artefacts visually but will give less vales and handling to the system.

]]>https://community.troikatronix.com/post/22513https://community.troikatronix.com/post/22513Wed, 11 Jan 2017 06:44:41 GMT