Handling interlaced images in FCP with hardware render
Handling interlaced images in FCP with hardware render
- Subject: Handling interlaced images in FCP with hardware render
- From: David Yamnitsky <email@hidden>
- Date: Wed, 9 Jul 2008 12:33:56 -0400
Hi all,
I'm making an FxPlug plug-in which builds an FBO and draws the output
there before drawing onscreen. I specify the FBO's dimensions using
the width and height of the output image in the renderOutput: method.
Everything works as expected in Motion, but in FCP the frame is
rendered twice, once for the lower field and once for the upper
field. Because of this the output dimensions don't match the
dimensions of the input image, and the drawn output is skewed. My
quick-fix was just to multiply the buffer's height by two when
performing a fielded render, but is this the proper way to handle
this? I was under the impression that fields only apply to bitmaps,
not textures. This isn't my area of expertise so any advice would be
greatly appreciated.
Thanks!
David
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