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A comment on About Bokeh. Parent comment

Re:About Bokeh by linuxdude314 on Friday December 20, 2019 @03:53PM (#21847300)
There’s no, but there isn’t really a need. The R package mentioned in a comment in this thread achieves a similar effect using no additional data.

Ray tracing will suffice!

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Re:About Bokeh by BubRoss on Friday December 20, 2019 @04:48PM (#21847658)
It shows a hand made depth map. You can't just 'raytrace' a 2D image and magically add depth of field.
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