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xiaowan3 / xy-vsfilter

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XySubfilter [32bit] (3.1.0.705) Subpixel position 8x8 (bilinear) not working properly #192

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?

Using MPC-HC [32bit] (1.7.7.157) + LAV Filters [32bit] (0.63-29-gdf6aef6) + 
madVR (0.87.11) + XySubfilter [32bit] (3.1.0.705) + ReClock (1.8.8.4) + Audio 
Switcher

What is the expected output? What do you see instead?

First line reverted back to using the default Subpixel position while the 
second line has the 8x8 (bilinear) effect.

http://puu.sh/dLlJ7/1507554640.png
http://puu.sh/dLqly/d0ef000ece.png

What version of the product are you using? On what operating system?

3.1.0.705 Windows 7 (64bit) Home Premium)

Please provide related subtitle script (if any). And the less characters
the script is, the less effort I have to make to fix the issue, so if you
could make the script as simple as possible, that would be appreciated.

Please provide any additional information below.

Original issue reported on code.google.com by chronosx...@gmail.com on 28 Dec 2014 at 2:38

GoogleCodeExporter commented 9 years ago 
Subpixel positioning only affects pixels which are not already aligned to whole 
pixels. Since 8x8 (bilinear) utilizes a bilinear shift for subpixel 
postiioning, lines which require more of a sub-pixel shift will end up blurrier 
like your example.

While the "8x8 (bilinear)" option works well for positioned typsetting, on 
multi-line dialog lines things like your example can sometimes occur and be 
noticeable. This is the reason that option is not the default, and overall not 
particularly recommended.

Original comment by cyber.sp...@gmail.com on 28 Dec 2014 at 10:36