You need to bypass the QC scaling: On the Billboard select Native Core
Image Rendering, then it will respect the image(Filtering) input which
is revealed when you enable Show Advanced Input Sampler Options on any
CI filter.
I'm not saying it's great, just that it is possible ;)
On Mar 21, 2008, at 1:11 PM, Christopher Wright wrote:
I am attempting to play back a small video and use nearest neighbor
interpolation to acheive that lovely pixelated look.
Quite fitting, given the material ;) Should warn people before such
dangerous trips down memory lane :)
How does one then apply a nearest neighbor interpolation? Im
assuming I have to build a simple CIKernel to do this with fract
and samplerCoords or somesuch?
Your problem doesn't like in the filter, but in the stupid
billboard: mouse-over the image output from the filter, and you'll
see that the resolution is really low (36x45) -- the billboard
_always_ does linear interpolation to scale the image, regardless of
how you set the CI filter stuff.
What you'll want to do is this:
Find the image resizer, and upscale the movie output by some big
value (x8 or x16 is good, but feel free to experiment).
Then, change your filter to essentially be a mosaic function, like
this:
kernel vec4 multiplyEffect(sampler image)
{
return sample(image,//samplerCoord(image));
vec2(
floor(samplerCoord(image).x/8.)*8.,
floor(samplerCoord(image).y/8.)*8.)
);
}
You can change the 8.'s to be whatever you decide to scale up by.
This'll give you some 1980's pixelated goodness :)
--
[ christopher wright ]
[EMAIL PROTECTED]
http://kineme.net/
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