Agreed. these are impressive!

I was curious about the defensive disclosure. Are you intending to patent this 
work or simply preventing a non-open source implementation from claiming patent 
infringements? I’d be curious to try and recreate some of these results :)

shawn

On Sep 24, 2014, at 5:24 PM, Dan Amelang <daniel.amel...@gmail.com> wrote:

> Hi Juan,
> 
> Yes, that is some of the best TTF non-hinted rendering I've seen. Nice work!
> 
> And, yes, it does look like the bug is gone, thanks!
> 
> It will be interesting to look through a simplified, stand-alone(ish) version 
> of the code to fully grasp the detail of your approach. Again, no rush, 
> though.
> 
> Dan
> 
> On Tue, Sep 23, 2014 at 6:50 PM, J. Vuletich (mail lists) 
> <juanli...@jvuletich.org> wrote:
> Hi Dan,
> 
> Quoting Dan Amelang <daniel.amel...@gmail.com>:
> 
>> Hi Juan,
>>  
>> Thanks for the screenshots, that helps a lot! Now, it would be ideal to have 
>> a visual like this to for the comparison: 
>> http://typekit.files.wordpress.com/2013/05/jensonw-900.png. But, I know that 
>> you've got limited time to work on this, and such a thing wouldn't be very 
>> high priority. Maybe down the road.
> 
> Please take a look at 
> https://dl.dropboxusercontent.com/u/13285702/Morphic3-TimesNewRomanSample.png
> I used Times New Roman for the sample. It is similar but not identical to the 
> font in the Adobe demo image. I did it by converting the text to SVG in 
> Inkscape, then using Morphic 3 to draw the svg file.
> 
> There is no hinting at all here! Just better rasterization. The shape and 
> weight is truer and more uniform (especially at smaller sizes), most glyphs 
> look sharper. Starting from the third line, the quality is consistently 
> better.
> 
> 
>> Also, comparing your renderer+stroke font to the recently open sourced Adobe 
>> font rasterizer would be interesting, too 
>> (http://blog.typekit.com/2013/05/01/adobe-contributes-cff-rasterizer-to-freetype/).
>>  As far as I can tell, Adobe's rasterizer is pretty much the the 
>> state-of-the-art rasterizer for outline font rasterization. If you're making 
>> the case that outline fonts are intrinsically unable to match the quality of 
>> your stroke font, this comparison would be a convincing way to do so.
> 
> 
> I think the real contribution of Morphic 3 here is better rasterization, that 
> doesn't need hinting to give very crisp and detailed results.
> 
> 
>> Going back to the topic of Morphic 3 rendering TrueType fonts,  I'm 
>> attaching a few unfiltered zooms from your M3-TTF.png (your more recent 
>> M3-TTF-5.png looks the same in these areas). Notice the saturated colors in 
>> the middle of the black text. You mentioned that you have color fringing 
>> problems with <9 point sizes, but this font is about 12pt and the problem 
>> doesn't look like color fringing (i.e., the coloring isn't light nor just on 
>> the fringes, see 
>> http://typekit.files.wordpress.com/2010/10/gdi-cleartype.png for what I 
>> understand color fringing to look like). Maybe something else is going on 
>> here?
>>  
>> ... snip ...
>>  
>> Dan
> 
> Yes. There was a bug there. It only happened for curve segments shorter than 
> one pixel, affecting only very small point sizes. Thanks for pointing it out! 
> The sample I prepared today clearly shows that the bug was fixed.
> 
> Cheers,
> Juan Vuletich
> 
> 
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