Re: [XeTeX] Could Adobe Photoshop's "blending options" for text be supported in a future {Pdf|Xe}TeX variant

[Zdenek Wagner]

Hi all,

about a week ago I mentioned my article in Czech mentioning the rendering
modes. I showed how to do it via \special and \pdfliteral. Embossing may be
acheved by storing the text in an \hbox and \copy'ing it several times at
slightly shifted positions with different colours and redering modes. Petr
Olšák wrote another article (in Czech) about primitive graphics again via
\pdfliteral and \special. You can do quite a lot using these tricks and TeX
macros. Of course, I would not use it for complex graphics but simple
effects are easy to achieve and no further support in pdftex and xdvipdfmx
is needed.

Zdeněk Wagner
http://ttsm.icpf.cas.cz/team/wagner.shtml
http://icebearsoft.euweb.cz

2018-04-05 2:25 GMT+02:00 Ross Moore :

> Hi again Phil,
>
> On Apr 5, 2018, at 8:39 AM, Ross Moore  wrote:
>
>
>
>- https://www.dropbox.com/s/b7a1383rb1dx2vp/Ao%20dais.pdf?dl=0
>- https://www.dropbox.com/s/7s6s7n9w8popiyg/MENU%20001%
>20new%20ellipse.pdf?dl=0
>- https://www.dropbox.com/s/smmcjy9zuuxa1nu/MENU%20001%20%
>28metallic%20gold%20text%20demo%29.pdf?dl=0
>
> 
>
> I would be interested in others' reactions to this.
>
>
> These are using PDF’s concept of “Text Rendering” modes.
> In particular  7 Tr   meaning mode 7,
> which uses the outlines of characters to be the clipping path for an
> underlying graphic.
>
>
> I was able to extract the “underlying graphics” from the 1st of your PDFs.
> Here is the one for the 2nd line of text.
>
>
> You can see the need to have a clipping path, created from the text using
> the same font that was “blended” to make this image.
> The need for exact positioning can also be appreciated from the image.
>
>
> Below is the image for the gold text in the 3rd PDF.
> Again the need for clipping is apparent.
>
>
>
> Thus the letter shapes restrict what parts of the graphic come shining
> through.
>
> This is essentially already available with pdfTeX; viz.
>
>https://tex.stackexchange.com/questions/250156/problem-
> with-pdfliteral/250162#250162
>
>
> There is one part missing:  how to make the underlying graphic correctly?
> e.g., to have letters looking like they are embossed, or standing out in
> 3D, etc.
>
> You need to construct the desired view in an image, and then place the
> actual characters,
> with appropriate rendering mode, exactly over that image so that only the
> desired parts are shown.
> This requires external image-processing software, which is what you paid
> Adobe to do with Photoshop.
>
>
>
> Philip Taylor
>
>
> Hope this helps.
>
> Ross
>
>
> * Dr Ross Moore*
>
> *Mathematics Dept **|* 12 Wally’s Walk, 734
> Macquarie University, NSW 2109, Australia
>
> *T:* +61 2 9850 *8955  |  F:* +61 2 9850 8114 <%2B61%202%209850%209695>
> *M:*+61 407 288 255 <%2B61%20409%20125%20670>*  |  *E:
> ross.mo...@mq.edu.au 
>
> http://www.maths.mq.edu.au 
>
>
> 
>
>
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Re: [XeTeX] Could Adobe Photoshop's "blending options" for text be supported in a future {Pdf|Xe}TeX variant

[Ross Moore]

Hi Phil.

On Apr 5, 2018, at 4:38 AM, Philip Taylor (RHUoL) 
> wrote:


I have been playing with Adobe Photoshop's "blending options" for text 
recently, adding a gold or metallic texture to otherwise plain text.  The 
results are visually very striking, and I therefore began to wonder whether 
similar functionality might one day be added to Pdf/XeTeX, in the former case 
natively and in the latter case via \specials and an extended (x)dvipdfm(x) 
driver.

Three examples of the sorts of effect I have in mind can be seen at :

  *   https://www.dropbox.com/s/b7a1383rb1dx2vp/Ao%20dais.pdf?dl=0
  *   
https://www.dropbox.com/s/7s6s7n9w8popiyg/MENU%20001%20new%20ellipse.pdf?dl=0
  *   
https://www.dropbox.com/s/smmcjy9zuuxa1nu/MENU%20001%20%28metallic%20gold%20text%20demo%29.pdf?dl=0

I would be interested in others' reactions to this.

These are using PDF’s concept of “Text Rendering” modes.
In particular  7 Tr   meaning mode 7,
which uses the outlines of characters to be the clipping path for an underlying 
graphic.
Thus the letter shapes restrict what parts of the graphic come shining through.

This is essentially already available with pdfTeX; viz.

   
https://tex.stackexchange.com/questions/250156/problem-with-pdfliteral/250162#250162


There is one part missing:  how to make the underlying graphic correctly?
e.g., to have letters looking like they are embossed, or standing out in 3D, 
etc.

You need to construct the desired view in an image, and then place the actual 
characters,
with appropriate rendering mode, exactly over that image so that only the 
desired parts are shown.
This requires external image-processing software, which is what you paid Adobe 
to do with Photoshop.




Philip Taylor

Hope this helps.

Ross


Dr Ross Moore

Mathematics Dept | 12 Wally’s Walk, 734
Macquarie University, NSW 2109, Australia

T: +61 2 9850 8955  |  F: +61 2 9850 8114
M:+61 407 288 255  |  E: 
ross.mo...@mq.edu.au

http://www.maths.mq.edu.au


[cid:image001.png@01D030BE.D37A46F0]


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