Is it common knowledge that Dala Prisma is an actual prism?
Adam Jagosz
Posts: 689
I noticed that with ClearType enabled, at certain zoom levels a wonderful rainbow can be observed:

I wonder if this was intentional.
https://commercialtype.com/catalog/dala_floda/dala_prisma

I wonder if this was intentional.
https://commercialtype.com/catalog/dala_floda/dala_prisma
1
Comments
-
It's a screen artefact, related to *Moiré patterns*. In this case, the distances between the thin lines, which are heavily antialiased because the lines are so thin and at a slight angle, interfere with the *coloring* of that same antialiasing.
That is: pixels to the left of a 'black' pixel are tinted slightly red, pixels to the right of a 'black' pixel are ever so slightly tinted blue. This makes it look as if the black pixel in the center smears out into the RGB pixel triples to its left and right, but only by one 1/3rd of its width, rather than an "entire gray pixel".
Fortunately, giving it a scientific explanation does not take away its incidental beauty.
2
Categories
- All Categories
- 46 Introductions
- 3.8K Typeface Design
- 476 Type Design Critiques
- 555 Type Design Software
- 1.1K Type Design Technique & Theory
- 640 Type Business
- 830 Font Technology
- 29 Punchcutting
- 507 Typography
- 120 Type Education
- 313 Type History
- 74 Type Resources
- 109 Lettering and Calligraphy
- 30 Lettering Critiques
- 79 Lettering Technique & Theory
- 529 Announcements
- 84 Events
- 110 Job Postings
- 165 Type Releases
- 169 Miscellaneous News
- 274 About TypeDrawers
- 54 TypeDrawers Announcements
- 118 Suggestions and Bug Reports