I think my mistake from the very beginning was to frame „reflection“ as happening around a vector instead of around a plane. I did this because I thought of it to be easier to vidualize. The I carried it on into 3d but as you say it does not generalize.

Had I started with doing reflections across planes I think it might generalize correctly across dimensions.

I have to admit this kind of mistake might completely undermine the correctness and usefulness of the visualization. I will rework this. Glad you noticed it.

Accepting reflection as the most elementary geometric operation was an eye opening moment for me. I think some of you might enjoy the interactive visuals.

Comments URL: https://news.ycombinator.com/item?id=49391168

Points: 61

# Comments: 16

Comments URL: https://news.ycombinator.com/item?id=48932962

Points: 3

# Comments: 0

1. the functional/immutable nature of Elixir makes read and writes much more explicit and there is no need to magically track deep mutations of nested objects to translate them back into UPDATE/INSERT queries

2. Elixirs support for lisp-like macros allows for an ergonomic embedded query languages that is syntax and schema checked, mirrors raw SQL really well and, frees you from string-oriented query building

3. the query builder DSL addresses one of the main weaknesses of SQL query statements not being composable

4. The automatic conversion between JOINed tables (on the DB side) and nested structs (on the Elixir side) is done on the right abstraction level to work reliable and and being explicit enough to generate predictable queries.

So the ONLY thing the license asked for is to be named and that was supposedly violated. So a multi million dollar company can just violate a generous license and then after a fact cling to this exact license while arguing to not pay a single cent more than the license asked for. Alright...

  SELECT project(...) as x, project(...) as y 
  FROM model, vertex, camera, transform 
  WHERE clockwise AND clipped IN BETWEEN -1 AND 1

All the infrastructure that would support deaf people (like additional signal lights, vibration signals, subtitles...) are also very helpful for everybody else in specific situations.

Everybody is handicapped part of the time

I just wanted to point out that there is a path from "would like to prevent" to "stop everybody who does not match the profile from living".

The other responses in this thread already show in which bad light people look at deaf people. Maybe start talking to some of them.

In a some way this is already happening (eg Judges forcing cochlea implants on babies while denying the parents support in learning/teaching sign language to the child)

Many people see this as an attack on the deaf community and their culture - and I have to agree.

  write.it.your.self
  think.4.your.self
  written.by.my.self

[1]: https://static.laszlokorte.de/recursion-schemes/ [2]: https://github.com/laszlokorte/elixir-recursion-livebook/blo...

The Escher Print Gallery requires even larger scales as it uses a zoom factor of 256 across the image (vs 16 for my images)

Others have solved this by either vectorizing the Print Gallery or even rebuilding the scene as 3D signed distance field that can be sampled via ray marching.[1] The later yields the best result but I did not want to copy it.

[1]: https://www.shadertoy.com/view/Mdf3zM