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ohf's comments

ohf | 7 years ago | on: Writing a Portable CPU/GPU Ray Tracer in C#

> Yep. I bet this changes relatively soon, since you can sometimes use recursion in OpenCL & CUDA.

Am I correct in assuming you can only recurse when the recursion can be "unrolled" into a simple loop? In other words, no program flow structures.

ohf | 7 years ago | on: Show HN: The Curious Expedition – A Steam game in HTML5

High CPU overhead seems reasonable for HTML5-based games. Introducing a DOM can only make things slower relative to a leaner (native) engine.

For reference, I'm on a late-2015 laptop (XPS 13 9350) with integrated graphics, but the newer i3 gives me perfectly fine performance.

ohf | 8 years ago | on: Oculus Go

Wow, that webpage sucks. What are the specs?

ohf | 8 years ago | on: Java is Pass-by-Value

> Java calls references, works more like C/C++ pointer, rather than C++ reference

What makes you say this? You can't do pointer arithmetic on Java references, and the internal memory model is completely obscured. C++ and Java references look similar to and are accessed like variables. The major difference is that Java references can be reassigned, like a pointer, which is necessary in a language without true pointers.

ohf | 8 years ago | on: Java is Pass-by-Value

Java references are closer to C++ references than anything else. They're like pointers until you access/call them, at which point they're just objects. C++ references are identical, but the syntax is a bit more explicit.

It is a funny language feature to have when you think about it; it just so happens to be useful. References and pointers are distinct in languages that have both (C++), so not mixing the terms between languages is helpful. If Java programmers started referring to their variables as "pointers," because internally, that's more representative of what they are, I'd be a bit irked.

ohf | 8 years ago | on: Java is Pass-by-Value

I would actively avoid that, but only because it confuses me.

That syntax loosely implies that removing the second d assignment would allow me to create new-but-altered dogs with alterDog(Dog), which isn't the case. If I wanted to use assignments like that, I would try to go fully immutable with factory methods that help me make slightly different, new dogs on the fly, and return them.

ohf | 8 years ago | on: Spotify opens on NYSE, valuing company at almost $30B

I'd wager that Spotify is nearing the point at which - if not already there - record labels cannot afford to revoke their license. If they can get away with it, they'll try to push some buttons, but I doubt a full confrontation.

If there's any evidence against this, please let me know. I think it's interesting.

ohf | 8 years ago | on: Zuckerberg and Sandberg can't be trusted to handle data leak fallout

Why serious breaches of trust such as this don't immediately receive outside, completely foreign, third party (all of it!) investigation is beyond me. None of this should be news - it should be implied. For the same reasons PDs shouldn't "investigate" their own abuses.

ohf | 8 years ago | on: The problem with Facebook

Considering most search queries are simple and apolitical, I feel the argument "tailoring search results is less dangerous than curating a news feed" has some merit.

That aside, if you use Google as your main news outlet, all that goes out the window.

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