polymonster

It’s an instagram style UI but for scrolling through record releases and snippets, worked on making it responsive as possible with low latency audio playback so you can browse a lot of stuff quickly.

Wrote about it on my blog: https://www.polymonster.co.uk/blog/diig

And GitHub repo: https://github.com/polymonster/diig

A music digging app for record collectors, with instagram style feed for listening to new vinyl snippets

Some of the landlords are just taking the piss, there are much better places for better value in decent areas just don’t get tricked by the snakey estate agents like foxtons and look around you can find reasonably good value..

As a graphics programmer it has been a good learning experience to implement my own maths library from scratch because linear algebra is such an integral part of my job, I also learned a lot about template programming to implement the types and also the vector swizzles.

A lot of other available maths libraries provide matrix, quaternion and vectors.. but not as many provide a vast collection of geometric intersection and overlap tests as my library does.

Additionally other maths libraries may be SIMD implementations, this library is all scalar and that is my intention all along. I favour the portability and simplicity of the scalar implementation.. I do like SIMD for sure but find that code can be optimised to much greater effect by writing entire algorithms in SIMD and not relying on the underlying vector / matrix SIMD implementation.. this is due to often a large number of horizontal operations may be necessary in certain algorithms.

This may be a bit dated now, but my experience with SIMD vector implementations on PowerPC were very inefficient because of general use games / graphics code often wants to access and set single vector elements and get them into floats and it would cause load hit stores and massive performance penalties, so then you require the scalar float in vec type and add all that additional complexity.

Anyway.. I hope people might find this useful if you are looking for a simple c++ maths library packed with great features for graphics and games :)

Jsn started as a python function which removed comments and fixed trailing commas. YAML does not come bundled with python and is an external dependency..

I suppose looking at it now jsn grew to a point where using something else in the first place would have been less work :)

Jsonnet looks pretty comprehensive and I did not know about it!

We started hand editing a lot and making more mistakes, but we have a lot of code generated json from build pipelines and use json with a number of different libraries in different tools already so didn’t really want to switch to yaml or toml.

Jsn is not meant to replace json, we are still using json a lot natively, we just can write config files more easily and jsn spits out fully compliant json for you, or you can use a python dict the same as json.

Jsn does not have a serializer, once it has been parsed it is json.

Has been a while since I directly used PSSL but remember it being very similar to HLSL so it should be quite straight forward..

Using c++ we have a quite minimal amount of platform specific code by making tight abstractions and trying to work on shared code as much as possible.

We use open source where possible to save time and repeated work. Using things like ImGui for Ui..

But all platform specific things we abstract ourselves (window creation, graphics apis, video decoders, input, timers, threads etc)

I have worked on proprietary game engines for over 10 years and while it may sound a lot of work to reinvent the wheel, when you know how and can do it well the end of cycle development can be a breeze when everything is bespoke to your needs...

alternatively I have worked on products using unity, qt and other frameworks and have spend months of optimisation grinding to ship..