penguin42 @penguin42@mastodon.org.uk

I think I've got a Vulkan[o] swapchain ona gkt-rs window 😀; I think....now just to wire it up to use it.

The shape of curved cracks on Europa; fascinating (and he got support from NASA to make it) - very nice:
https://www.youtube.com/watch?v=j3LXPmiEB-w

The smell from the fires on saddleworth moor is noticeable here, even though we're about 15 miles away

Coming to you from lineageos 15.1 on find7, just updated; had to update recovery for it to take it, but otherwise fine.

A nice walk along a canal followed by a box of chocolate ice cream; it's not my fault I can buy 3 pack boxes for the same price as a single.

Hmm; I might have a vulkan(o) swapchain::surface from my gtk-rs window - not sure but it's not crashed yet; still got to wire up a swapchain. I did get a "'function pointer `DestroySurfaceKHR` not loaded" when trying to destroy it (accidentally) - but hmm not sure where that's from.

At the point in using a comms library of figuring out which direction 'in' is

The problem with uhd monitors is they get uhd gunge stuck on them

#rust's 'use' syntax can make things confusing; I was following #gtk-rs's code and got confused by:
let ret = from_glib_none(ffi::gdk_window_get_device_position(....))

so I need the ffi crate? No! Because there's a use which renames:
extern crate gdk_sys as ffi;
🔨

All 3 of the #Manchester maplin shops are now shut, a shame, but it can never be said they had good prices or stock levels. I do wonder what happened to the 128MB dimm one of them still had as of a few weeks back

Bleh! Hayfever

My vulkan(o) mandbulb is getting better; sped it up, cleaned a lot of the nasty bits; nastiest bit left is the glue to gtk-rs; I'm just using a compute shader to generate an image as bytes; it should be possible to get vulkano to render directly - but it needs at least some glue to wire up display surfaces; but vulkano only seems to have that for the winit library. Hmm.

if ev is a vec3 then length(ev) and ev.length() are very different in GLSL; I think ev.length() is the length of the vector (ie number of elements, 3) and length(ev) is the geometric length of the vector. Only took a couple of hours, sigh.

TIL: glsl silently ignores 'lowp' size directives in array declarations in buffers (thanks to 'derhass' in ##OpenGL for letting me in on the secret). I see glslandvalidator does change a decoration on the parameter, but that seems to be as far as it goes. Anyway, I think I've now got my mandelbulb being calculated in Vulkan; now can I display it.

Heck, I think I may have managed to execute a vulkan compute shader with vulkano; not actually managed to extract the result yet to know, but it's taking vaguely the right amount of time.

This is somewhere between genius and madness: https://www.emojicode.org/ - the docs are great 'A true value is created using 👍 and a false value is created using 👎' or 'The 🍋 statement is only executed if the preceding 🍊 expression and any preceding 🍋 expressions evaluated to 👎, and the current 🍋 expression evaluated to 👍.'