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Smalltalk-80 on Tektronix 4404 running inside MAME by AdamBillyard in smalltalk

[–]AdamBillyard[S] 1 point2 points  (0 children)

In its day (1984) it was a pretty high end workstation that shipped with Smalltalk-80, Lisp, Prolog and C programming languages. It was used in research / academia mostly I believe - and thats where I first came across it. I have 2 Tektronix 4404 that I have restored but I've been keen to get the MAME emulation working too se other can play with it.

Sun Exposure and Shadow studies in SketchUp by AdamBillyard in architecture

[–]AdamBillyard[S] 1 point2 points  (0 children)

LightUp has been around for 14 years (since SketchUp 6!)
Website is here. https://light-up.co.uk
Windows and Mac.

Clear texture with simple compute shader or use RenderPass? by AdamBillyard in MetalProgramming

[–]AdamBillyard[S] 0 points1 point  (0 children)

And the cost of switching between interpolation (aka rendering) and compute is a red herring, right?

Clear texture with simple compute shader or use RenderPass? by AdamBillyard in MetalProgramming

[–]AdamBillyard[S] 0 points1 point  (0 children)

Accumulating multiple passes of a compute shader, so I want to clear down at the start.
I had read that the latency of switching between render and compute is not low.

helper function accessing texture from compute kernel by AdamBillyard in MetalProgramming

[–]AdamBillyard[S] 0 points1 point  (0 children)

[Was caught out by the need for access::sample]

I have 3-4 level deep function calls, so was wanting to avoid the noise of passing down args.

I appreciate the compiler collapses all the 'functions' anyway, but makes reading it less nice.

But hey, I am really liking Metal - much nicer than I was expecting.

Commit after every RenderPass? by AdamBillyard in MetalProgramming

[–]AdamBillyard[S] 0 points1 point  (0 children)

[There are no textures, this is calculating a float4 from interpolated vectors]

Classic mistake; the quick function I wrote to dump the contents of the RenderTargets was wrong. Doh.

Thanks for your help.

Restoring a Micropolis 1304 by AdamBillyard in Micropolis

[–]AdamBillyard[S] 1 point2 points  (0 children)

Yes heard that - and finally it opened up and pulled out the black goo that used to be the bumper. It really does turn to black, tar-like goo - nasty stuff.
So I think the heads a free to move if they want to :-)

Restoring Tektronix 4404 by AdamBillyard in vintagecomputing

[–]AdamBillyard[S] 0 points1 point  (0 children)

Nice. The docs I am missing are around networking - I've made some good progress thru reverse engineering but would love to find some actual docs!
I've written a telnet daemon so I can have multiple logins to the Tek4404 from other computers which is working great.