Frames, the movie

Nice!

...Jim Thompson

-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at

| 1962 | I love to cook with wine Sometimes I even put it in the food

On a sunny day (Mon, 09 Mar 2009 15:13:15 -0700) it happened John Larkin wrote in :

Looks interesting, but want to share a clue as to what it is?

I just boogered a digital delay generator (it makes four programmable delay+width pulses after a trigger) to include "frames", namely a list of channel delay/width setings that can be stored in up to 8192 blocks in ram. After each trigger, the next frame is loaded. So pulse delays and widths can be swept, hopped, on/off'ed, whatever, on a per-shot basis. Cool for things like stroboscopic photography, radar target simulation, whatever.

What I really want to do is add some emotional content. The big yellow pulse could be a bully. It could keep slamming into the little blue pulse and knocking it to the right. Finally the blue guy (mad as hell) could wiggle around, swell up, get a running start, and crash back into the yellow one, crushing it down to zero width. Something like that.

This would be hard to program. I'd probably have to draw graphs of pulse delays and widths versus time, create 8192-line frames file with some Basic program, load it up and try it, and tweak.

John

On a sunny day (Mon, 09 Mar 2009 16:07:49 -0700) it happened John Larkin wrote in :

LOL, you can do better then that with blender:

Looks like fun. What's that cost?

John

It's free software (GPL).

I gather it was originally developed as a commercial product, but the rights were then bought up by an enthusiast(?) funded campaign and it was turned into a free software project.

I played with it once, hoping I could do 3D mechanical modelling with it. It's amazing software, but more suited for Shrek than engineering design unfortunately :)

--

John Devereux

On a sunny day (Mon, 09 Mar 2009 17:38:03 -0700) it happened John Larkin wrote in :

Blender is free, I was on of the first users.... But the learning curve is very very steep, you need some talent too. So in time it costs a lot... OTOH it can do amazing 3D animations, you can just set the motion curves, it will export .avi. I have used it to make leaders for VHS I produced.

It was originally an "in-house" tool originally developed for an animation studio, and subsequently made available as shareware. When the developer went broke, it was purchased for EUR100k raised from donations and released under the GPL.

Agreed; it's a "graphics" program, not a CAD program.

Silly me, I thought it was a new implementation of space invaders!

Working movie title: The Pulse Wars.

John

The digital delay generator that I designed in 1995, to drive an electron spin resonance spectrometer, offered similarly extravagant amounts of storage.

I'd have much preferred that it didn't, but the 100474 ECL SRAM that I'd used in 1988-91 to do the same job was no longer available. There were manufacturers who still claimed to make it, but when I went after their European agents to get quotes for price and delivery, every request fell into a black hole.

So I had to settle for 12nec CMOS SRAM, which meant that I had to parallel groups of four chips to be able to offer the four pulse edges every 26nsec that the customer needed, and ended up compelled to offer at least 128k of memory because the smallest 12nsec chips on offer were 32kx8.

Today Farnell still offers the 12nsec 32kx8 parts, but I'd be tempted by the 10nsec 512kx8 parts - they are more expensive, but $10 versus $3 isn't all that significant for this kind of gear.

Back in 1995, some of the bigger programmable logic chips offered useful amounts of fast internal SRAM, but they were forbiddingly expensive.

-- Bill Sloman, Nijmegen

-- Bill Sloman, Nijmegen

Mickey LIKES it! :-)

Ed

As expected.

John

On a sunny day (Mon, 09 Mar 2009 17:38:03 -0700) it happened John Larkin wrote in :

Interference: ftp://panteltje.com/pub/lf_interference.gif

Higher frequency: ftp://panteltje.com/pub/rf_interference.gif

For northern hemisphere: ftp://panteltje.com/pub/musical_gui.gif

How (Linux): convert -wave 1x100 q1.gif lf_interference.gif convert -wave 1x10 q1.gif rf_interference.gif

convert -wave 10x100 q1.gif q2.gif convert -rotate 44 q2.gif q3.gif

Imagemagick makes it easy.

I get this stupid error box stating i need a quicktime system extension version 5 or better. And it seems that that is not available. What gives, and how fix?

maybe by using this instead:-

So, how does one un-install a NetScrape plugin?

No idea, I thought you were asking how to view mpg files without using quicktime.

I am,but the darn plugin takes over.