My garage floor isn’t level so I made this small adjustable table top for my sculpting table. Rolling ball sculptures need a level work area during construction if they are to work when they are finished. I used the base and the basic unadjustable table for years. This…
Continue readingI finished my initial SSE2 project. It worked out well but I was hoping that it would work out better than just “well.” The algorithm I needed to speed up is called the Smith-Waterman algorithm. In reality, Smith and Waterman modified a type of algorithm called a dynamic…
Continue readingI just finished this rolling ball sculpture. It’s about 18″ tall: Another larger view. Click on the image to see the larger version: lick this one to see a closeup of part of the sculpture:
Continue readingI don’t have time to do it now but I’m looking forward to writing up a description of the things I’m learning using the SSE2 instructions. One thing I see already is that making an 8 item pipeline and operating on 8 items in parallel only seems to…
Continue reading#define MYMAX( a, b, c ) ( c = ( a & ~( ( a – b ) >> 31 ) ) | ( b & ( ( a – b ) >> 31 ) ) ) An interesting thing that can be done is this: #define MYMAX(…
Continue readingI found a bug in IE 8 related to showing and hiding div elements. I have some simply JavaScript code that runs when a button the page it clicked. <input class=”optionsbutton” type=”button” name=”ButtonHide” value=”Show” OnClick=”showoptions( true )”/> The showoptions function is quite simple as are the functions it…
Continue readingUntil the train game code is working well enough to play an actual game, I’m tempted to do no 3D work. I’ll need an interim user interface and so far, that has not been a problem. It has not been a problem because there has been no real…
Continue readingI thought that maybe my train game should look a little better. I changed the timer callback to be fast enough that a 40 car train took 100% of one CPU to position and move. It looks nice and the rubber-banding when dragging the track laying took looks…
Continue readingFirst, I want to ignore a mouse button click when my window is in the background. I want the Window to become active and come to the front but I don’t want a mouse message about it. Microsoft does some really odd things. I found is that there…
Continue readingI was experimenting last week with handling the coupler distance between train cars and found something interesting. In the picture above, you can clearly see the issue related to how a train car sits on a curved piece of track. The issue is that the linear distance between…
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