I’m porting a Flash application over to Max/Jitter. I’ve rebuilt most of the logic in Max, but I have one routine that runs a lot of trig in a for loop that seems to run significantly faster using JavaScript than the uzi object. Basically, it plots points in a wave and sends OpenGL commands to an outlet.

With the LCD object, I could spit out hundreds of messages per frame without a hitch. But now I’m using OpenGL in Jitter and have found that it doesn’t respond well to a ton of messages, but it has no performance issues receiving single messages with hundreds of commands.

That said, I’m building the command string no problem, but when Max receives it, there are quotes around the whole thing. If I remove the quotes with the RegExp object (regexp (") @substitute %0), all the commas are replaced with backslash comma.

Any tips on getting this command over to jit.gl.sketch? Is this something I should be trying in JS or Max?

Here’s my JavaScript:

function bang() {

// Start the command string
var strCommand = "reset, glcolor 1 1 1 1, glbegin line_strip, "

// Decimate the frequency to make the wave prettier
numPitch *= numFactor;

// Loops through width
for (var i = 0; i < numWaveLength; i++) {

// Adjust ramp to add curve
numAmp -= numRamp;

// Adjust Y
numYPosition = numAmp * Math.sin(((i / numWaveLength) * (Math.PI * numPitch)) + numPhase);

// Draw line where amp is over 0
if (numAmp > 0) strCommand += "glvertex " + String(i / numWaveLength) + " " + String((numYPosition + numYOffset) / (numYOffset * 2)) + ", ";

}

outlet(0, strCommand + "glend");

}