hi all, i’m returning to Processing after a few years absence, using 4.2 IDE. i need to draw a million rectangles in 3d space, each with a new position every frame (think floating pixels) but frameRate on my mac is slowing to a crawl (< 2 fps) above about 20000. i’m using P3D, and i’ve tried using …

Give this code a try to see if it even runs on MacOS. And then to see how fast it is. import java.nio.ByteBuffer; import java.nio.ByteOrder; import java.nio.FloatBuffer; import java.nio.IntBuffer; import com.jogamp.opengl.*; int N = 1000000; PVector[] pos; PVector[] vel; void setup() { size…

Hello, A related discussion: [image] P3D performance with 62500 boxes Coding Questions I have a program that I wrote a long time ago using the GLGraphics library and that I’m trying to port into Processing 3.0. It is a program that has 62500 boxes independently moving all…

You can definitely do this using OpenGL calls if your Mac supports it. Whether they are deprecated or not, the OpenGL calls still work great from Processing, at least until some future MacOS update removes OpenGL entirely. On my 7+ year old Linux machine with a mid-range nVidia card from that time,…

thanks for that, i had tried searching but hadn’t come across that thread, much appreciated. yes lots of useful info here, tho i can’t tell if the translate bug mentioned got fixed.

@scudly such an elegant solution, thanks, works great! i’m only getting 10fps with 1M but that’s much much closer to what i’m after and i am, after all, still on a very old mac. much appreciated!

[edit: I had a question about how to insert color in drawPoints so that pixel colors could be determined arbitrarily but have now figured it out, solution pasted below] import java.nio.ByteBuffer; import java.nio.ByteOrder; import java.nio.FloatBuffer; import java.nio.IntBuffer; import com.jogamp.…

Strategy for drawing a million objects/rectangles?

Processing Coding Questions

glv July 14, 2023, 5:17pm 2

Hello,

A related discussion:

May be something of interest in there…

:)

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Strategy for drawing a million objects/rectangles?

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