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| import taichi as ti | |
| import taichi.math as tm | |
| import py5 | |
| #ti.init(arch=ti.gpu) | |
| ti.init() | |
| @ti.func | |
| def complex_sqr(z): # complex square of a 2D vector | |
| return tm.vec2(z[0] * z[0] - z[1] * z[1], 2 * z[0] * z[1]) | |
| @ti.kernel | |
| def paint(t: float): | |
| for i, j in pixels: # Parallelized over all pixels | |
| c = tm.vec2(-0.8, tm.cos(t) * 0.2) | |
| z = tm.vec2(i / n - 1, j / n - 0.5) * 2 | |
| iterations = 0 | |
| while z.norm() < 20 and iterations < 50: | |
| z = complex_sqr(z) + c | |
| iterations += 1 | |
| pixels[i, j] = 1 - iterations * 0.02 | |
| #gui = ti.GUI("Julia Set", res=(n * 2, n)) | |
| # i = 0 | |
| # while gui.running: | |
| # paint(i * 0.03) | |
| # gui.set_image(pixels) | |
| # gui.show() | |
| # i += 1 | |
| def setup(): | |
| global pixels, n | |
| py5.size(640, 320) | |
| n = 320 | |
| pixels = ti.field(dtype=float, shape=(n * 2, n)) | |
| def draw(): | |
| #paint(py5.frame_count * 0.03) | |
| py5.set_np_pixels(pixels.to_numpy()) | |
| py5.run_sketch(block=False) |
You are running this on linux?
I have heard of taichi but have not used it. It it incompatible with py5?
Hi! Yes, I'm on Linux... I'm not sure it is incompatible, my mental model of the whole thing is sketchy... my first intuitions (and attempts) are that it might require the main thread in a way incompatible to py5? but again, you are the expert :D
I tried using taichi a few times in the past and didn't get very far.
Usually the "main thread issue" is for MacOS. It could be taichi uses the GPU in a special way that requires it to be the context thread, much like how OpenGL works. You aren't using P2D or P3D here though. It could be confused though because calling taichi method sfrom inside draw like that means the executing thread originates with Java, not Python. If taichi is finicky about what threads it will run in, it might not be happy about that.
Update: In further attempts to use
py5.set_numpy_pixelswith the taichifield, the array dimensions where "wrong", I managed to swap width and height and use bands "L" just to see where it went (but then it went nowhere).