attempt fix for #8

[soypat]

No description provided.

[soypat]

@joeblew999 and @lynaghk, could you test this branch and see if Mac issue is fixed?

[lynaghk]

On my M1 Macbook Air 14.7.5 (23H527)

10:14:13 $ go run ./examples/bolt
using CPU
instantiating evaluation SDF took 56.333µs
2025/08/21 10:14:15 objectsunsupported for visual outputs
exit status 1
10:14:16 $ go run ./examples/bolt --gpu
using GPU	ᵍᵒᵗᵗᵃ ᵍᵒ ᶠᵃˢᵗ
2025/08/21 10:14:57 VersionUnavailable: NSGL: The targeted version of macOS only supports forward-compatible core profile contexts for OpenGL 3.2 and above
exit status 1
10:16:18 $ git log -1
commit 8e6ccd6a88c1bbe1c8fa745fe94f2b9ae4c53912 (HEAD, origin/glfw-fix)
Author: soypat <graded.sp@gmail.com>
Date:   Wed Aug 20 19:52:31 2025 -0300

    remove prints

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[soypat]

Hmm I missed something it seems. Maybe try now?

[lynaghk]

Same output, unfortunately.

15:34:59 $ git log -1
commit 40413eaf62fd57ee4f0ace42f187c93820fcd754 (HEAD -> glfw-fix, origin/glfw-fix)
Author: soypat <graded.sp@gmail.com>
Date:   Thu Aug 21 09:34:01 2025 -0300

    use Core over Compat gl profile in Init1x1GLFW
15:35:00 $ git diff
15:35:03 $ go run ./examples/bolt
using CPU
instantiating evaluation SDF took 339.708µs
2025/08/21 15:35:08 objectsunsupported for visual outputs
exit status 1
15:35:08 $ go run ./examples/bolt --gpu
using GPU	ᵍᵒᵗᵗᵃ ᵍᵒ ᶠᵃˢᵗ
2025/08/21 15:35:10 glBindBuffersBase
exit status 1
15:35:10 $ 

[soypat]

Alright, fixed. You had run into a latent bug created during a refactor that happened a while ago (for CPU runs). Now it should (hopefully) work :)

[lynaghk]

Yeah seems to have worked on CPU (though no window pops up or anything, not sure if something is supposed to be visible). GPU mode still has issues, though:

15:55:21 $ go run ./examples/bolt
using CPU
 53.417µs instantiating evaluation SDF
111.833µs wrote bolt.glsl
   1.341s evaluated SDF 4069179 times and rendered 62168 triangles with 96.96 percent evaluations omitted
 91.494ms wrote bolt.stl
bolt example done
15:55:24 $ go run ./examples/bolt --gpu
using GPU       ᵍᵒᵗᵗᵃ ᵍᵒ ᶠᵃˢᵗ
2025/08/23 15:55:32 glBindBuffersBase
exit status 1

[soypat]

Odd, i inserted panics all over to catch where it fails. You ran with latest?

[lynaghk]

Yeah, this was on 7948221

[soypat]

I need testers for #11 as a potential fix for #8, replaces this PR ideally.

Pinging @dlsniper

[soypat]

This can't be fixed without adding an alternative method of calculating SDFs via GPU. For now I suggest mac users use non-GPU implementations. I'm open to trying WebGPU for future features. See reasoning here: #11 (comment)