Issues

• Thank you: H3.c + Storyboard

  antirez/h3.c#71 · Filter by author crashtestoz opened on Sep 27, 2026
  2

• Rectangular mosaic texture in dense fur at 1344x768 is h3.c-specific (independent impl renders clean strands)

  antirez/h3.c#70 · Filter by author dominicletz opened on Sep 26, 2026
  1

• [Community] Wild H3C — the first ComfyUI custom node for h3-metal (on the official Registry)

  antirez/h3.c#69 · Filter by author skaiy opened on Sep 23, 2026

• [MPSNDArrayMatrixMultiplication encodeToCommandBuffer:] destination ... is too large for kernel on M3 Max 64 GB

  antirez/h3.c#67 · Filter by author rideapandafly opened on Sep 15, 2026
  2

• Build fails on macOS 15 SDK: MTLGPUFamilyMetal4 undeclared

  antirez/h3.c#66 · Filter by author rideapandafly opened on Sep 14, 2026

• [Community] h3.c-studio — a bilingual web GUI for h3-metal

  antirez/h3.c#65 · Filter by author skaiy opened on Sep 13, 2026
  6

• how to generate 2K videoes

  antirez/h3.c#54 · Filter by author ChristopherKai opened on Aug 30, 2026

• A potential nondeterministic issue

  antirez/h3.c#52 · Filter by author yfyang86 opened on Aug 27, 2026

• M4 Pro 24GB: fold Turbo LoRA (PR #14) benchmark — 124f is the sweet spot on both 480P and 768P

  antirez/h3.c#51 · Filter by author AideYu opened on Aug 25, 2026
  1

• PLEASE, do *NOT* add cuda support! ask author to fork the source, and make a new distribution, DON'T pollute this one, thanks!

  antirez/h3.c#50 · Filter by author buggz2k opened on Aug 22, 2026
  2

• what is the practical use for this? I don't see it...

  antirez/h3.c#49 · Filter by author buggz2k opened on Aug 22, 2026
  3

• Qwen text encoder: sequence exceeds Metal threadgroup memory with reference video + ref images (≥150 frames)

  antirez/h3.c#47 · Filter by author cuiyuxin-gif opened on Aug 22, 2026

• how to download the models in a batch file? where are the instructions?

  antirez/h3.c#46 · Filter by author buggz2k opened on Aug 21, 2026
  1

• CUDA backend for Linux/NVIDIA — interest in upstreaming?

  antirez/h3.c#42 · Filter by author matrixfede opened on Aug 20, 2026

• Feature request: 4bit and 8bit support

  antirez/h3.c#41 · Filter by author faifung01 opened on Aug 19, 2026
  1

• Minimax Music 3

  antirez/h3.c#38 · Filter by author benb0jangles opened on Aug 16, 2026
  2

• Feature request: LoRA support

  antirez/h3.c#37 · Filter by author dogjamboree opened on Aug 16, 2026
  1

• no work for ref-image

  antirez/h3.c#36 · Filter by author qinyanyu opened on Aug 16, 2026
  1

• Mac air M5 32GB My first AI video with h3.c — an astronaut on Mars!

  antirez/h3.c#30 · Filter by author z6qaz opened on Aug 14, 2026
  2

• M1 Max 64gb

  antirez/h3.c#29 · Filter by author benb0jangles opened on Aug 14, 2026
  8

• 256×256 halved spatial RoPE swaps prompt subjects on the optimized INT8 package (fixed by --use-reference-rope)

  antirez/h3.c#28 · Filter by author AlexanderIstomin opened on Aug 13, 2026

• Sparse Attention roadmap / MPS SolAttn implementation

  antirez/h3.c#27 · Filter by author yshenaw opened on Aug 13, 2026

• Is it possible to support the Windows OS?

  antirez/h3.c#26 · Filter by author xiaofeiyun123 opened on Aug 13, 2026

• Bug: Interactive session doesn't emit 'Done ->' line when stdout is a pipe (non-TTY)

  antirez/h3.c#25 · Filter by author Lumer332 opened on Aug 13, 2026

• M4 Pro 24GB verification: official sharded weights render cleanly; misaligned repacked weights produce garbage (confirms PR #14)

  antirez/h3.c#18 · Filter by author AideYu opened on Aug 12, 2026
  1