It is a toggle now, not a value in the list: SLA takes H3's packed self-attention
and the chosen backend takes the text refiner, masked calls and dense-last steps.
When SLA does not take, the chosen backend is still installed on its own.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Picked in the diffusion model loader's attention list, not wired as a node.
Six settings folded under Advanced; offered only where CUDA and Triton run it
and ignored on any model that is not H3. Kernel vendored from LightX2V.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Quantization + a per-model attention backend read from ComfyUI's own registry, so only
installed ones are offered. The LoRA loader now takes its own list and scores wrapper
prefixes against the model's key map, instead of applying a diffusers LoRA as a silent no-op.
