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Artiprocher
2025-11-30 19:04:21 +08:00
parent b106458eac
commit 20cf2317e0
5 changed files with 12 additions and 11 deletions
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diffsynth/diffusion/loss.py
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@@ -3,8 +3,8 @@ import torch
def FlowMatchSFTLoss(pipe: BasePipeline, **inputs):
max_timestep_boundary = int(inputs.get("max_timestep_boundary", 1) * pipe.scheduler.num_train_timesteps)
min_timestep_boundary = int(inputs.get("min_timestep_boundary", 0) * pipe.scheduler.num_train_timesteps)
max_timestep_boundary = int(inputs.get("max_timestep_boundary", 1) * len(pipe.scheduler.timesteps))
min_timestep_boundary = int(inputs.get("min_timestep_boundary", 0) * len(pipe.scheduler.timesteps))
timestep_id = torch.randint(min_timestep_boundary, max_timestep_boundary, (1,))
timestep = pipe.scheduler.timesteps[timestep_id].to(dtype=pipe.torch_dtype, device=pipe.device)