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fixImportError: cannot import name 'apply_rotary_emb' from 'comfy.ldm.lightricks.model' #284

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fixImportError: cannot import name 'apply_rotary_emb' from 'comfy.ldm.lightricks.model' #284

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beff8a3
Update requirements.txt
wzgrx Oct 25, 2025
b4f8a0f
Update ltx_model.py
wzgrx Nov 11, 2025
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6 changes: 3 additions & 3 deletions requirements.txt
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
diffusers
einops
huggingface_hub>=0.25.2
ninja~=1.11.1.4
transformers[timm]>=4.45.0
huggingface_hub
ninja
transformers[timm]
6 changes: 3 additions & 3 deletions tricks/modules/ltx_model.py
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Expand Up @@ -6,7 +6,7 @@
from comfy.ldm.lightricks.model import (
BasicTransformerBlock,
LTXVModel,
apply_rotary_emb,
apply_rope1,
precompute_freqs_cis,
)
from comfy.ldm.lightricks.symmetric_patchifier import latent_to_pixel_coords
Expand Down Expand Up @@ -57,8 +57,8 @@ def forward(self, x, context=None, mask=None, pe=None, transformer_options={}):
k = self.k_norm(k)

if pe is not None:
q = apply_rotary_emb(q, pe)
k = apply_rotary_emb(k, pe)
q = apply_rope1(q.unsqueeze(1), pe).squeeze(1)
k = apply_rope1(k.unsqueeze(1), pe).squeeze(1)

feta_score = None
if (
Expand Down