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Some cast/dtype fixes for the birefnet and dino3 models. (#14217)

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comfyanonymous 2026-06-01 14:35:26 -07:00 committed by GitHub
parent a88e02b185
commit e785f0d212
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3 changed files with 2 additions and 9 deletions
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2
comfy/background_removal/birefnet.py
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@ -105,7 +105,7 @@ class WindowAttention(nn.Module):
relative_position_bias = self.relative_position_bias_table[self.relative_position_index.long().view(-1)].view(
self.window_size[0] * self.window_size[1], self.window_size[0] * self.window_size[1], -1) # Wh*Ww,Wh*Ww,nH
relative_position_bias = relative_position_bias.permute(2, 0, 1).contiguous() # nH, Wh*Ww, Wh*Ww
relative_position_bias = comfy.ops.cast_to_input(relative_position_bias.permute(2, 0, 1).contiguous(), attn) # nH, Wh*Ww, Wh*Ww
attn = attn + relative_position_bias.unsqueeze(0)
if mask is not None:

5
comfy/clip_vision.py
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@ -2,7 +2,6 @@ from .utils import load_torch_file, transformers_convert, state_dict_prefix_repl
import os
import json
import logging
import torch
import comfy.ops
import comfy.model_patcher
@ -50,10 +49,6 @@ class ClipVisionModel():
self.load_device = comfy.model_management.text_encoder_device()
offload_device = comfy.model_management.text_encoder_offload_device()
self.dtype = comfy.model_management.text_encoder_dtype(self.load_device)
if self.model_type == "dinov3" and self.dtype == torch.float16:
# DINOv3's activations borderline fits fp16, preferring bf16 if available for better stability #TODO: further fp16 tests in practice
if comfy.model_management.should_use_bf16(self.load_device, prioritize_performance=True):
self.dtype = torch.bfloat16
self.model = model_class(config, self.dtype, offload_device, comfy.ops.manual_cast)
self.model.eval()

4
comfy/image_encoders/dino3.py
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@ -166,9 +166,8 @@ class DINOv3ViTEmbeddings(nn.Module):
def forward(self, pixel_values, bool_masked_pos=None):
batch_size = pixel_values.shape[0]
target_dtype = self.patch_embeddings.weight.dtype
patch_embeddings = self.patch_embeddings(pixel_values.to(dtype=target_dtype))
patch_embeddings = self.patch_embeddings(pixel_values)
patch_embeddings = patch_embeddings.flatten(2).transpose(1, 2)
if bool_masked_pos is not None:
@ -244,7 +243,6 @@ class DINOv3ViTModel(nn.Module):
return self.embeddings.patch_embeddings
def forward(self, pixel_values, bool_masked_pos=None, **kwargs):
pixel_values = pixel_values.to(self.embeddings.patch_embeddings.weight.dtype)
hidden_states = self.embeddings(pixel_values, bool_masked_pos=bool_masked_pos)
position_embeddings = self.rope_embeddings(pixel_values)