Add batch trajectory logic

This commit is contained in:
Eugene Fairley 2025-07-22 21:22:09 -07:00
parent ef382b319d
commit 877ebd9240
2 changed files with 154 additions and 120 deletions

View File

@ -1073,111 +1073,6 @@ class Lumina2(BaseModel):
out['c_crossattn'] = comfy.conds.CONDRegular(cross_attn)
return out
def ind_sel(target: torch.Tensor, ind: torch.Tensor, dim: int = 1):
"""Index selection utility function"""
assert (
len(ind.shape) > dim
), "Index must have the target dim, but get dim: %d, ind shape: %s" % (dim, str(ind.shape))
target = target.expand(
*tuple(
[ind.shape[k] if target.shape[k] == 1 else -1 for k in range(dim)]
+ [
-1,
]
* (len(target.shape) - dim)
)
)
ind_pad = ind
if len(target.shape) > dim + 1:
for _ in range(len(target.shape) - (dim + 1)):
ind_pad = ind_pad.unsqueeze(-1)
ind_pad = ind_pad.expand(*(-1,) * (dim + 1), *target.shape[(dim + 1) : :])
return torch.gather(target, dim=dim, index=ind_pad)
def merge_final(vert_attr: torch.Tensor, weight: torch.Tensor, vert_assign: torch.Tensor):
"""Merge vertex attributes with weights"""
target_dim = len(vert_assign.shape) - 1
if len(vert_attr.shape) == 2:
assert vert_attr.shape[0] > vert_assign.max()
new_shape = [1] * target_dim + list(vert_attr.shape)
tensor = vert_attr.reshape(new_shape)
sel_attr = ind_sel(tensor, vert_assign.type(torch.long), dim=target_dim)
else:
assert vert_attr.shape[1] > vert_assign.max()
new_shape = [vert_attr.shape[0]] + [1] * (target_dim - 1) + list(vert_attr.shape[1:])
tensor = vert_attr.reshape(new_shape)
sel_attr = ind_sel(tensor, vert_assign.type(torch.long), dim=target_dim)
final_attr = torch.sum(sel_attr * weight.unsqueeze(-1), dim=-2)
return final_attr
def patch_motion(
tracks: torch.FloatTensor, # (B, T, N, 4)
vid: torch.FloatTensor, # (C, T, H, W)
temperature: float = 220.0,
vae_divide: tuple = (4, 16),
topk: int = 2,
):
"""Apply motion patching based on tracks"""
_, T, H, W = vid.shape
N = tracks.shape[2]
_, tracks_xy, visible = torch.split(
tracks, [1, 2, 1], dim=-1
) # (B, T, N, 2) | (B, T, N, 1)
tracks_n = tracks_xy / torch.tensor([W / min(H, W), H / min(H, W)], device=tracks_xy.device)
tracks_n = tracks_n.clamp(-1, 1)
visible = visible.clamp(0, 1)
xx = torch.linspace(-W / min(H, W), W / min(H, W), W)
yy = torch.linspace(-H / min(H, W), H / min(H, W), H)
grid = torch.stack(torch.meshgrid(yy, xx, indexing="ij")[::-1], dim=-1).to(
tracks_xy.device
)
tracks_pad = tracks_xy[:, 1:]
visible_pad = visible[:, 1:]
visible_align = visible_pad.view(T - 1, 4, *visible_pad.shape[2:]).sum(1)
tracks_align = (tracks_pad * visible_pad).view(T - 1, 4, *tracks_pad.shape[2:]).sum(
1
) / (visible_align + 1e-5)
dist_ = (
(tracks_align[:, None, None] - grid[None, :, :, None]).pow(2).sum(-1)
) # T, H, W, N
weight = torch.exp(-dist_ * temperature) * visible_align.clamp(0, 1).view(
T - 1, 1, 1, N
)
vert_weight, vert_index = torch.topk(
weight, k=min(topk, weight.shape[-1]), dim=-1
)
grid_mode = "bilinear"
point_feature = torch.nn.functional.grid_sample(
vid[vae_divide[0]:].permute(1, 0, 2, 3)[:1],
tracks_n[:, :1].type(vid.dtype),
mode=grid_mode,
padding_mode="zeros",
align_corners=False,
)
point_feature = point_feature.squeeze(0).squeeze(1).permute(1, 0) # N, C=16
out_feature = merge_final(point_feature, vert_weight, vert_index).permute(3, 0, 1, 2) # T - 1, H, W, C => C, T - 1, H, W
out_weight = vert_weight.sum(-1) # T - 1, H, W
# out feature -> already soft weighted
mix_feature = out_feature + vid[vae_divide[0]:, 1:] * (1 - out_weight.clamp(0, 1))
out_feature_full = torch.cat([vid[vae_divide[0]:, :1], mix_feature], dim=1) # C, T, H, W
out_mask_full = torch.cat([torch.ones_like(out_weight[:1]), out_weight], dim=0) # T, H, W
return torch.cat([out_mask_full[None].expand(vae_divide[0], -1, -1, -1), out_feature_full], dim=0)
class WAN21(BaseModel):
def __init__(self, model_config, model_type=ModelType.FLOW, image_to_video=False, device=None):
super().__init__(model_config, model_type, device=device, unet_model=comfy.ldm.wan.model.WanModel)
@ -1222,14 +1117,7 @@ class WAN21(BaseModel):
mask = mask.repeat(1, 4, 1, 1, 1)
mask = utils.resize_to_batch_size(mask, noise.shape[0])
res = torch.cat((mask, image), dim=1)
tracks = kwargs.get("tracks", None)
if tracks is not None:
res = patch_motion(tracks.to(device), res[0], kwargs.get("ati_temperature", None), (4, 16), kwargs.get("ati_topk", None))[None]
return res
return torch.cat((mask, image), dim=1)
def extra_conds(self, **kwargs):
out = super().extra_conds(**kwargs)

View File

@ -491,6 +491,142 @@ def pad_pts(tr):
pts = pts[:FIXED_LENGTH]
return pts.reshape(FIXED_LENGTH, 1, 3)
def ind_sel(target: torch.Tensor, ind: torch.Tensor, dim: int = 1):
"""Index selection utility function"""
assert (
len(ind.shape) > dim
), "Index must have the target dim, but get dim: %d, ind shape: %s" % (dim, str(ind.shape))
target = target.expand(
*tuple(
[ind.shape[k] if target.shape[k] == 1 else -1 for k in range(dim)]
+ [
-1,
]
* (len(target.shape) - dim)
)
)
ind_pad = ind
if len(target.shape) > dim + 1:
for _ in range(len(target.shape) - (dim + 1)):
ind_pad = ind_pad.unsqueeze(-1)
ind_pad = ind_pad.expand(*(-1,) * (dim + 1), *target.shape[(dim + 1) : :])
return torch.gather(target, dim=dim, index=ind_pad)
def merge_final(vert_attr: torch.Tensor, weight: torch.Tensor, vert_assign: torch.Tensor):
"""Merge vertex attributes with weights"""
target_dim = len(vert_assign.shape) - 1
if len(vert_attr.shape) == 2:
assert vert_attr.shape[0] > vert_assign.max()
new_shape = [1] * target_dim + list(vert_attr.shape)
tensor = vert_attr.reshape(new_shape)
sel_attr = ind_sel(tensor, vert_assign.type(torch.long), dim=target_dim)
else:
assert vert_attr.shape[1] > vert_assign.max()
new_shape = [vert_attr.shape[0]] + [1] * (target_dim - 1) + list(vert_attr.shape[1:])
tensor = vert_attr.reshape(new_shape)
sel_attr = ind_sel(tensor, vert_assign.type(torch.long), dim=target_dim)
final_attr = torch.sum(sel_attr * weight.unsqueeze(-1), dim=-2)
return final_attr
def _patch_motion_single(
tracks: torch.FloatTensor, # (B, T, N, 4)
vid: torch.FloatTensor, # (C, T, H, W)
temperature: float,
vae_divide: tuple,
topk: int,
):
"""Apply motion patching based on tracks"""
_, T, H, W = vid.shape
N = tracks.shape[2]
_, tracks_xy, visible = torch.split(
tracks, [1, 2, 1], dim=-1
) # (B, T, N, 2) | (B, T, N, 1)
tracks_n = tracks_xy / torch.tensor([W / min(H, W), H / min(H, W)], device=tracks_xy.device)
tracks_n = tracks_n.clamp(-1, 1)
visible = visible.clamp(0, 1)
xx = torch.linspace(-W / min(H, W), W / min(H, W), W)
yy = torch.linspace(-H / min(H, W), H / min(H, W), H)
grid = torch.stack(torch.meshgrid(yy, xx, indexing="ij")[::-1], dim=-1).to(
tracks_xy.device
)
tracks_pad = tracks_xy[:, 1:]
visible_pad = visible[:, 1:]
visible_align = visible_pad.view(T - 1, 4, *visible_pad.shape[2:]).sum(1)
tracks_align = (tracks_pad * visible_pad).view(T - 1, 4, *tracks_pad.shape[2:]).sum(
1
) / (visible_align + 1e-5)
dist_ = (
(tracks_align[:, None, None] - grid[None, :, :, None]).pow(2).sum(-1)
) # T, H, W, N
weight = torch.exp(-dist_ * temperature) * visible_align.clamp(0, 1).view(
T - 1, 1, 1, N
)
vert_weight, vert_index = torch.topk(
weight, k=min(topk, weight.shape[-1]), dim=-1
)
grid_mode = "bilinear"
point_feature = torch.nn.functional.grid_sample(
vid[vae_divide[0]:].permute(1, 0, 2, 3)[:1],
tracks_n[:, :1].type(vid.dtype),
mode=grid_mode,
padding_mode="zeros",
align_corners=False,
)
point_feature = point_feature.squeeze(0).squeeze(1).permute(1, 0) # N, C=16
out_feature = merge_final(point_feature, vert_weight, vert_index).permute(3, 0, 1, 2) # T - 1, H, W, C => C, T - 1, H, W
out_weight = vert_weight.sum(-1) # T - 1, H, W
# out feature -> already soft weighted
mix_feature = out_feature + vid[vae_divide[0]:, 1:] * (1 - out_weight.clamp(0, 1))
out_feature_full = torch.cat([vid[vae_divide[0]:, :1], mix_feature], dim=1) # C, T, H, W
out_mask_full = torch.cat([torch.ones_like(out_weight[:1]), out_weight], dim=0) # T, H, W
return out_mask_full[None].expand(vae_divide[0], -1, -1, -1), out_feature_full
def patch_motion(
tracks: torch.FloatTensor, # (B, TB, T, N, 4)
vid: torch.FloatTensor, # (C, T, H, W)
temperature: float = 220.0,
vae_divide: tuple = (4, 16),
topk: int = 2,
):
B = len(tracks)
# Process each batch separately
out_masks = []
out_features = []
for b in range(B):
mask, feature = _patch_motion_single(
tracks[b], # (T, N, 4)
vid, # (C, T, H, W)
temperature,
vae_divide,
topk
)
out_masks.append(mask)
out_features.append(feature)
# Stack results: (B, C, T, H, W)
out_mask_full = torch.stack(out_masks, dim=0)
out_feature_full = torch.stack(out_features, dim=0)
return out_mask_full, out_feature_full
class WanTrackToVideo:
@classmethod
def INPUT_TYPES(s):
@ -529,14 +665,19 @@ class WanTrackToVideo:
latent = torch.zeros([batch_size, 16, ((length - 1) // 4) + 1, height // 8, width // 8],
device=comfy.model_management.intermediate_device())
# Convert tracks to tensor format
arrs = []
for i, track in enumerate(tracks_data):
pts = pad_pts(track)
arrs.append(pts)
if isinstance(tracks_data[0][0], dict):
tracks_data = [tracks_data]
tracks_np = np.stack(arrs, axis=0)
processed_tracks = process_tracks(tracks_np, (width, height), length - 1).unsqueeze(0)
processed_tracks = []
for batch in tracks_data:
arrs = []
for track in batch:
pts = pad_pts(track)
arrs.append(pts)
tracks_np = np.stack(arrs, axis=0)
processed_tracks.append(process_tracks(tracks_np, (width, height), length - 1).unsqueeze(0))
if start_image is not None:
start_image = comfy.utils.common_upscale(start_image[:length].movedim(-1, 1), width, height, "bilinear", "center").movedim(1, -1)
@ -570,8 +711,13 @@ class WanTrackToVideo:
res = res.permute(1,2,3,0)[:, :, :, :3] # T, H, W, C
y = vae.encode(res)
c = torch.cat((msk, y), dim=1)
res = patch_motion(
processed_tracks, c[0], temperature=temperature, topk=topk, vae_divide=(4, 16)
)
# Add motion features to conditioning
msk, y = res
msk = -msk + 1.0 # Invert mask to match expected format
positive = node_helpers.conditioning_set_values(positive,
{"tracks": processed_tracks,
"concat_mask": msk,