5.5 KiB
5.5 KiB
Documentation
- Class name: InstanceDiffusionTrackingPrompt
- Category: instance/conditioning
- Output node: False
InstanceDiffusionTrackingPrompt节点旨在将基于文本的提示与实例跟踪信息相结合,以便为实例扩散模型生成条件输入。它提取并编码与特定实例或类别相关的提示,将这些提示与空间跟踪数据结合,并为实例扩散机制的进一步处理做好准备。
Input types
Required
- positive
- 'positive'参数代表正面实例的初始条件数据,作为应用基于文本条件的基础。
- Comfy dtype: CONDITIONING
- Python dtype: dict
- negative
- 与'positive'类似,'negative'参数保存负面实例的初始条件数据,这些数据将被基于文本的条件增强。
- Comfy dtype: CONDITIONING
- Python dtype: dict
- clip
- 'clip'参数是一个用于将文本提示编码为嵌入的模型,在解释文本信息方面起着至关重要的作用。
- Comfy dtype: CLIP
- Python dtype: object
- tracking
- 此参数包含实例的空间跟踪信息,对于将文本提示与其相应的空间位置对齐至关重要。
- Comfy dtype: TRACKING
- Python dtype: dict
- positionnet
- PositionNet是一个模型,与fusers结合使用,用于细化实例的空间信息以获得更好的条件设置。
- Comfy dtype: POSITIONNET
- Python dtype: object
- fusers
- Fusers是整合多个信息源(如嵌入和空间数据)的机制,用于增强条件设置过程。
- Comfy dtype: FUSERS
- Python dtype: object
- positive_text
- 一个多行字符串,包含与正面实例相关的文本提示,这些提示将被处理和编码。
- Comfy dtype: STRING
- Python dtype: str
- negative_text
- 一个多行字符串,包含与负面实例相关的文本提示,将以与positive_text类似的方式进行处理和编码。
- Comfy dtype: STRING
- Python dtype: str
Output types
- positive
- 输出是正面实例的条件数据,现在已经融合了基于文本的提示和空间跟踪信息,可以在实例扩散模型中进行进一步处理。
- Comfy dtype: CONDITIONING
- Python dtype: list
- negative
- 类似地,这个输出是负面实例的条件数据,也融合了基于文本的提示和空间跟踪信息。
- Comfy dtype: CONDITIONING
- Python dtype: list
Usage tips
- Infra type:
CPU - Common nodes: unknown
Source code
class InstanceDiffusionTrackingPromptNode:
@classmethod
def INPUT_TYPES(s):
return {"required": {"positive": ("CONDITIONING", ),
"negative": ("CONDITIONING", ),
"clip": ("CLIP", ),
"tracking": ("TRACKING", ),
"positionnet": ("POSITIONNET", ),
"fusers": ("FUSERS", ),
"positive_text": ("STRING", {"multiline": True}),
"negative_text": ("STRING", {"multiline": True}),
}}
RETURN_TYPES = ("CONDITIONING", "CONDITIONING")
RETURN_NAMES = ("positive", "negative")
FUNCTION = "append"
CATEGORY = "instance/conditioning"
def _get_position_conds(self, clip, tracking, text):
# Get prompts and their class id and trakcer id
prompt_pairs = extract_prompts(text)
# Go through prompt pairs, encode prompts, and join with positions from tracking
position_conds = []
for tracker_id, class_id, prompt in prompt_pairs:
_, cond_pooled = clip.encode_from_tokens(
clip.tokenize(prompt), return_pooled=True)
# A tracker_id of -1 means that it is prompting all instances of a single class
if tracker_id != -1:
position_cond = {'cond_pooled': cond_pooled, 'positions':
tracking[class_id][tracker_id]}
position_conds.append(position_cond)
else:
for tracker_id in tracking[class_id]:
position_cond = {'cond_pooled': cond_pooled,
'positions': tracking[class_id][tracker_id]}
position_conds.append(position_cond)
return position_conds
def _apply_position_conds(self, position_conds, conditioning, fusers, positionnet):
# Add prompts+embeddings to the input conditionings
cond_out = []
for t in conditioning:
n = [t[0], t[1].copy()]
cond = n[1]
prev = []
has_instance = 'instance_diffusion' in cond
instance_conditioning = conditioning['instance_diffusion'] if has_instance else InstanceConditioning(
fusers, positionnet)
cond['instance_diffusion'] = instance_conditioning
instance_conditioning.add_conds(position_conds)
cond['gligen'] = ('position', instance_conditioning, None)
cond_out.append(n)
return cond_out
def append(self, positive, negative, clip, tracking, fusers, positionnet, positive_text, negative_text, fusers_batch_size=None):
positive_positions = self._get_position_conds(
clip, tracking, positive_text)
positive = self._apply_position_conds(
positive_positions, positive, fusers, positionnet)
negative_positions = self._get_position_conds(
clip, tracking, negative_text)
negative = self._apply_position_conds(
negative_positions, negative, fusers, positionnet)
return (positive, negative)