Support multiple text encoder configurations on SD3.

comfy/sd.py

@@ -482,7 +482,7 @@ def load_checkpoint_guess_config(ckpt_path, output_vae=True, output_clip=True, o
         vae = VAE(sd=vae_sd)
 
     if output_clip:
-        clip_target = model_config.clip_target()
+        clip_target = model_config.clip_target(state_dict=sd)
         if clip_target is not None:
             clip_sd = model_config.process_clip_state_dict(sd)
             if len(clip_sd) > 0:

comfy/sd3_clip.py

@@ -5,6 +5,7 @@ import comfy.t5
 import torch
 import os
 import comfy.model_management
+import logging
 
 class T5XXLModel(sd1_clip.SDClipModel):
     def __init__(self, device="cpu", layer="last", layer_idx=None, dtype=None):
@@ -43,20 +44,39 @@ class SD3Tokenizer:
         return self.clip_g.untokenize(token_weight_pair)
 
 class SD3ClipModel(torch.nn.Module):
-    def __init__(self, device="cpu", dtype=None):
+    def __init__(self, clip_l=True, clip_g=True, t5=True, device="cpu", dtype=None):
         super().__init__()
+        if clip_l:
             self.clip_l = sd1_clip.SDClipModel(layer="hidden", layer_idx=-2, device=device, dtype=dtype, layer_norm_hidden_state=False, return_projected_pooled=False)
+        else:
+            self.clip_l = None
+
+        if clip_g:
             self.clip_g = sdxl_clip.SDXLClipG(device=device, dtype=dtype)
+        else:
+            self.clip_g = None
+
+        if t5:
             self.t5xxl = T5XXLModel(device=device, dtype=dtype)
+        else:
+            self.t5xxl = None
+
+        logging.debug("Created SD3 text encoder with: clip_l {}, clip_g {}, t5xxl {}".format(clip_l, clip_g, t5))
 
     def set_clip_options(self, options):
+        if self.clip_l is not None:
             self.clip_l.set_clip_options(options)
+        if self.clip_g is not None:
             self.clip_g.set_clip_options(options)
+        if self.t5xxl is not None:
             self.t5xxl.set_clip_options(options)
 
     def reset_clip_options(self):
-        self.clip_g.reset_clip_options()
+        if self.clip_l is not None:
             self.clip_l.reset_clip_options()
+        if self.clip_g is not None:
+            self.clip_g.reset_clip_options()
+        if self.t5xxl is not None:
             self.t5xxl.reset_clip_options()
 
     def encode_token_weights(self, token_weight_pairs):
@@ -64,22 +84,43 @@ class SD3ClipModel(torch.nn.Module):
         token_weight_pairs_g = token_weight_pairs["g"]
         token_weight_pars_t5 = token_weight_pairs["t5xxl"]
         lg_out = None
+        pooled = None
+        out = None
+
         if len(token_weight_pairs_g) > 0 or len(token_weight_pairs_l) > 0:
-            l_out, l_pooled = self.clip_l.encode_token_weights(token_weight_pairs_l)
+            if self.clip_l is not None:
+                lg_out, l_pooled = self.clip_l.encode_token_weights(token_weight_pairs_l)
+            else:
+                l_pooled = torch.zeros((1, 768), device=comfy.model_management.intermediate_device())
+
+            if self.clip_g is not None:
                 g_out, g_pooled = self.clip_g.encode_token_weights(token_weight_pairs_g)
-            lg_out = torch.cat([l_out, g_out], dim=-1)
+                if lg_out is not None:
+                    lg_out = torch.cat([lg_out, g_out], dim=-1)
+                else:
+                    lg_out = torch.nn.functional.pad(g_out, (768, 0))
+            else:
+                g_out = None
+                g_pooled = torch.zeros((1, 1280), device=comfy.model_management.intermediate_device())
+
+            if lg_out is not None:
                 lg_out = torch.nn.functional.pad(lg_out, (0, 4096 - lg_out.shape[-1]))
                 out = lg_out
             pooled = torch.cat((l_pooled, g_pooled), dim=-1)
-        else:
-            pooled = torch.zeros((1, 1280 + 768), device=comfy.model_management.intermediate_device())
 
+        if self.t5xxl is not None:
             t5_out, t5_pooled = self.t5xxl.encode_token_weights(token_weight_pars_t5)
             if lg_out is not None:
                 out = torch.cat([lg_out, t5_out], dim=-2)
             else:
                 out = t5_out
 
+        if out is None:
+            out = torch.zeros((1, 77, 4096), device=comfy.model_management.intermediate_device())
+
+        if pooled is None:
+            pooled = torch.zeros((1, 768 + 1280), device=comfy.model_management.intermediate_device())
+
         return out, pooled
 
     def load_sd(self, sd):

comfy/supported_models.py

@@ -54,7 +54,7 @@ class SD15(supported_models_base.BASE):
         replace_prefix = {"clip_l.": "cond_stage_model."}
         return utils.state_dict_prefix_replace(state_dict, replace_prefix)
 
-    def clip_target(self):
+    def clip_target(self, state_dict={}):
         return supported_models_base.ClipTarget(sd1_clip.SD1Tokenizer, sd1_clip.SD1ClipModel)
 
 class SD20(supported_models_base.BASE):
@@ -97,7 +97,7 @@ class SD20(supported_models_base.BASE):
         state_dict = diffusers_convert.convert_text_enc_state_dict_v20(state_dict)
         return state_dict
 
-    def clip_target(self):
+    def clip_target(self, state_dict={}):
         return supported_models_base.ClipTarget(sd2_clip.SD2Tokenizer, sd2_clip.SD2ClipModel)
 
 class SD21UnclipL(SD20):
@@ -159,7 +159,7 @@ class SDXLRefiner(supported_models_base.BASE):
         state_dict_g = utils.state_dict_prefix_replace(state_dict_g, replace_prefix)
         return state_dict_g
 
-    def clip_target(self):
+    def clip_target(self, state_dict={}):
         return supported_models_base.ClipTarget(sdxl_clip.SDXLTokenizer, sdxl_clip.SDXLRefinerClipModel)
 
 class SDXL(supported_models_base.BASE):
@@ -228,7 +228,7 @@ class SDXL(supported_models_base.BASE):
         state_dict_g = utils.state_dict_prefix_replace(state_dict_g, replace_prefix)
         return state_dict_g
 
-    def clip_target(self):
+    def clip_target(self, state_dict={}):
         return supported_models_base.ClipTarget(sdxl_clip.SDXLTokenizer, sdxl_clip.SDXLClipModel)
 
 class SSD1B(SDXL):
@@ -299,7 +299,7 @@ class SVD_img2vid(supported_models_base.BASE):
         out = model_base.SVD_img2vid(self, device=device)
         return out
 
-    def clip_target(self):
+    def clip_target(self, state_dict={}):
         return None
 
 class SV3D_u(SVD_img2vid):
@@ -365,7 +365,7 @@ class Stable_Zero123(supported_models_base.BASE):
         out = model_base.Stable_Zero123(self, device=device, cc_projection_weight=state_dict["cc_projection.weight"], cc_projection_bias=state_dict["cc_projection.bias"])
         return out
 
-    def clip_target(self):
+    def clip_target(self, state_dict={}):
         return None
 
 class SD_X4Upscaler(SD20):
@@ -439,7 +439,7 @@ class Stable_Cascade_C(supported_models_base.BASE):
         out = model_base.StableCascade_C(self, device=device)
         return out
 
-    def clip_target(self):
+    def clip_target(self, state_dict={}):
         return supported_models_base.ClipTarget(sdxl_clip.StableCascadeTokenizer, sdxl_clip.StableCascadeClipModel)
 
 class Stable_Cascade_B(Stable_Cascade_C):
@@ -501,14 +501,29 @@ class SD3(supported_models_base.BASE):
 
     unet_extra_config = {}
     latent_format = latent_formats.SD3
-    text_encoder_key_prefix = ["text_encoders."] #TODO?
+    text_encoder_key_prefix = ["text_encoders."]
 
     def get_model(self, state_dict, prefix="", device=None):
         out = model_base.SD3(self, device=device)
         return out
 
-    def clip_target(self):
-        return supported_models_base.ClipTarget(sd3_clip.SD3Tokenizer, sd3_clip.SD3ClipModel) #TODO?
+    def clip_target(self, state_dict={}):
+        clip_l = False
+        clip_g = False
+        t5 = False
+        pref = self.text_encoder_key_prefix[0]
+        if "{}clip_l.transformer.text_model.final_layer_norm.weight".format(pref) in state_dict:
+            clip_l = True
+        if "{}clip_g.transformer.text_model.final_layer_norm.weight".format(pref) in state_dict:
+            clip_g = True
+        if "{}t5xxl.transformer.encoder.final_layer_norm.weight".format(pref) in state_dict:
+            t5 = True
+
+        class SD3ClipModel(sd3_clip.SD3ClipModel):
+            def __init__(self, device="cpu", dtype=None):
+                super().__init__(clip_l=clip_l, clip_g=clip_g, t5=t5, device=device, dtype=dtype)
+
+        return supported_models_base.ClipTarget(sd3_clip.SD3Tokenizer, SD3ClipModel)
 
 
 models = [Stable_Zero123, SD15_instructpix2pix, SD15, SD20, SD21UnclipL, SD21UnclipH, SDXL_instructpix2pix, SDXLRefiner, SDXL, SSD1B, KOALA_700M, KOALA_1B, Segmind_Vega, SD_X4Upscaler, Stable_Cascade_C, Stable_Cascade_B, SV3D_u, SV3D_p, SD3]