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| import folder_paths | |
| import os | |
| import torch | |
| import torch.nn.functional as F | |
| from comfy.utils import ProgressBar, load_torch_file | |
| import comfy.sample | |
| from nodes import CLIPTextEncode | |
| script_directory = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) | |
| folder_paths.add_model_folder_path("intrinsic_loras", os.path.join(script_directory, "intrinsic_loras")) | |
| class Intrinsic_lora_sampling: | |
| def __init__(self): | |
| self.loaded_lora = None | |
| def INPUT_TYPES(s): | |
| return {"required": { "model": ("MODEL",), | |
| "lora_name": (folder_paths.get_filename_list("intrinsic_loras"), ), | |
| "task": ( | |
| [ | |
| 'depth map', | |
| 'surface normals', | |
| 'albedo', | |
| 'shading', | |
| ], | |
| { | |
| "default": 'depth map' | |
| }), | |
| "text": ("STRING", {"multiline": True, "default": ""}), | |
| "clip": ("CLIP", ), | |
| "vae": ("VAE", ), | |
| "per_batch": ("INT", {"default": 16, "min": 1, "max": 4096, "step": 1}), | |
| }, | |
| "optional": { | |
| "image": ("IMAGE",), | |
| "optional_latent": ("LATENT",), | |
| }, | |
| } | |
| RETURN_TYPES = ("IMAGE", "LATENT",) | |
| FUNCTION = "onestepsample" | |
| CATEGORY = "KJNodes" | |
| DESCRIPTION = """ | |
| Sampler to use the intrinsic loras: | |
| https://github.com/duxiaodan/intrinsic-lora | |
| These LoRAs are tiny and thus included | |
| with this node pack. | |
| """ | |
| def onestepsample(self, model, lora_name, clip, vae, text, task, per_batch, image=None, optional_latent=None): | |
| pbar = ProgressBar(3) | |
| if optional_latent is None: | |
| image_list = [] | |
| for start_idx in range(0, image.shape[0], per_batch): | |
| sub_pixels = vae.vae_encode_crop_pixels(image[start_idx:start_idx+per_batch]) | |
| image_list.append(vae.encode(sub_pixels[:,:,:,:3])) | |
| sample = torch.cat(image_list, dim=0) | |
| else: | |
| sample = optional_latent["samples"] | |
| noise = torch.zeros(sample.size(), dtype=sample.dtype, layout=sample.layout, device="cpu") | |
| prompt = task + "," + text | |
| positive, = CLIPTextEncode.encode(self, clip, prompt) | |
| negative = positive #negative shouldn't do anything in this scenario | |
| pbar.update(1) | |
| #custom model sampling to pass latent through as it is | |
| class X0_PassThrough(comfy.model_sampling.EPS): | |
| def calculate_denoised(self, sigma, model_output, model_input): | |
| return model_output | |
| def calculate_input(self, sigma, noise): | |
| return noise | |
| sampling_base = comfy.model_sampling.ModelSamplingDiscrete | |
| sampling_type = X0_PassThrough | |
| class ModelSamplingAdvanced(sampling_base, sampling_type): | |
| pass | |
| model_sampling = ModelSamplingAdvanced(model.model.model_config) | |
| #load lora | |
| model_clone = model.clone() | |
| lora_path = folder_paths.get_full_path("intrinsic_loras", lora_name) | |
| lora = load_torch_file(lora_path, safe_load=True) | |
| self.loaded_lora = (lora_path, lora) | |
| model_clone_with_lora = comfy.sd.load_lora_for_models(model_clone, None, lora, 1.0, 0)[0] | |
| model_clone_with_lora.add_object_patch("model_sampling", model_sampling) | |
| samples = {"samples": comfy.sample.sample(model_clone_with_lora, noise, 1, 1.0, "euler", "simple", positive, negative, sample, | |
| denoise=1.0, disable_noise=True, start_step=0, last_step=1, | |
| force_full_denoise=True, noise_mask=None, callback=None, disable_pbar=True, seed=None)} | |
| pbar.update(1) | |
| decoded = [] | |
| for start_idx in range(0, samples["samples"].shape[0], per_batch): | |
| decoded.append(vae.decode(samples["samples"][start_idx:start_idx+per_batch])) | |
| image_out = torch.cat(decoded, dim=0) | |
| pbar.update(1) | |
| if task == 'depth map': | |
| imax = image_out.max() | |
| imin = image_out.min() | |
| image_out = (image_out-imin)/(imax-imin) | |
| image_out = torch.max(image_out, dim=3, keepdim=True)[0].repeat(1, 1, 1, 3) | |
| elif task == 'surface normals': | |
| image_out = F.normalize(image_out * 2 - 1, dim=3) / 2 + 0.5 | |
| image_out = 1.0 - image_out | |
| else: | |
| image_out = image_out.clamp(-1.,1.) | |
| return (image_out, samples,) |