环境准备
下载及简介
git clone https://huggingface.co/stabilityai/stable-diffusion-3-medium
SD3 checkpoints：
- sd3_medium_incl_clips.safetensors (5.5GB)
- sd3_medium_incl_clips_t5xxlfp8.safetensors (10.1GB)
- sd3_medium.safetensors (4.3GB)
前两个可以像 ComfyUI 中的任何常规checkpoints一样使用。这两个checkpoints之间的区别在于，第一个仅包含 2 个文本编码器：CLIP-L 和 CLIP-G，第二个包含 3 个：CLIP-L、CLIP-G 和 T5XXL。第三个模型不包含文本编码器，必须单独加载它们才能使用该文件。
模型保存
把如下三个模型放在 ComfyUI/models/checkpoints/ 目录中（可以选择其中一个模型体验）
- sd3_medium_incl_clips.safetensors
- sd3_medium_incl_clips_t5xxlfp8.safetensors
- sd3_medium.safetensors
文本编码器保存
从text_encoders目录下载文本编码器，选择其中的一个文件保存到ComfyUI/models/clip/目录中：
- clip_g.safetensors
- clip_l.safetensors
- t5xxl_fp8_e4m3fn.safetensors
- t5xxl_fp16.safetensors
ComfyUI 测试体验
打开comfyui 界面 导入脚本并执行：
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"size": {
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"flags": {},
"order": 0,
"mode": 0,
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"type": "CLIP",
"links": [
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"shape": 3,
"slot_index": 0
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],
"properties": {
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"widgets_values": [
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"type": "CLIPTextEncode",
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"flags": {},
"order": 6,
"mode": 0,
"inputs": [
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],
"outputs": [
{
"name": "CONDITIONING",
"type": "CONDITIONING",
"links": [
93,
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"shape": 3,
"slot_index": 0
}
],
"title": "CLIP Text Encode (Negative Prompt)",
"properties": {
"Node name for S&R": "CLIPTextEncode"
},
"widgets_values": [
"bad quality, poor quality, doll, disfigured, jpg, toy, bad anatomy, missing limbs, missing fingers, 3d, cgi"
],
"color": "#322",
"bgcolor": "#533"
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{
"id": 68,
"type": "ConditioningSetTimestepRange",
"pos": [
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"flags": {},
"order": 10,
"mode": 0,
"inputs": [
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],
"outputs": [
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"links": [
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],
"properties": {
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"properties": {
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"properties": {
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"widgets_values": [
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"color": "#432",
"bgcolor": "#653"
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{
"id": 13,
"type": "ModelSamplingSD3",
"pos": [
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"flags": {
"collapsed": false
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"order": 7,
"mode": 0,
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"outputs": [
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"properties": {
"Node name for S&R": "ModelSamplingSD3"
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"outputs": [
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"properties": {
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{
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"size": {
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"flags": {},
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"mode": 0,
"inputs": [
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"properties": {
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},
{
"id": 231,
"type": "VAEDecode",
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"mode": 0,
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{
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{
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599
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"shape": 3,
"slot_index": 0
}
],
"properties": {
"Node name for S&R": "VAEDecode"
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{
"id": 252,
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565
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557
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],
"properties": {
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"widgets_values": [
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},
"flags": {},
"order": 12,
"mode": 0,
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"type": "MODEL",
"link": 591
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{
"name": "negative",
"type": "CONDITIONING",
"link": 592
},
{
"name": "latent_image",
"type": "LATENT",
"link": 593
},
{
"name": "seed",
"type": "INT",
"link": 597,
"widget": {
"name": "seed"
},
"slot_index": 4
}
],
"outputs": [
{
"name": "LATENT",
"type": "LATENT",
"links": [
596
],
"shape": 3,
"slot_index": 0
}
],
"properties": {
"Node name for S&R": "KSampler"
},
"widgets_values": [
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28,
4.5,
"dpmpp_2m",
"sgm_uniform",
1
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},
{
"id": 135,
"type": "EmptySD3LatentImage",
"pos": [
-2352,
438
],
"size": {
"0": 315,
"1": 106
},
"flags": {},
"order": 3,
"mode": 0,
"inputs": [],
"outputs": [
{
"name": "LATENT",
"type": "LATENT",
"links": [
593
],
"shape": 3,
"slot_index": 0
}
],
"properties": {
"Node name for S&R": "EmptySD3LatentImage"
},
"widgets_values": [
1024,
1024,
1
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},
{
"id": 6,
"type": "CLIPTextEncode",
"pos": [
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],
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595
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"shape": 3,
"slot_index": 0
}
],
"properties": {
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"color": "#232",
"bgcolor": "#353"
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{
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"slot_index": 0,
"widget": {
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],
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"properties": {
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"groups": [
{
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"color": "#3f789e",
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{
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],
"config": {},
"extra": {},
"version": 0.4
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测试结果展示
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