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【closerAI ComfyUI】shuttle画人像不行？玩转4步出图模型shuttle，利用三阶采样产出高品质图片！大家好，我是Jimmy。上期我们介绍了shuttle-3-diffusion模型，我们介绍了它13个模型中最优的GGUF模型实现4步出图，且加入换脸节点pulid flux的加持，能快速在生成写真。没看的各位支持下再看看学习下呗。
【closerAI ComfyUI】可商用！4步出图！Flux新模型Shuttle 3以高效的姿势杀出重围！让效率直线提升！推荐延续上期的结尾，我们之前介绍了基于flux文生图的三阶采样生图原理：【closerAI ComfyUI】令人惊讶的生图质量，这个flux工作流与一般的不同！三阶采样让flux出图更高效和更细节！在FLUX的几个原生模型都能使用三阶采样实现高质量的出图。但是，这里有个痛点就是，生图过程有点慢。为了能利用shuttle 3的高效优点，看能不能在三阶采样后生成质量更高一点的图以及速度是否能满足正常人能等待的时间。因为还是那句话，高效才有生产力，才能更好地让相应项目落地变现，一味地通过更新硬件设备提速的都是脱离群众的，不实际的。
毕竟，穷是通病。下面我们closerAI团队搭建了一个基于shuttle 3 GGUF 的三阶采样生图工作流。这里是基于它的4步采样来设置的参数。10步则进入细节模，这里我们测试一个即可，10步则根据这个方法设置好步数即可。下面先进行4步的三阶采样生图测试：下面是flux shuttle 三阶采样生图工作流：这里讲讲工作流思路。因为模型是4步生图。所以，通过三次采样的话，我们每次的生图参数如下：第一次采样：步数为1，从0到1；第二次采样：步数为2，从1到2；第三次采样：步数为4，从2到4；
以下是测试结果
一共是2分56秒完成。
可以看出，通过三阶采样方式生成后效果如右图示。感觉，感觉，好像是好了那么一点。但塑料感总觉得有点怪怪呢。
我们再试一下呗：提示词：
A young asian woman sitting on a wooden bench in a cafe, holding a book in her hands. she has long black hair and is wearing a blue denim jacket over a black t-shirt with a yellow star design and a purple plaid skirt. the woman is smiling and looking directly at the camera, with her black eyes locked onto the viewer. the background shows a cozy outdoor cafe with wooden tables and chairs, and a man sitting in the background. the lighting is soft and natural, creating a warm and inviting atmosphere. the overall mood of the image is casual and inviting.
一共是2分钟。速度可以的。主要是人像生成方面还是差强人意。但总比直出的好。这里我们加入一个自动CFG的节点来修复下这个模型人像生成过拟合的问题。再来一个试试：提示词
A photo-realistic shoot from a portrait camera angle about a young woman in a traditional yellow cheongsam holding a decorative brush, set against a solid red background. the image also shows a woman in the middle of the image, who appears to be in her early twenties, with long black hair styled in a side ponytail, wearing a bright yellow qipao dress with a high collar and a pearl necklace. she is holding a wooden brush in her right hand and a green tassel in her left hand. the woman has a neutral expression and is looking directly at the camera, with her brown eyes looking straight at the viewer. her hair is styled with a black hairpin, and she is wearing red nail polish on her fingernails. the overall aesthetic is elegant and sophisticated, with a focus on the woman's beauty and elegance.
提示词：
A photo-realistic portrait shoot from a portrait camera angle about a young woman in traditional chinese attire holding a decorative fan against a solid red background. the image also shows a woman in the middle of the image, who appears to be in her early twenties, with fair skin, black hair styled in a single bun, and red lipstick. she is wearing a black cheongsam dress with short sleeves and a gold bracelet on her left wrist. the woman is holding a wooden fan with a yellow tassel in her right hand, and her left hand is resting on her hip. her facial expression is neutral, and she is looking directly at the camera with a slight smile. her hair is styled in an elegant updo with a few black hair clips. the background is a solid solid red color, and the image has a high-quality, professional look with a focus on the woman's beauty and elegance.
不错的。平均生成速度是1分36秒。且生成的人像也很好地解决了。至少是比之前直出，和CFG手动调的结果好。
提示词：
A photo-realistic underwater scene featuring a young woman with long, flowing black hair, partially submerged in a clear blue pool, surrounded by orange fish. the woman, positioned in the middle of the image, is wearing a white sleeveless top that accentuates her slim body and bare shoulders. she has a serene expression and is looking directly at the viewer with her brown eyes. her hair is floating in the water, with bubbles visible around her head. the background is a vibrant underwater scene with coral and other aquatic plants. the lighting is bright and natural, highlighting the woman's features and the fish around her. the image has a high-quality, realistic style with a focus on the subject's beauty and the underwater environment.
图片上传失败重试
注意以上图片尺寸是768*1024。结论，shuttle 3 的4步生图，能通过三阶采样优化生成结果。同时如果是人像的话，加入自动CFG的功能，防止人物生成过饱和，起到优化作用。整体在flux生态中，个人认为它能很好地提高出图效率。不过还有迭代优化空间。哈哈。至于10步的三阶采样。大家可以根据这个原理进行测试。以上就是closerAI开发的closerAI FLUX shuttle 4步/10步三阶采样工作流介绍，大家可以根据工作流思路进行尝试搭建。
当然，也可以在我们closerAI会员站上获取对应的工作流。
更多AI前沿科技资讯，请关注我们：
closerAIGCcloserAI，一个深入探索前沿人工智能与AIGC领域的资讯平台，我们旨在让AIGC渗入我们的工作与生活中，让我们一起探索AIGC的无限可能性！ 7篇原创内容 公众号
产品经理逛世界一只在互联网PM浪迹多年的吉米猫，希望与大家一起分享，一起成长，一起用发现的眼光看世界，用一颗产品心分析世间万物。个人资源分享网站：www.douyoubuy.cn 809篇原创内容 公众号
点击“阅读原文”跳转工作流
通过网盘分享的文件：closerAI FLUX shuttle 4步三阶采样工作流1119.json
链接: https://pan.baidu.com/s/1-CVA-NuVsNik9Nmvrx8-IQ 提取码: 8bdi
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