这是一款基于 LTX 2.3 Dev-Dare 模型 + PromptRelay 分段剧情控制 + VBVR运动逻辑增强 + Crisp画质增强 + 三阶渲染打磨 + 双重 Latent 放大 的单/双人数字人视频应用。用户上传一张 人物首帧图 / 单双人参考图，再填写 全局提示词 和 分段提示词，系统会根据参考图生成稳定的人物动态视频。它不是外部音频驱动版，核心是通过文字提示词控制人物动作、表情、互动、站位和镜头节奏，更适合做单人表演、双人互动、剧情分镜、AI短剧片段和角色演绎视频。
这版相比普通三阶渲染版，重点增强在 Dev-Dare 模型底座 + NAG增强 + 双LoRA增益：Dev-Dare 提供更强的视频生成底座，NAG 让提示词约束更稳，VBVR LoRA 强化运动逻辑，Crisp LoRA 提升画面质感。再配合三阶段采样、三阶段图像约束、双重 Latent Upsampler 和分块解码，可以让单人或双人画面更稳定、更细腻、更适合成片输出。核心优势是：单图定人物，PromptRelay控剧情，Dev-Dare+VBVR+Crisp增强稳定与质感。 使用时建议重点控制三项：人物首帧图决定身份，Global Prompt 决定整体规则，Local Prompts 决定每段动作和剧情。
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