这是一款基于 LTX 2.3 Dev-Dare + VBVR 最终版 + PromptRelay 分段动作控制 + NAG 条件增强 + 三阶渲染打磨 + 双重 Latent 放大 的高质量图生视频应用。用户上传一张 首帧参考图，再填写 全局提示词 和 分段提示词，系统会根据图片主体生成一段动态视频。它不是普通的一步图生视频，而是通过 三阶段采样、三阶段图像约束、AV Latent 链路和 Latent Upsampler 逐步完成基础动态、细节强化和最终画质打磨。
这版相比普通图生视频，重点增强在 Dev-Dare 底座 + VBVR 运动逻辑 + LTX2_NAG 条件增强。Dev-Dare 提供更强的视频生成基础，VBVR 强化动作连续性和运动理解，NAG 让提示词约束更稳，再配合三阶段采样和双重 Latent 放大，可以让静态图片更稳定地动起来，适合做人物动态、角色动作、剧情短片、封面动态化、AI短视频素材和高质量图生视频成片。核心优势是：一张图定画面，PromptRelay 控动作，Dev-Dare + VBVR 增强运动稳定与成片质感。 使用时建议重点控制三项：首帧参考图决定主体和构图，全局提示词（用来写整体画面规则）决定整体规则，分段提示词（写每个时间段的动作变化）决定每段动作推进。
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