We propose an original method for generating planets with a high level of detail in real time. Our approach relies on a procedural hyper-amplification algorithm: a controlled subdivision process that faithfully reproduces landforms and hydrosphere features at different scales. Starting from low-resolution user-defined control maps providing information about the elevation, the presence of large-scale water bodies and landforms types, we apply subdivision rules to obtain a high-resolution hydrologically consistent planet model. We first generate large-scale river networks connected to inner seas and oceans and then synthesize the detailed hydrographic landscapes, including river tributaries and lakes, mountain ranges, valleys, plateaus, deserts and hills systems. Our GPU implementation allows to interactively explore planets that are produced by tectonic simulations, generated procedurally or authored by artists.

中文翻译：

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行星的实时超放大

我们提出了一种实时生成具有高度细节的行星的原始方法。我们的方法依赖于程序性超放大算法：一个受控的细分过程，忠实地再现不同尺度的地形和水圈特征。从提供有关高程、大尺度水体和地貌类型信息的低分辨率用户定义控制图开始，我们应用细分规则来获得高分辨率水文一致的行星模型。我们首先生成与内海和大洋相连的大规模河流网络，然后合成详细的水文景观，包括河流支流和湖泊、山脉、山谷、高原、沙漠和丘陵系统。