Hardware-Accelerated Point Generation and Rendering of Point-Based Impostors
Jakob Andreas Bærentzen · Journal of Graphics Tools · 2005
This paper presents a novel scheme for generating points from triangle models. The method is fast and lends itself well to implementation using graphics hardware. The triangle-to-point conversion is done by rendering the models, and the rendering may be performed procedurally or by a black box API. I describe the technique in detail and discuss how the generated point sets can easily be used as impostors for the original triangle models used to create the points. Since the points reside solely in GPU memory, these impostors are fairly efficient. Source code is available online.