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PRWM is an abbreviation for "Point Cloud Remote-Sensing Data Web Map Service" and is a format for point cloud remote data services. It was developed by the US Geological Survey (USGS) to transfer, store and share point cloud data in a web environment. The PRWM format is based on the existing Web Map Service (WMS) standard, but is optimized for point cloud data. It can handle large-scale point cloud data well, supports multiple data types, and provides efficient data compression and network transmission capabilities. With the PRWM service, users can seamlessly access and use point cloud data on the web platform without downloading and importing data in the traditional way. This greatly reduces the cost and time of data usage, and also provides more possibilities for point cloud data sharing and communication.
COLLADA is an XML-based digital asset exchange solution for interactive 3D applications, allowing 3D creation applications to freely exchange digital assets without losing information - enabling a powerful toolchain pipeline combining multiple DCC and 3D processing software packages. Its unique interactive mode provides a comprehensive visual compilation. COLLADA FX supports the creation and encapsulation of shaders using OpenGL ES shading language, enabling first-class 3D creation tools to effectively collaborate in creating OpenGL / OpenGL ES applications and assets.
COLLADA is an open standard, originally used for 3D software data exchange, initiated by SCEA, and now supported by many well-known manufacturers such as Autodesk and XSI. COLLADA can be used not only for exchanging data between modeling tools, but also as a scene description language for small-scale real-time rendering. Because COLLADA DOM has rich content for representing various elements in the scene, from polygonal geometry to cameras, we can use the COLLADA DOM library to read and process scene files. The programming method of COLLADA DOM is similar to COM.