![]() It's a delicate balance – reducing the data enough to manage system requirements, but not so much that it detracts from the overall visual experience. Unlike lossless compression, which preserves all data, lossy compression is designed to remove data while keeping the perceptible difference in our game environment to an absolute minimum. This form of compression allows us to significantly reduce the data size by eliminating less important information. This is a crucial component in our strategy to deliver HD terrain without overwhelming your system. The answer to this issue is to utilize "lossy" data compression. This method effectively prevents the 'jelly-like' warping noticed on sharp edges with conventional parallax rendering.Īnother important consideration is how to handle all the extra data that is being pushed around. Displacement mapping interpolates between data points based on height data from the ground textures, and modifies the actual ground geometry at even finer resolutions. While the LOD system maintains high detail where it matters most, we can leverage displacement mapping to push the amount of intricate detail possible even further. It provides us the flexibility to strategically allocate system resources to where they're most visually impactful, without overwhelming the hardware.Īnother critical element is 'displacement mapping'. ![]() Conversely, for areas farther from the camera, tessellation generates fewer polygons, aiding performance by reducing the rendering load. With tessellation, we can generate a high density of polygons close to the camera for a highly detailed, realistic view. It is the linchpin of our new Level of Detail (LOD) implementation. So what techniques have we employed to achieve this massive increase in detail?įirst up is 'tessellation', which is a GPU-based technique that generates a high number of polygons and allows us to dynamically adjust the number of polygons in various parts of the scene. HD terrain increases the number of data samples for a given terrain area by 6,400x as compared to classic 10m terrain, meaning that sharp and jaggy edges for terrain shaping and texturing are totally eliminated. High Definition (HD) terrain represents a significant advancement in Trainz, delivering unprecedented levels of detail and precision. Join discussions and let your voice be heard in the world of TrainzĬreate your own Trainz gallery and view thousands of screenshots from other Trainz fans.High Definition (HD) Terrain Technology Overview Register your Trainz serial number to access thousands of items from the Trainz Download Station. Create a profile and share your online experience with others. The Trainz community is home for over 300,000 gamers and train fans. By clicking above to submit this form, you acknowledge that the information you provide will be transferred to MailChimp for processing in accordance with their Privacy Policy and Terms. We use MailChimp as our marketing automation platform. To receive newsletters from us on releases, special offers and Trainz news please select from the options below. Subscribe to our newsletter and receive a free copy of Trainz Simulator 2009.Ĭlick, then log in and update your newsletter subscription
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