James Richters <ja...@productionautomation.net> schrieb am Di., 17. Sep. 2019, 16:15:
> I'm curious if Freepascal has any package available that would calculate > X,Y screen pixels based on 3D X,Y,Z data at some given rotations. I'm > using Agg-Pas with PTC-Graph in a console application on Windows. I'm not > sure what the technical term is for figuring out what pixels are used to > represent 3D coordinates on a 2D screen, but I'm hoping maybe there is > something that just does the calculations that I can use in conjunction > with Agg-Pas and PTC-Graph instead of moving to a complete graphics package. > You're essentially looking for a software renderer/rasterizer. Lookup things like projection matrix and model view matrix. You can also take a look at the "Ray Tracing in one weekend" books ( https://github.com/RayTracing/raytracing.github.io ) to get a feeling for what's required. In the end you might be better served to use a graphics package or at least OpenGL. Regards, Sven >
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