/vr/ - Retro Games

Anonymous Fri Aug 21 17:46:13 2020 No.6747290 [View]
File: 124 KB, 557x200, 87E3F2F7-8517-4576-BE29-44494D90BC5E.gif [View same] [iqdb] [saucenao] [google]

Doom is done with ray casting. It calculates how far an object is on a 2D map and then draws the image height (bigger/smaller vs closer/farther) to simulate 3D. Also, there are no polygons or voxels. Doom is 2D.

Ever watch a 3D movie? Notice how everything looks like a pop up picture book. You can’t move your head to see around a “3d” object.

https://en.m.wikipedia.org/wiki/Ray_casting

>>	Anonymous Thu May 24 10:55:10 2018 No.4795094 [View] File: 124 KB, 557x200, 1506173754780.gif [View same] [iqdb] [saucenao] [google] >>4794985

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/vr/ - Retro Games

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