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Results tagged with projections
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user 8009
Questions about the conversions of a 3D model to a 2D model.
2
votes
perspective matrix derivation
TL;DR:
The view frustum is the NDC box. It's just that NDC space is nonlinear because it occurs after the perspective divide by w. The tops and sides of the frustum are parallel in NDC space. All li …
- 410
1
vote
Determining slopes of lines in perspective projection
You definitely need to know distances and angle of view of the camera. For example, if you add lines that are slightly further apart, they will be at different angles. Like a multi-lane highway.
- 410
2
votes
Accepted
Difference between perspective and parallel projection
In OpenGL parlance, the projection matrix, whether orthographic or perspective, takes you from View Space (a.k.a. Camera Space) to Homogenous Clip Space. After clipping you arrive at Normalized Devic …
- 410