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Paul Griffiths

Are you clever? Distance Problem.

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I think I've worked it out, some angles are positive and some are negative, got to work them out.

 

Simpler than that, calculate if portals rotated by <>180 and then do distance plane equation, simple!

Edited by paulgriffiths

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If your portals are planar polygons, which portal a ray from the camera sees can only change

  • at the edges of a portal
  • at the intersection of two portals

Distances between portals and camera do not matter, except to define depth buffers that can be used.to locate portal edges and intersections in screen space.

 

You also don't seem to clip portals against the view frustum of your camera.

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