Updated blog post on sphere rasterization: now with efficient screen space bounds, thanks @rygorous and @self_shadow! http://bit.ly/QZU73Z
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@AriSilvennoinen@rygorous@self_shadow Counterexample to "proof" that sphere projection is an ellipse: http://nothings.org/remote/projection_of_sphere.png … Conic section.
@nothings Your "counterexample" misses the point that a valid view plane with view frustum was assumed. General plane vs. cone is conic.
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@AriSilvennoinen I'm not missing anything. All you need is view frustum to intersect sphere cone. Easy if sphere is big (viewer on planet). -
@nothings As long as the intersection of the cone and the image plane is a closed plane curve we have an ellipse. Otherwise it is a conic. - Voir les réponses
Nouvelle conversation -
Le chargement semble prendre du temps.
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