![]() The situation becomes complex, if the distance isn't especially long when compared to distance differences between camera and the corners. Rotation around Y axis means scaling in X direction to cos(rotation angle) and there's no interaction between those scalings. If the shape is rotated 30 degrees only around X axis with no other rotations and it's seen from very far away with a high zoom teleobjective you simply scale it vertically smaller, actually to cos(30 degrees) = 86,6% ![]() ![]() In addition you obviously want to scale the image just like you scale photos taken by a real camera, you do not watch them in camera sensor size.Īn alternative spec is to specify the imaging sector angle of the camera. Perspective isn't defined until you also specify the placement and focal length of the imagined camera.
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