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Help with matrices

Started by Pacifist Jun 7, 2004 at 8:01 PM 3 replies 400+ views

Original Post

Jun 7, 2004 at 8:01 PM

I want to create a projection matrix that causes everything to be aligned parrallel to the camera. Currently in my code whenever something gets to the edge of the screen it appears at a slight angle, i don''t want this (it''s a top down shooter). I currently have the FOV set to a really low number to overcome this, but this means that the objects have to be drawn at a really large distance, so obviously this isn''t ideal. Any ideas?

boebi

Jun 7, 2004 at 8:28 PM

Look into setting an ortho projection. I don''t know what API you''re using, but do a search in your docs for some version of "OrthoLH".

Pacifist

Author

Pacifist

Jun 7, 2004 at 10:07 PM

Hmmm the ortho matrix killed my Z-Distance-Values.
They are now meaningless for everything.
Is there a way to create a matrix where things still get shrunk as their Z-Distance increases?

[edited by - Pacifist on June 7, 2004 11:07:38 PM]

boebi

Jun 7, 2004 at 10:16 PM

the only projection matrix that shrinks things along z is the normal perspective matrix as far as I know.

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