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PocketMatrix • View topic - OpenglEs Frustrum..
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OpenglEs Frustrum..


OpenglEs Frustrum..

Postby RapchikProgrammer » Nov 19, 2009 @ 4:17am

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Postby edge » Nov 19, 2009 @ 9:03am

Hi,

EDGELIB doesn't change the perspective matrix unless you're calling ClassEDisplay::Perspective2D or ClassEDisplay::Perspective3D. Perhaps you're setting a 2D perspective to show text or HUD elements?
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Postby RapchikProgrammer » Nov 19, 2009 @ 9:17am

Yes i am using perspective 3d and perspective 2d calls as i need to render hud, gui and stuff.. so how to handle the frustrum culling?? and why wont the display->frustrum call work perfectly??

another question what does exactly the perspective 3d function do?? perspective 2d is just changing the mode to glOrtho2d i think, but i dont understand exactly what perspective 3d is doing..
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Postby edge » Nov 23, 2009 @ 10:26am

Hi,

Perspective2D and perspective3D are wrappers for glOrtho and glFrustum respectively. Perhaps you need to enable frustum culling through a glEnable call?
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