NNS_G3dWorldPosToScrPos

Syntax

#include <nnsys/g3d/util.h>

int
NNS_G3dWorldPosToScrPos(
    const VecFx32* pWorld,
    int* px,
    int* py
);

Arguments

pWorld Pointer to the world coordinate position
px Pointer to the x coordinate on the screen
py Pointer to the y coordinate on the screen

Return Values

Returns 0 if *px and *py are inside the viewport. Returns -1 if they are outside of the viewport.

Description

Looks for the position on the screen that corresponds to the position on the world coordinates. The camera matrix and the projection matrix must be configured in the NNS_G3dGlb structure. Even if the return value is -1, the value is stored in *px and *py and can be used as the directional guide. When applying a horizontal offset to the 3D screen by using the Nitro-SDK G3X_SetHOffset function, only the offset portion of the obtained x coordinate needs to be moved.

See Also

NNS_G3dLocalOriginToScrPos, NNS_G3dScrPosToWorldLine

Revision History

2004/11/01 Initial version.

CONFIDENTIAL