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al - Audio Library Functions gDP - DP GBI Macros gdSP - General GBI Macros gSP - SP GBI Macros gt - Turbo Microcode RDP gu - Graphics Utilities Math - Math Functions nuSys - NuSystem os - N64 Operating System sp - Sprite Library Functions uh - Host to Target IO 64DD - N64 Disk DriveNintendo® Confidential |
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guPerspectiveF
Format#include "gu.h" void guPerspectiveF(float m[4][4], u16 *perspNorm, float fovy, float aspect, float near, float far, float scale)Arguments
- m is the resulting 4x4 projection matrix
- perspNorm is the pointer to the value to use with the gSPPerspNormalize function
- fovy is field of view angle, in degrees, in the y direction
- aspect is the aspect ratio that determines the field of view in the x direction. The aspect ratio is the ratio of x (width) to y (height) of the viewport region
- near, far specify the distance from the viewer to the near and far clipping plane (always positive)
- scale gives the scale of each element of the matrix. You can use it to improve precision in the RSP fixed-point arithmetic
It computes and returns a 4x4 floating-point perspective projection matrix (m) and a number to use with the gSPPerspNormalize function.
See Also
guPerspective
guFrustum
guOrtho
gSPMatrix
gSPPerspNormalize
gluPerspective(3G)
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Nintendo® Confidential Warning: all information in this document is confidential and covered by a non-disclosure agreement. You are responsible for keeping this information confidential and protected. Nintendo will vigorously enforce this responsibility. Copyright © 1998 Nintendo of America Inc. All rights reserved Nintendo and N64 are registered trademarks of Nintendo Last updated January 1998 |