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 Drive
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guOrthoFormat#include "gu.h" void guOrtho(Mtx m, float l, float r, float b, float t, float n, float f, float scale)Arguments
It computes and returns an orthographic 4x4 fixed-point projection matrix for an orthographic parallel viewing volume. The near clipping plane is a rectangle with the lower-left corner at (l, b, -n) and the upper-right corner at (r, t, -n). The far clipping plane is a rectangle with corners at (l, b, -f) and (r, t, -f). Both near and far (n and f) can be positive or negative. For a detailed description of the fixed-point matrix format, see gSPMatrix. Note The near and far planes are specified slightly differently here than they are in the guPerspective function. Here they represent z-planes in world space; in guPerspective they are distances that are always positive. Larger separations between the near and far planes decrease the z resolution for Z-Buffering. See Also guOrthoF guFrustum guPerspective guLookAt gSPMatrix glOrtho(3G)
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