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Set fov sin/cos

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Implemented CG_FrustumCullSphere (from BT code)
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smallmodel 2023-07-15 20:40:57 +02:00
parent 89b2c9be9d
commit c05403d5d3
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1 changed files with 36 additions and 1 deletions
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37
code/cgame/cg_view.c
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@ -496,6 +496,10 @@ static int CG_CalcFov(void)
// set it // set it
cg.refdef.fov_x = fov_x; cg.refdef.fov_x = fov_x;
cg.refdef.fov_y = fov_y; cg.refdef.fov_y = fov_y;
cg.fRefFovXCos = cos(fov_x / 114.0f);
cg.fRefFovXSin = sin(fov_x / 114.0f);
cg.fRefFovYCos = cos(fov_y / 114.0f);
cg.fRefFovYSin = sin(fov_y / 114.0f);
cg.zoomSensitivity = cg.refdef.fov_y / 75.0; cg.zoomSensitivity = cg.refdef.fov_y / 75.0;
return inwater; return inwater;
} }
@ -674,7 +678,38 @@ void CG_AddLightShow()
} }
qboolean CG_FrustumCullSphere(const vec3_t vPos, float fRadius) { qboolean CG_FrustumCullSphere(const vec3_t vPos, float fRadius) {
// FIXME: unimplemented vec3_t delta;
float fDotFwd, fDotSide, fDotUp;
VectorSubtract(vPos, cg.refdef.vieworg, delta);
fDotFwd = DotProduct(delta, cg.refdef.viewaxis[0]);
if (-fRadius >= fDotFwd) {
return qtrue;
}
if (cg.refdef.farplane_distance && cg.refdef.farplane_distance + fRadius <= fDotFwd) {
return qtrue;
}
fDotSide = DotProduct(delta, cg.refdef.viewaxis[1]);
if (fDotSide < 1.f) {
fDotSide = -fDotSide;
}
if (fDotSide * cg.fRefFovXCos - fDotFwd * cg.fRefFovXSin >= fRadius) {
return qtrue;
}
fDotUp = DotProduct(delta, cg.refdef.viewaxis[2]);
if (fDotUp < 0.f) {
fDotUp = -fDotUp;
}
if (fDotUp * cg.fRefFovYCos - fDotFwd * cg.fRefFovYSin >= fRadius) {
return qtrue;
}
return qfalse; return qfalse;
} }