'Sphere r2' diaporamas de présentation

Intersecting a Bounding Sphere

Intersecting a Bounding Sphere. float intersectRaySphere (Ray ray,Sphere sphere) { Vec dst = ray.o - sphere.o ; Real B = dot( dst,ray.d ); Real C = dot( dst,dst ) - sphere.r2; Real D = B*B - C; return D > 0 ? - B - sqrt (D) : std:: numeric_limits <float>::infinity(); }. Quaternions.

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