 float3[Class Summary] |
 x |
| y |
| z |
| zero[static][const] |
| one[static][const] |
| unitX[static][const] |
| unitY[static][const] |
| unitZ[static][const] |
| nan[static][const] |
| inf[static][const] |
 ctor (+4 overloads) |
| ptr() (+1 overload) |
 operator[](index) (+1 overload) |
| At(index) (+1 overload) |
| operators +,-,*,/(v)[const] (+1 overload) |
| operators +=,-=,*=,/=(v) |
| Add/Sub/Mul/Div(v)[const] (+1 overload) |
| xx/xy/xz/..()[const] |
| xyz/xzy/yzx/..()[const] |
| Swizzled(i,j,k,l)[const] (+2 overloads) |
| SetFromScalar(scalar) |
| Set(x,y,z) |
| SetFromSphericalCoordinates(...) (+2 overloads) |
| ToPos4()[const] |
| ToDir4()[const] |
| ToSphericalCoordinates()[const] |
| ToSphericalCoordinatesNormalized()[const] |
| Length()[const] |
| LengthSq()[const] |
| Normalize() |
| Normalized()[const] |
| ScaleToLength(newLength) |
| ScaledToLength(newLength)[const] |
| IsNormalized(epsilonSq)[const] |
| IsZero(epsilonSq)[const] |
| IsFinite()[const] |
| IsPerpendicular(other,epsilonSq)[const] |
| Equals(other,epsilon)[const] (+1 overload) |
| BitEquals(other)[const] |
| ToString()[const] |
| SerializeToString()[const] |
| SerializeToCodeString()[const] |
| SumOfElements()[const] |
| ProductOfElements()[const] |
| AverageOfElements()[const] |
| MinElement()[const] |
| MinElementIndex()[const] |
| MaxElement()[const] |
| MaxElementIndex()[const] |
| Abs()[const] |
| Neg()[const] |
| Recip()[const] |
| Min(ceil)[const] (+1 overload) |
| Max(floor)[const] (+1 overload) |
| Clamp(floor,ceil)[const] (+1 overload) |
| Clamp01()[const] |
| ClampLength(maxLength)[const] (+1 overload) |
| Distance(point)[const] (+9 overloads) |
| DistanceSq(point)[const] |
| Dot(v)[const] |
| Cross(v)[const] |
| OuterProduct(rhs)[const] |
| Perpendicular(hint,hint2)[const] |
| AnotherPerpendicular(hint,hint2)[const] |
| PerpendicularBasis(outB,outC)[const] |
| RandomPerpendicular(rng)[const] |
| Reflect(normal)[const] |
| Refract(...)[const] |
| ProjectTo(direction)[const] |
| ProjectToNorm(direction)[const] |
| AngleBetween(other)[const] |
| AngleBetweenNorm(normalizedVector)[const] |
| Decompose(...)[const] |
| Lerp(b,t)[const] |
| FromScalar(scalar)[static] |
| FromSphericalCoordinates(...)[static] (+2 overloads) |
| AreCollinear(p1,p2,p3,epsilonSq)[static] |
| FromString(str,outEndStr)[static] (+1 overload) |
| ScalarTripleProduct(u,v,w)[static] |
| Lerp(a,b,t)[static] |
| Orthogonalize(a,b)[static] (+1 overload) |
| AreOrthogonal(a,b,epsilon)[static] (+1 overload) |
| Orthonormalize(a,b)[static] (+1 overload) |
| AreOrthonormal(a,b,epsilon)[static] (+1 overload) |
| RandomDir(lcg,length)[static] |
| RandomSphere(lcg,center,radius)[static] |
| RandomBox(...)[static] (+2 overloads) |
| RandomGeneral(...)[static] |
float3::Refract
Syntax
float3 float3::Refract(const float3 &normal, float negativeSideRefractionIndex, float positiveSideRefractionIndex) const; [10 lines of code]Refracts this vector about a plane with the given normal.
Implementation from http://www.flipcode.com/archives/reflection_transmission.pdf .
By convention, the this vector points towards the plane, and the returned vector points away from the plane. When the ray is going from a denser material to a lighter one, total internal reflection can occur. In this case, this function will just return a reflected vector from a call to Reflect().
Parameters
const float3 &normalSpecifies the plane normal direction floatnegativeSideRefractionIndexThe refraction index of the material we are exiting. floatpositiveSideRefractionIndexThe refraction index of the material we are entering.