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Added detail code for simplex noise implementation

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This commit is contained in:
Christophe Riccio 2011-04-13 22:30:20 +01:00
parent bbf97d0e23
commit b2ae0a3ce9
1 changed files with 35 additions and 0 deletions
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35
glm/core/func_noise.inl
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@ -12,6 +12,41 @@ namespace glm
namespace core{
namespace function{
namespace noise{
namespace detail
{
template <typenane valType, typenane vecType>
inline vecType permute
(
vecType const & x0,
detail::tvec3<valType> const & p
)
{
vecType x1 = mod(x0 * p.y, p.x);
return floor( mod( (x1 + p.z) *x0, p.x ));
}
inline detail::tvec2<T> permute
(
detail::tvec2<T> const & x0,
detail::tvec3<valType> const & p
)
{
vec2 x1 = mod(x0 * p.y, p.x);
return floor( mod( (x1 + p.z) *x0, p.x ));
}
inline vec3 permute(vec3 x0,vec3 p)
{
vec3 x1 = mod(x0 * p.y, p.x);
return floor( mod( (x1 + p.z) *x0, p.x ));
}
inline vec4 permute(vec4 x0,vec3 p)
{
vec4 x1 = mod(x0 * p.y, p.x);
return floor( mod( (x1 + p.z) *x0, p.x ));
}
}//namespace detail
// noise1
template <typename genType>