BlackMATov/vmath.hpp
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add rotate3, shear3

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BlackMATov
2021-02-27 06:39:31 +07:00
parent e06d009cdb
commit 26158cbcc3
4 changed files with 98 additions and 29 deletions
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68
headers/vmath.hpp/vmath_ext.hpp
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@@ -543,6 +543,16 @@ namespace vmath_hpp
return m * rotate(angle);
}
template < typename T >
[[nodiscard]] constexpr mat<T, 3> rotate3(T angle) {
return mat<T, 3>(rotate(angle));
}
template < typename T >
[[nodiscard]] constexpr mat<T, 3> rotate3(const mat<T, 3>& m, T angle) {
return m * rotate3(angle);
}
// scale
template < typename T >
@@ -564,13 +574,7 @@ namespace vmath_hpp
template < typename T >
[[nodiscard]] constexpr mat<T, 3> scale3(const vec<T, 2>& v) {
/// REFERENCE:
/// https://en.wikipedia.org/wiki/Scaling_(geometry)
return {
{ v.x, T{0}, T{0} },
{ T{0}, v.y, T{0} },
{ T{0}, T{0}, T{1} }};
return mat<T, 3>(scale(v));
}
template < typename T >
@@ -581,23 +585,13 @@ namespace vmath_hpp
// shear
template < typename T >
[[nodiscard]] constexpr mat<T, 2> shear(T x, T y) {
[[nodiscard]] constexpr mat<T, 2> shear(const vec<T, 2>& v) {
/// REFERENCE:
/// https://en.wikipedia.org/wiki/Shear_matrix
return {
{ T{1}, y },
{ x, T{1} }};
}
template < typename T >
[[nodiscard]] constexpr mat<T, 2> shear(const mat<T, 2>& m, T x, T y) {
return m * shear(x, y);
}
template < typename T >
[[nodiscard]] constexpr mat<T, 2> shear(const vec<T, 2>& v) {
return shear(v.x, v.y);
{ T{1}, v.y },
{ v.x, T{1} }};
}
template < typename T >
@@ -605,6 +599,18 @@ namespace vmath_hpp
return m * shear(v);
}
template < typename T >
[[nodiscard]] constexpr mat<T, 3> shear3(const vec<T, 2>& v) {
return mat<T, 3>(shear(v));
}
template < typename T >
[[nodiscard]] constexpr mat<T, 3> shear3(const mat<T, 3>& m, const vec<T, 2>& v) {
return m * shear3(v);
}
// shear_x
template < typename T >
[[nodiscard]] constexpr mat<T, 2> shear_x(T x) {
/// REFERENCE:
@@ -620,6 +626,18 @@ namespace vmath_hpp
return m * shear_x(x);
}
template < typename T >
[[nodiscard]] constexpr mat<T, 3> shear3_x(T x) {
return mat<T, 3>(shear_x(x));
}
template < typename T >
[[nodiscard]] constexpr mat<T, 3> shear3_x(const mat<T, 3>& m, T x) {
return m * shear3_x(x);
}
// shear_y
template < typename T >
[[nodiscard]] constexpr mat<T, 2> shear_y(T y) {
/// REFERENCE:
@@ -634,6 +652,16 @@ namespace vmath_hpp
[[nodiscard]] constexpr mat<T, 2> shear_y(const mat<T, 2>& m, T y) {
return m * shear_y(y);
}
template < typename T >
[[nodiscard]] constexpr mat<T, 3> shear3_y(T y) {
return mat<T, 3>(shear_y(y));
}
template < typename T >
[[nodiscard]] constexpr mat<T, 3> shear3_y(const mat<T, 3>& m, T y) {
return m * shear3_y(y);
}
}
//