diff options
author | Jacques Lucke <jacques@blender.org> | 2020-04-21 17:55:00 +0300 |
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committer | Jacques Lucke <jacques@blender.org> | 2020-04-21 17:57:00 +0300 |
commit | 0e52b91f97bcb800dc4f07f93f7f07e1cf9cab1c (patch) | |
tree | 10ec4ac1f287c8a6f816874b03cc960418ff700f /source/blender/blenlib/BLI_float3.hh | |
parent | 805c52b1fdb5ac6a0caf8276bf0d13c324c57716 (diff) |
BLI: add float2, float3, float4x4, Color4f and Color4b
Reviewers: brecht, campbellbarton, sergey
Differential Revision: https://developer.blender.org/D7450
Diffstat (limited to 'source/blender/blenlib/BLI_float3.hh')
-rw-r--r-- | source/blender/blenlib/BLI_float3.hh | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_float3.hh b/source/blender/blenlib/BLI_float3.hh new file mode 100644 index 00000000000..9678fa4b2d3 --- /dev/null +++ b/source/blender/blenlib/BLI_float3.hh @@ -0,0 +1,218 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __BLI_FLOAT3_HH__ +#define __BLI_FLOAT3_HH__ + +#include <iostream> + +#include "BLI_math_vector.h" + +namespace BLI { + +struct float3 { + float x, y, z; + + float3() = default; + + float3(const float *ptr) : x{ptr[0]}, y{ptr[1]}, z{ptr[2]} + { + } + + float3(const float (*ptr)[3]) : float3((const float *)ptr) + { + } + + explicit float3(float value) : x(value), y(value), z(value) + { + } + + explicit float3(int value) : x(value), y(value), z(value) + { + } + + float3(float x, float y, float z) : x{x}, y{y}, z{z} + { + } + + operator const float *() const + { + return &x; + } + + operator float *() + { + return &x; + } + + float normalize_and_get_length() + { + return normalize_v3(*this); + } + + float3 normalized() const + { + float3 result; + normalize_v3_v3(result, *this); + return result; + } + + float length() const + { + return len_v3(*this); + } + + float length_squared() const + { + return len_squared_v3(*this); + } + + void reflect(const float3 &normal) + { + *this = this->reflected(normal); + } + + float3 reflected(const float3 &normal) const + { + float3 result; + reflect_v3_v3v3(result, *this, normal); + return result; + } + + static float3 safe_divide(const float3 &a, const float3 &b) + { + float3 result; + result.x = (b.x == 0.0f) ? 0.0f : a.x / b.x; + result.y = (b.y == 0.0f) ? 0.0f : a.y / b.y; + result.z = (b.z == 0.0f) ? 0.0f : a.z / b.z; + return result; + } + + void invert() + { + x = -x; + y = -y; + z = -z; + } + + friend float3 operator+(const float3 &a, const float3 &b) + { + return {a.x + b.x, a.y + b.y, a.z + b.z}; + } + + void operator+=(const float3 &b) + { + this->x += b.x; + this->y += b.y; + this->z += b.z; + } + + friend float3 operator-(const float3 &a, const float3 &b) + { + return {a.x - b.x, a.y - b.y, a.z - b.z}; + } + + friend float3 operator-(const float3 &a) + { + return {-a.x, -a.y, -a.z}; + } + + void operator-=(const float3 &b) + { + this->x -= b.x; + this->y -= b.y; + this->z -= b.z; + } + + void operator*=(float scalar) + { + this->x *= scalar; + this->y *= scalar; + this->z *= scalar; + } + + void operator*=(const float3 &other) + { + this->x *= other.x; + this->y *= other.y; + this->z *= other.z; + } + + friend float3 operator*(const float3 &a, const float3 &b) + { + return {a.x * b.x, a.y * b.y, a.z * b.z}; + } + + friend float3 operator*(const float3 &a, float b) + { + return {a.x * b, a.y * b, a.z * b}; + } + + friend float3 operator*(float a, const float3 &b) + { + return b * a; + } + + friend float3 operator/(const float3 &a, float b) + { + BLI_assert(b != 0.0f); + return {a.x / b, a.y / b, a.z / b}; + } + + friend std::ostream &operator<<(std::ostream &stream, const float3 &v) + { + stream << "(" << v.x << ", " << v.y << ", " << v.z << ")"; + return stream; + } + + static float dot(const float3 &a, const float3 &b) + { + return a.x * b.x + a.y * b.y + a.z * b.z; + } + + static float3 cross_high_precision(const float3 &a, const float3 &b) + { + float3 result; + cross_v3_v3v3_hi_prec(result, a, b); + return result; + } + + static float3 project(const float3 &a, const float3 &b) + { + float3 result; + project_v3_v3v3(result, a, b); + return result; + } + + static float distance(const float3 &a, const float3 &b) + { + return (a - b).length(); + } + + static float distance_squared(const float3 &a, const float3 &b) + { + return float3::dot(a, b); + } + + static float3 interpolate(const float3 &a, const float3 &b, float t) + { + return a * (1 - t) + b * t; + } +}; + +} // namespace BLI + +#endif /* __BLI_FLOAT3_HH__ */ |