mirror of
https://github.com/g-truc/glm.git
synced 2024-11-22 17:04:35 +00:00
Christophe R.
commit
5ddeedc02c
@ -1,232 +1,232 @@
|
|||||||
///////////////////////////////////////////////////////////////////////////////////
|
///////////////////////////////////////////////////////////////////////////////////
|
||||||
/// OpenGL Mathematics (glm.g-truc.net)
|
/// OpenGL Mathematics (glm.g-truc.net)
|
||||||
///
|
///
|
||||||
/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net)
|
/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net)
|
||||||
/// Permission is hereby granted, free of charge, to any person obtaining a copy
|
/// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
/// of this software and associated documentation files (the "Software"), to deal
|
/// of this software and associated documentation files (the "Software"), to deal
|
||||||
/// in the Software without restriction, including without limitation the rights
|
/// in the Software without restriction, including without limitation the rights
|
||||||
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
/// copies of the Software, and to permit persons to whom the Software is
|
/// copies of the Software, and to permit persons to whom the Software is
|
||||||
/// furnished to do so, subject to the following conditions:
|
/// furnished to do so, subject to the following conditions:
|
||||||
///
|
///
|
||||||
/// The above copyright notice and this permission notice shall be included in
|
/// The above copyright notice and this permission notice shall be included in
|
||||||
/// all copies or substantial portions of the Software.
|
/// all copies or substantial portions of the Software.
|
||||||
///
|
///
|
||||||
/// Restrictions:
|
/// Restrictions:
|
||||||
/// By making use of the Software for military purposes, you choose to make
|
/// By making use of the Software for military purposes, you choose to make
|
||||||
/// a Bunny unhappy.
|
/// a Bunny unhappy.
|
||||||
///
|
///
|
||||||
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||||
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||||
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||||
/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||||
/// THE SOFTWARE.
|
/// THE SOFTWARE.
|
||||||
///
|
///
|
||||||
/// @ref core
|
/// @ref core
|
||||||
/// @file glm/core/dummy.cpp
|
/// @file glm/core/dummy.cpp
|
||||||
/// @date 2011-01-19 / 2011-06-15
|
/// @date 2011-01-19 / 2011-06-15
|
||||||
/// @author Christophe Riccio
|
/// @author Christophe Riccio
|
||||||
///
|
///
|
||||||
/// GLM is a header only library. There is nothing to compile.
|
/// GLM is a header only library. There is nothing to compile.
|
||||||
/// dummy.cpp exist only a wordaround for CMake file.
|
/// dummy.cpp exist only a wordaround for CMake file.
|
||||||
///////////////////////////////////////////////////////////////////////////////////
|
///////////////////////////////////////////////////////////////////////////////////
|
||||||
|
|
||||||
#define GLM_MESSAGES
|
#define GLM_MESSAGES
|
||||||
#include <glm/glm.hpp>
|
#include <glm/glm.hpp>
|
||||||
#include <glm/ext.hpp>
|
#include <glm/ext.hpp>
|
||||||
#include <limits>
|
#include <limits>
|
||||||
|
|
||||||
struct material
|
struct material
|
||||||
{
|
{
|
||||||
glm::vec4 emission; // Ecm
|
glm::vec4 emission; // Ecm
|
||||||
glm::vec4 ambient; // Acm
|
glm::vec4 ambient; // Acm
|
||||||
glm::vec4 diffuse; // Dcm
|
glm::vec4 diffuse; // Dcm
|
||||||
glm::vec4 specular; // Scm
|
glm::vec4 specular; // Scm
|
||||||
float shininess; // Srm
|
float shininess; // Srm
|
||||||
};
|
};
|
||||||
|
|
||||||
struct light
|
struct light
|
||||||
{
|
{
|
||||||
glm::vec4 ambient; // Acli
|
glm::vec4 ambient; // Acli
|
||||||
glm::vec4 diffuse; // Dcli
|
glm::vec4 diffuse; // Dcli
|
||||||
glm::vec4 specular; // Scli
|
glm::vec4 specular; // Scli
|
||||||
glm::vec4 position; // Ppli
|
glm::vec4 position; // Ppli
|
||||||
glm::vec4 halfVector; // Derived: Hi
|
glm::vec4 halfVector; // Derived: Hi
|
||||||
glm::vec3 spotDirection; // Sdli
|
glm::vec3 spotDirection; // Sdli
|
||||||
float spotExponent; // Srli
|
float spotExponent; // Srli
|
||||||
float spotCutoff; // Crli
|
float spotCutoff; // Crli
|
||||||
// (range: [0.0,90.0], 180.0)
|
// (range: [0.0,90.0], 180.0)
|
||||||
float spotCosCutoff; // Derived: cos(Crli)
|
float spotCosCutoff; // Derived: cos(Crli)
|
||||||
// (range: [1.0,0.0],-1.0)
|
// (range: [1.0,0.0],-1.0)
|
||||||
float constantAttenuation; // K0
|
float constantAttenuation; // K0
|
||||||
float linearAttenuation; // K1
|
float linearAttenuation; // K1
|
||||||
float quadraticAttenuation;// K2
|
float quadraticAttenuation;// K2
|
||||||
};
|
};
|
||||||
|
|
||||||
|
|
||||||
// Sample 1
|
// Sample 1
|
||||||
#include <glm/vec3.hpp>// glm::vec3
|
#include <glm/vec3.hpp>// glm::vec3
|
||||||
#include <glm/geometric.hpp>// glm::cross, glm::normalize
|
#include <glm/geometric.hpp>// glm::cross, glm::normalize
|
||||||
|
|
||||||
glm::vec3 computeNormal
|
glm::vec3 computeNormal
|
||||||
(
|
(
|
||||||
glm::vec3 const & a,
|
glm::vec3 const & a,
|
||||||
glm::vec3 const & b,
|
glm::vec3 const & b,
|
||||||
glm::vec3 const & c
|
glm::vec3 const & c
|
||||||
)
|
)
|
||||||
{
|
{
|
||||||
return glm::normalize(glm::cross(c - a, b - a));
|
return glm::normalize(glm::cross(c - a, b - a));
|
||||||
}
|
}
|
||||||
|
|
||||||
typedef unsigned int GLuint;
|
typedef unsigned int GLuint;
|
||||||
#define GL_FALSE 0
|
#define GL_FALSE 0
|
||||||
void glUniformMatrix4fv(GLuint, int, int, float*){}
|
void glUniformMatrix4fv(GLuint, int, int, float*){}
|
||||||
|
|
||||||
// Sample 2
|
// Sample 2
|
||||||
#include <glm/vec3.hpp> // glm::vec3
|
#include <glm/vec3.hpp> // glm::vec3
|
||||||
#include <glm/vec4.hpp> // glm::vec4, glm::ivec4
|
#include <glm/vec4.hpp> // glm::vec4, glm::ivec4
|
||||||
#include <glm/mat4x4.hpp> // glm::mat4
|
#include <glm/mat4x4.hpp> // glm::mat4
|
||||||
#include <glm/gtc/matrix_transform.hpp> // glm::translate, glm::rotate, glm::scale, glm::perspective
|
#include <glm/gtc/matrix_transform.hpp> // glm::translate, glm::rotate, glm::scale, glm::perspective
|
||||||
#include <glm/gtc/type_ptr.hpp> // glm::value_ptr
|
#include <glm/gtc/type_ptr.hpp> // glm::value_ptr
|
||||||
void func(GLuint LocationMVP, float Translate, glm::vec2 const & Rotate)
|
void func(GLuint LocationMVP, float Translate, glm::vec2 const & Rotate)
|
||||||
{
|
{
|
||||||
glm::mat4 Projection = glm::perspective(45.0f, 4.0f / 3.0f, 0.1f, 100.f);
|
glm::mat4 Projection = glm::perspective(45.0f, 4.0f / 3.0f, 0.1f, 100.f);
|
||||||
glm::mat4 ViewTranslate = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, 0.0f, -Translate));
|
glm::mat4 ViewTranslate = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, 0.0f, -Translate));
|
||||||
glm::mat4 ViewRotateX = glm::rotate(ViewTranslate, Rotate.y, glm::vec3(-1.0f, 0.0f, 0.0f));
|
glm::mat4 ViewRotateX = glm::rotate(ViewTranslate, Rotate.y, glm::vec3(-1.0f, 0.0f, 0.0f));
|
||||||
glm::mat4 View = glm::rotate(ViewRotateX, Rotate.x, glm::vec3(0.0f, 1.0f, 0.0f));
|
glm::mat4 View = glm::rotate(ViewRotateX, Rotate.x, glm::vec3(0.0f, 1.0f, 0.0f));
|
||||||
glm::mat4 Model = glm::scale(glm::mat4(1.0f), glm::vec3(0.5f));
|
glm::mat4 Model = glm::scale(glm::mat4(1.0f), glm::vec3(0.5f));
|
||||||
glm::mat4 MVP = Projection * View * Model;
|
glm::mat4 MVP = Projection * View * Model;
|
||||||
glUniformMatrix4fv(LocationMVP, 1, GL_FALSE, glm::value_ptr(MVP));
|
glUniformMatrix4fv(LocationMVP, 1, GL_FALSE, glm::value_ptr(MVP));
|
||||||
}
|
}
|
||||||
|
|
||||||
// Sample 3
|
// Sample 3
|
||||||
#include <glm/vec2.hpp>// glm::vec2
|
#include <glm/vec2.hpp>// glm::vec2
|
||||||
#include <glm/packing.hpp>// glm::packUnorm2x16
|
#include <glm/packing.hpp>// glm::packUnorm2x16
|
||||||
#include <glm/integer.hpp>// glm::uint
|
#include <glm/integer.hpp>// glm::uint
|
||||||
#include <glm/gtc/type_precision.hpp>// glm::i8vec2, glm::i32vec2
|
#include <glm/gtc/type_precision.hpp>// glm::i8vec2, glm::i32vec2
|
||||||
std::size_t const VertexCount = 4;
|
std::size_t const VertexCount = 4;
|
||||||
// Float quad geometry
|
// Float quad geometry
|
||||||
std::size_t const PositionSizeF32 = VertexCount * sizeof(glm::vec2);
|
std::size_t const PositionSizeF32 = VertexCount * sizeof(glm::vec2);
|
||||||
glm::vec2 const PositionDataF32[VertexCount] =
|
glm::vec2 const PositionDataF32[VertexCount] =
|
||||||
{
|
{
|
||||||
glm::vec2(-1.0f,-1.0f),
|
glm::vec2(-1.0f,-1.0f),
|
||||||
glm::vec2( 1.0f,-1.0f),
|
glm::vec2( 1.0f,-1.0f),
|
||||||
glm::vec2( 1.0f, 1.0f),
|
glm::vec2( 1.0f, 1.0f),
|
||||||
glm::vec2(-1.0f, 1.0f)
|
glm::vec2(-1.0f, 1.0f)
|
||||||
};
|
};
|
||||||
// Half-float quad geometry
|
// Half-float quad geometry
|
||||||
std::size_t const PositionSizeF16 = VertexCount * sizeof(glm::uint);
|
std::size_t const PositionSizeF16 = VertexCount * sizeof(glm::uint);
|
||||||
glm::uint const PositionDataF16[VertexCount] =
|
glm::uint const PositionDataF16[VertexCount] =
|
||||||
{
|
{
|
||||||
glm::uint(glm::packUnorm2x16(glm::vec2(-1.0f, -1.0f))),
|
glm::uint(glm::packUnorm2x16(glm::vec2(-1.0f, -1.0f))),
|
||||||
glm::uint(glm::packUnorm2x16(glm::vec2( 1.0f, -1.0f))),
|
glm::uint(glm::packUnorm2x16(glm::vec2( 1.0f, -1.0f))),
|
||||||
glm::uint(glm::packUnorm2x16(glm::vec2( 1.0f, 1.0f))),
|
glm::uint(glm::packUnorm2x16(glm::vec2( 1.0f, 1.0f))),
|
||||||
glm::uint(glm::packUnorm2x16(glm::vec2(-1.0f, 1.0f)))
|
glm::uint(glm::packUnorm2x16(glm::vec2(-1.0f, 1.0f)))
|
||||||
};
|
};
|
||||||
// 8 bits signed integer quad geometry
|
// 8 bits signed integer quad geometry
|
||||||
std::size_t const PositionSizeI8 = VertexCount * sizeof(glm::i8vec2);
|
std::size_t const PositionSizeI8 = VertexCount * sizeof(glm::i8vec2);
|
||||||
glm::i8vec2 const PositionDataI8[VertexCount] =
|
glm::i8vec2 const PositionDataI8[VertexCount] =
|
||||||
{
|
{
|
||||||
glm::i8vec2(-1,-1),
|
glm::i8vec2(-1,-1),
|
||||||
glm::i8vec2( 1,-1),
|
glm::i8vec2( 1,-1),
|
||||||
glm::i8vec2( 1, 1),
|
glm::i8vec2( 1, 1),
|
||||||
glm::i8vec2(-1, 1)
|
glm::i8vec2(-1, 1)
|
||||||
};
|
};
|
||||||
// 32 bits signed integer quad geometry
|
// 32 bits signed integer quad geometry
|
||||||
std::size_t const PositionSizeI32 = VertexCount * sizeof(glm::i32vec2);
|
std::size_t const PositionSizeI32 = VertexCount * sizeof(glm::i32vec2);
|
||||||
glm::i32vec2 const PositionDataI32[VertexCount] =
|
glm::i32vec2 const PositionDataI32[VertexCount] =
|
||||||
{
|
{
|
||||||
glm::i32vec2 (-1,-1),
|
glm::i32vec2 (-1,-1),
|
||||||
glm::i32vec2 ( 1,-1),
|
glm::i32vec2 ( 1,-1),
|
||||||
glm::i32vec2 ( 1, 1),
|
glm::i32vec2 ( 1, 1),
|
||||||
glm::i32vec2 (-1, 1)
|
glm::i32vec2 (-1, 1)
|
||||||
};
|
};
|
||||||
|
|
||||||
struct intersection
|
struct intersection
|
||||||
{
|
{
|
||||||
glm::vec4 position;
|
glm::vec4 position;
|
||||||
glm::vec3 normal;
|
glm::vec3 normal;
|
||||||
};
|
};
|
||||||
|
|
||||||
/*
|
/*
|
||||||
// Sample 4
|
// Sample 4
|
||||||
#include <glm/vec3.hpp>// glm::vec3
|
#include <glm/vec3.hpp>// glm::vec3
|
||||||
#include <glm/geometric.hpp>// glm::normalize, glm::dot, glm::reflect
|
#include <glm/geometric.hpp>// glm::normalize, glm::dot, glm::reflect
|
||||||
#include <glm/exponential.hpp>// glm::pow
|
#include <glm/exponential.hpp>// glm::pow
|
||||||
#include <glm/gtc/random.hpp>// glm::vecRand3
|
#include <glm/gtc/random.hpp>// glm::vecRand3
|
||||||
glm::vec3 lighting
|
glm::vec3 lighting
|
||||||
(
|
(
|
||||||
intersection const & Intersection,
|
intersection const & Intersection,
|
||||||
material const & Material,
|
material const & Material,
|
||||||
light const & Light,
|
light const & Light,
|
||||||
glm::vec3 const & View
|
glm::vec3 const & View
|
||||||
)
|
)
|
||||||
{
|
{
|
||||||
glm::vec3 Color(0.0f);
|
glm::vec3 Color(0.0f);
|
||||||
glm::vec3 LightVertor(glm::normalize(
|
glm::vec3 LightVertor(glm::normalize(
|
||||||
Light.position - Intersection.position +
|
Light.position - Intersection.position +
|
||||||
glm::vecRand3(0.0f, Light.inaccuracy));
|
glm::vecRand3(0.0f, Light.inaccuracy));
|
||||||
|
|
||||||
if(!shadow(Intersection.position, Light.position, LightVertor))
|
if(!shadow(Intersection.position, Light.position, LightVertor))
|
||||||
{
|
{
|
||||||
float Diffuse = glm::dot(Intersection.normal, LightVector);
|
float Diffuse = glm::dot(Intersection.normal, LightVector);
|
||||||
if(Diffuse <= 0.0f)
|
if(Diffuse <= 0.0f)
|
||||||
return Color;
|
return Color;
|
||||||
if(Material.isDiffuse())
|
if(Material.isDiffuse())
|
||||||
Color += Light.color() * Material.diffuse * Diffuse;
|
Color += Light.color() * Material.diffuse * Diffuse;
|
||||||
if(Material.isSpecular())
|
if(Material.isSpecular())
|
||||||
{
|
{
|
||||||
glm::vec3 Reflect(glm::reflect(
|
glm::vec3 Reflect(glm::reflect(
|
||||||
glm::normalize(-LightVector),
|
glm::normalize(-LightVector),
|
||||||
glm::normalize(Intersection.normal)));
|
glm::normalize(Intersection.normal)));
|
||||||
float Dot = glm::dot(Reflect, View);
|
float Dot = glm::dot(Reflect, View);
|
||||||
float Base = Dot > 0.0f ? Dot : 0.0f;
|
float Base = Dot > 0.0f ? Dot : 0.0f;
|
||||||
float Specular = glm::pow(Base, Material.exponent);
|
float Specular = glm::pow(Base, Material.exponent);
|
||||||
Color += Material.specular * Specular;
|
Color += Material.specular * Specular;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
return Color;
|
return Color;
|
||||||
}
|
}
|
||||||
*/
|
*/
|
||||||
|
|
||||||
|
|
||||||
template <typename T, glm::precision P, template<typename, glm::precision> class vecType>
|
template <typename T, glm::precision P, template<typename, glm::precision> class vecType>
|
||||||
T normalizeDotA(vecType<T, P> const & x, vecType<T, P> const & y)
|
T normalizeDotA(vecType<T, P> const & x, vecType<T, P> const & y)
|
||||||
{
|
{
|
||||||
return glm::dot(x, y) * glm::inversesqrt(glm::dot(x, x) * glm::dot(y, y));
|
return glm::dot(x, y) * glm::inversesqrt(glm::dot(x, x) * glm::dot(y, y));
|
||||||
}
|
}
|
||||||
|
|
||||||
#define GLM_TEMPLATE_GENTYPE typename T, glm::precision P, template<typename, glm::precision> class
|
#define GLM_TEMPLATE_GENTYPE typename T, glm::precision P, template<typename, glm::precision> class
|
||||||
|
|
||||||
template <GLM_TEMPLATE_GENTYPE vecType>
|
template <GLM_TEMPLATE_GENTYPE vecType>
|
||||||
T normalizeDotB(vecType<T, P> const & x, vecType<T, P> const & y)
|
T normalizeDotB(vecType<T, P> const & x, vecType<T, P> const & y)
|
||||||
{
|
{
|
||||||
return glm::dot(x, y) * glm::inversesqrt(glm::dot(x, x) * glm::dot(y, y));
|
return glm::dot(x, y) * glm::inversesqrt(glm::dot(x, x) * glm::dot(y, y));
|
||||||
}
|
}
|
||||||
|
|
||||||
template <typename vecType>
|
template <typename vecType>
|
||||||
typename vecType::value_type normalizeDotC(vecType const & a, vecType const & b)
|
typename vecType::value_type normalizeDotC(vecType const & a, vecType const & b)
|
||||||
{
|
{
|
||||||
return glm::dot(a, b) * glm::inversesqrt(glm::dot(a, a) * glm::dot(b, b));
|
return glm::dot(a, b) * glm::inversesqrt(glm::dot(a, a) * glm::dot(b, b));
|
||||||
}
|
}
|
||||||
|
|
||||||
int main()
|
int main()
|
||||||
{
|
{
|
||||||
glm::vec1 o(1);
|
glm::vec1 o(1);
|
||||||
glm::vec2 a(1);
|
glm::vec2 a(1);
|
||||||
glm::vec3 b(1);
|
glm::vec3 b(1);
|
||||||
glm::vec4 c(1);
|
glm::vec4 c(1);
|
||||||
|
|
||||||
glm::quat q;
|
glm::quat q;
|
||||||
glm::dualquat p;
|
glm::dualquat p;
|
||||||
|
|
||||||
glm::mat4 m(1);
|
glm::mat4 m(1);
|
||||||
|
|
||||||
float a0 = normalizeDotA(a, a);
|
float a0 = normalizeDotA(a, a);
|
||||||
float b0 = normalizeDotB(b, b);
|
float b0 = normalizeDotB(b, b);
|
||||||
float c0 = normalizeDotC(c, c);
|
float c0 = normalizeDotC(c, c);
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user