From 90ad883d9edc1fddfb6ec56f313a2ede36c4a4ce Mon Sep 17 00:00:00 2001 From: Christophe Riccio Date: Tue, 1 Apr 2014 22:38:43 +0200 Subject: [PATCH] Added glm.g-truc.net code samples --- glm/detail/dummy.cpp | 272 ++++++++++++++++++++++++++++++------------- 1 file changed, 190 insertions(+), 82 deletions(-) diff --git a/glm/detail/dummy.cpp b/glm/detail/dummy.cpp index a95afcd3..98ca022c 100644 --- a/glm/detail/dummy.cpp +++ b/glm/detail/dummy.cpp @@ -1,82 +1,190 @@ -/////////////////////////////////////////////////////////////////////////////////// -/// OpenGL Mathematics (glm.g-truc.net) -/// -/// Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net) -/// Permission is hereby granted, free of charge, to any person obtaining a copy -/// of this software and associated documentation files (the "Software"), to deal -/// in the Software without restriction, including without limitation the rights -/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -/// copies of the Software, and to permit persons to whom the Software is -/// furnished to do so, subject to the following conditions: -/// -/// The above copyright notice and this permission notice shall be included in -/// all copies or substantial portions of the Software. -/// -/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -/// 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 -/// THE SOFTWARE. -/// -/// @ref core -/// @file glm/core/dummy.cpp -/// @date 2011-01-19 / 2011-06-15 -/// @author Christophe Riccio -/// -/// GLM is a header only library. There is nothing to compile. -/// dummy.cpp exist only a wordaround for CMake file. -/////////////////////////////////////////////////////////////////////////////////// - -#define GLM_FORCE_RADIANS -#define GLM_MESSAGES -#include "../glm.hpp" -#include -/* -#if(GLM_ARCH & GLM_ARCH_SSE2) -struct float4 -{ - union - { - struct {float r, g, b, a;}; - struct {float s, t, p, q;}; - struct {float x, y, z, w;}; - __m128 data; - }; -}; - -int test_simd() -{ - float4 f; - - - - return 0; -} - -#endif//GLM_ARCH -*/ - -template -class C; - -template -class C -{ -public: - T value; -}; - -int main() -{ -/* -# if(GLM_ARCH & GLM_ARCH_SSE2) - test_simd(); -# endif -*/ - - C<> c; - - return 0; -} +/////////////////////////////////////////////////////////////////////////////////// +/// OpenGL Mathematics (glm.g-truc.net) +/// +/// Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net) +/// Permission is hereby granted, free of charge, to any person obtaining a copy +/// of this software and associated documentation files (the "Software"), to deal +/// in the Software without restriction, including without limitation the rights +/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +/// copies of the Software, and to permit persons to whom the Software is +/// furnished to do so, subject to the following conditions: +/// +/// The above copyright notice and this permission notice shall be included in +/// all copies or substantial portions of the Software. +/// +/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +/// 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 +/// THE SOFTWARE. +/// +/// @ref core +/// @file glm/core/dummy.cpp +/// @date 2011-01-19 / 2011-06-15 +/// @author Christophe Riccio +/// +/// GLM is a header only library. There is nothing to compile. +/// dummy.cpp exist only a wordaround for CMake file. +/////////////////////////////////////////////////////////////////////////////////// + +#define GLM_FORCE_RADIANS +#define GLM_MESSAGES +#include "../glm.hpp" +#include + +struct material +{ + glm::vec4 emission; // Ecm + glm::vec4 ambient; // Acm + glm::vec4 diffuse; // Dcm + glm::vec4 specular; // Scm + float shininess; // Srm +}; +struct light +{ + glm::vec4 ambient; // Acli + glm::vec4 diffuse; // Dcli + glm::vec4 specular; // Scli + glm::vec4 position; // Ppli + glm::vec4 halfVector; // Derived: Hi + glm::vec3 spotDirection; // Sdli + float spotExponent; // Srli + float spotCutoff; // Crli + // (range: [0.0,90.0], 180.0) + float spotCosCutoff; // Derived: cos(Crli) + // (range: [1.0,0.0],-1.0) + float constantAttenuation; // K0 + float linearAttenuation; // K1 + float quadraticAttenuation;// K2 +}; + +// Sample 1 +#include // glm::vec3 +#include // glm::cross, glm::normalize + +glm::vec3 computeNormal +( + glm::vec3 const & a, + glm::vec3 const & b, + glm::vec3 const & c +) +{ + return glm::normalize(glm::cross(c - a, b - a)); +} + +typedef unsigned int GLuint; +#define GL_FALSE 0 +void glUniformMatrix4fv(GLuint, int, int, float*){} + +// Sample 2 +#include // glm::vec3 +#include // glm::vec4, glm::ivec4 +#include // glm::mat4 +#include // glm::translate, glm::rotate, glm::scale, glm::perspective +#include // glm::value_ptr +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 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 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 MVP = Projection * View * Model; + glUniformMatrix4fv(LocationMVP, 1, GL_FALSE, glm::value_ptr(MVP)); +} + +// Sample 3 +#include // glm::vec2 +#include // glm::packUnorm2x16 +#include // glm::uint +#include // glm::i8vec2, glm::i32vec2 +std::size_t const VertexCount = 4; +// Float quad geometry +std::size_t const PositionSizeF32 = VertexCount * sizeof(glm::vec2); +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) + }; +// Half-float quad geometry +std::size_t const PositionSizeF16 = VertexCount * sizeof(glm::uint); +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))) +}; +// 8 bits signed integer quad geometry +std::size_t const PositionSizeI8 = VertexCount * sizeof(glm::i8vec2); +glm::i8vec2 const PositionDataI8[VertexCount] = +{ + glm::i8vec2(-1,-1), + glm::i8vec2( 1,-1), + glm::i8vec2( 1, 1), + glm::i8vec2(-1, 1) +}; +// 32 bits signed integer quad geometry +std::size_t const PositionSizeI32 = VertexCount * sizeof(glm::i32vec2); +glm::i32vec2 const PositionDataI32[VertexCount] = +{ + glm::i32vec2 (-1,-1), + glm::i32vec2 ( 1,-1), + glm::i32vec2 ( 1, 1), + glm::i32vec2 (-1, 1) +}; + +struct intersection +{ + glm::vec4 position; + glm::vec3 normal; +}; + +/* +// Sample 4 +#include // glm::vec3 +#include // glm::normalize, glm::dot, glm::reflect +#include // glm::pow +#include // glm::vecRand3 +glm::vec3 lighting +( + intersection const & Intersection, + material const & Material, + light const & Light, + glm::vec3 const & View +) +{ + glm::vec3 Color(0.0f); + glm::vec3 LightVertor(glm::normalize( + Light.position - Intersection.position + + glm::vecRand3(0.0f, Light.inaccuracy)); + + if(!shadow(Intersection.position, Light.position, LightVertor)) + { + float Diffuse = glm::dot(Intersection.normal, LightVector); + if(Diffuse <= 0.0f) + return Color; + if(Material.isDiffuse()) + Color += Light.color() * Material.diffuse * Diffuse; + if(Material.isSpecular()) + { + glm::vec3 Reflect(glm::reflect( + glm::normalize(-LightVector), + glm::normalize(Intersection.normal))); + float Dot = glm::dot(Reflect, View); + float Base = Dot > 0.0f ? Dot : 0.0f; + float Specular = glm::pow(Base, Material.exponent); + Color += Material.specular * Specular; + } + } + return Color; +} +*/ +int main() +{ + return 0; +}