Added glm.g-truc.net code samples

glm/detail/dummy.cpp

@@ -33,50 +33,158 @@
 #define GLM_MESSAGES
 #include "../glm.hpp"
 #include <limits>
-/*
+
-#if(GLM_ARCH & GLM_ARCH_SSE2)
+struct material
-struct float4
-{
-	union
 {
-		struct {float r, g, b, a;};
+	glm::vec4 emission; // Ecm
-		struct {float s, t, p, q;};
+	glm::vec4 ambient; // Acm
-		struct {float x, y, z, w;};
+	glm::vec4 diffuse; // Dcm
-		__m128 data;
+	glm::vec4 specular; // Scm
-	};
+	float shininess; // Srm
 };
-
+struct light
-int test_simd()
 {
-	float4 f;
+	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.hpp>// glm::vec3
+#include <glm/geometric.hpp>// glm::cross, glm::normalize
 
-	return 0;
+glm::vec3 computeNormal
+(
+	glm::vec3 const & a,
+	glm::vec3 const & b,
+	glm::vec3 const & c
+)
+{
+	return glm::normalize(glm::cross(c - a, b - a));
 }
 
-#endif//GLM_ARCH
+typedef unsigned int GLuint;
-*/
+#define GL_FALSE 0
+void glUniformMatrix4fv(GLuint, int, int, float*){}
 
-template <class T = int>
+// Sample 2
-class C;
+#include <glm/vec3.hpp> // glm::vec3
+#include <glm/vec4.hpp> // glm::vec4, glm::ivec4
+#include <glm/mat4x4.hpp> // glm::mat4
+#include <glm/gtc/matrix_transform.hpp> // glm::translate, glm::rotate, glm::scale, glm::perspective
+#include <glm/gtc/type_ptr.hpp> // 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));
+}
 
-template <class T>
+// Sample 3
-class C
+#include <glm/vec2.hpp>// glm::vec2
+#include <glm/packing.hpp>// glm::packUnorm2x16
+#include <glm/integer.hpp>// glm::uint
+#include <glm/gtc/type_precision.hpp>// 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] =
 {
-public:
+	glm::i8vec2(-1,-1),
-	T value;
+	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)
 };
 
-int main()
+struct intersection
 {
-/*
+	glm::vec4 position;
-#	if(GLM_ARCH & GLM_ARCH_SSE2)
+	glm::vec3 normal;
-		test_simd();
+};
-#	endif
-*/ 
 
-	C<> c;
+/*
+// Sample 4
+#include <glm/vec3.hpp>// glm::vec3
+#include <glm/geometric.hpp>// glm::normalize, glm::dot, glm::reflect
+#include <glm/exponential.hpp>// glm::pow
+#include <glm/gtc/random.hpp>// 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;
 }