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					@ -936,69 +936,35 @@ OpenGL 3.1 specification has deprecated some features that have been removed fro | 
				
			
			
		
	
		
			
				
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					***glRotate{f, d}:*** | 
				
			
			
		
	
		
			
				
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					```cpp | 
				
			
			
		
	
		
			
				
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					  glm::mat4 glm::rotate( | 
				
			
			
		
	
		
			
				
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					  > glm::mat4 const & m, | 
				
			
			
		
	
		
			
				
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					  > float angle, | 
				
			
			
		
	
		
			
				
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					  > glm::vec3 const & axis); | 
				
			
			
		
	
		
			
				
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					  glm::dmat4 glm::rotate( | 
				
			
			
		
	
		
			
				
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					  > glm::dmat4 const & m, | 
				
			
			
		
	
		
			
				
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					  > double angle, | 
				
			
			
		
	
		
			
				
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					  > glm::dvec3 const & axis); | 
				
			
			
		
	
		
			
				
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					glm::mat4 glm::rotate(glm::mat4 const& m, float angle, glm::vec3 const& axis); | 
				
			
			
		
	
		
			
				
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					glm::dmat4 glm::rotate(glm::dmat4 const& m, double angle, glm::dvec3 const& axis); | 
				
			
			
		
	
		
			
				
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					``` | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: | 
				
			
			
		
	
		
			
				
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					<glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: <glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					[***glScale{f, d}: ***](http://www.opengl.org/sdk/docs/man2/xhtml/glScale.xml) | 
				
			
			
		
	
		
			
				
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					```cpp | 
				
			
			
		
	
		
			
				
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					  glm::mat4 glm::scale( | 
				
			
			
		
	
		
			
				
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					  > glm::mat4 const & m, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
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					  > glm::vec3 const & factors); | 
				
			
			
		
	
		
			
				
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					  glm::dmat4 glm::scale( | 
				
			
			
		
	
		
			
				
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					  > glm::dmat4 const & m, | 
				
			
			
		
	
		
			
				
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					  > glm::dvec3 const & factors); | 
				
			
			
		
	
		
			
				
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					glm::mat4 glm::scale(glm::mat4 const& m, glm::vec3 const& factors); | 
				
			
			
		
	
		
			
				
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					glm::dmat4 glm::scale(glm::dmat4 const& m, glm::dvec3 const& factors); | 
				
			
			
		
	
		
			
				
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					``` | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: | 
				
			
			
		
	
		
			
				
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					<glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: <glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					***glTranslate{f, d}:*** | 
				
			
			
		
	
		
			
				
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					```cpp | 
				
			
			
		
	
		
			
				
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					  glm::mat4 glm::translate( | 
				
			
			
		
	
		
			
				
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					  > glm::mat4 const & m, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
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					  > glm::vec3 const & translation); | 
				
			
			
		
	
		
			
				
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					  glm::dmat4 glm::translate( | 
				
			
			
		
	
		
			
				
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					  > glm::dmat4 const & m, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
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					  > glm::dvec3 const & translation); | 
				
			
			
		
	
		
			
				
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					glm::mat4 glm::translate(glm::mat4 const& m, glm::vec3 const& translation); | 
				
			
			
		
	
		
			
				
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					glm::dmat4 glm::translate(glm::dmat4 const& m, glm::dvec3 const& translation); | 
				
			
			
		
	
		
			
				
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					``` | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: | 
				
			
			
		
	
		
			
				
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					<glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: <glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					***glLoadIdentity:*** | 
				
			
			
		
	
		
			
				
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					```cpp | 
				
			
			
		
	
		
			
				
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					    glm::mat4(1.0) or glm::mat4(); | 
				
			
			
		
	
		
			
				
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					    glm::dmat4(1.0) or glm::dmat4(); | 
				
			
			
		
	
		
			
				
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					glm::mat4(1.0) or glm::mat4(); | 
				
			
			
		
	
		
			
				
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					glm::dmat4(1.0) or glm::dmat4(); | 
				
			
			
		
	
		
			
				
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					``` | 
				
			
			
		
	
		
			
				
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					From GLM core library: <glm/glm.hpp> | 
				
			
			
		
	
	
		
			
				
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					@ -1006,8 +972,8 @@ From GLM core library: <glm/glm.hpp> | 
				
			
			
		
	
		
			
				
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					***glMultMatrix{f, d}: *** | 
				
			
			
		
	
		
			
				
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					```cpp | 
				
			
			
		
	
		
			
				
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					    glm::mat4() * glm::mat4(); | 
				
			
			
		
	
		
			
				
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					    glm::dmat4() * glm::dmat4(); | 
				
			
			
		
	
		
			
				
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					glm::mat4() * glm::mat4(); | 
				
			
			
		
	
		
			
				
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					glm::dmat4() * glm::dmat4(); | 
				
			
			
		
	
		
			
				
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					``` | 
				
			
			
		
	
		
			
				
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					From GLM core library: <glm/glm.hpp> | 
				
			
			
		
	
	
		
			
				
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					@ -1015,8 +981,8 @@ From GLM core library: <glm/glm.hpp> | 
				
			
			
		
	
		
			
				
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					***glLoadTransposeMatrix{f, d}: *** | 
				
			
			
		
	
		
			
				
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					```cpp | 
				
			
			
		
	
		
			
				
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					    glm::transpose(glm::mat4()); | 
				
			
			
		
	
		
			
				
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					    glm::transpose(glm::dmat4()); | 
				
			
			
		
	
		
			
				
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					glm::transpose(glm::mat4()); | 
				
			
			
		
	
		
			
				
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					glm::transpose(glm::dmat4()); | 
				
			
			
		
	
		
			
				
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					``` | 
				
			
			
		
	
		
			
				
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					From GLM core library: <glm/glm.hpp> | 
				
			
			
		
	
	
		
			
				
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					@ -1024,8 +990,8 @@ From GLM core library: <glm/glm.hpp> | 
				
			
			
		
	
		
			
				
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					***glMultTransposeMatrix{f, d}: *** | 
				
			
			
		
	
		
			
				
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					```cpp | 
				
			
			
		
	
		
			
				
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					    glm::mat4() * glm::transpose(glm::mat4()); | 
				
			
			
		
	
		
			
				
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					    glm::dmat4() * glm::transpose(glm::dmat4()); | 
				
			
			
		
	
		
			
				
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					glm::mat4() * glm::transpose(glm::mat4()); | 
				
			
			
		
	
		
			
				
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					glm::dmat4() * glm::transpose(glm::dmat4()); | 
				
			
			
		
	
		
			
				
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					``` | 
				
			
			
		
	
		
			
				
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					From GLM core library: <glm/glm.hpp> | 
				
			
			
		
	
	
		
			
				
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					@ -1033,183 +999,78 @@ From GLM core library: <glm/glm.hpp> | 
				
			
			
		
	
		
			
				
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					[***glFrustum:***](http://www.opengl.org/sdk/docs/man2/xhtml/glFrustum.xml) | 
				
			
			
		
	
		
			
				
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					```cpp | 
				
			
			
		
	
		
			
				
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					  glm::mat4 glm::frustum( | 
				
			
			
		
	
		
			
				
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					  > float left, float right, | 
				
			
			
		
	
		
			
				
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					  > float bottom, float top, | 
				
			
			
		
	
		
			
				
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					  > float zNear, float zFar); | 
				
			
			
		
	
		
			
				
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					  glm::dmat4 glm::frustum( | 
				
			
			
		
	
		
			
				
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					  > double left, double right, | 
				
			
			
		
	
		
			
				
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					  > double bottom, double top, | 
				
			
			
		
	
		
			
				
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					  > double zNear, double zFar); | 
				
			
			
		
	
		
			
				
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					glm::mat4 glm::frustum(float left, float right, float bottom, float top, float zNear, float zFar); | 
				
			
			
		
	
		
			
				
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					glm::dmat4 glm::frustum(double left, double right, double bottom, double top, double zNear, double zFar); | 
				
			
			
		
	
		
			
				
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					``` | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: | 
				
			
			
		
	
		
			
				
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					<glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: <glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					***glOrtho: *** | 
				
			
			
		
	
		
			
				
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					```cpp | 
				
			
			
		
	
		
			
				
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					  glm::mat4 glm::ortho( | 
				
			
			
		
	
		
			
				
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					  > float left, float right, | 
				
			
			
		
	
		
			
				
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					  > float bottom, float top, | 
				
			
			
		
	
		
			
				
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					  > float zNear, float zFar); | 
				
			
			
		
	
		
			
				
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					  glm::dmat4 glm::ortho( | 
				
			
			
		
	
		
			
				
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					  > double left, double right, | 
				
			
			
		
	
		
			
				
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					  > double bottom, double top, | 
				
			
			
		
	
		
			
				
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					  > double zNear, double zFar); | 
				
			
			
		
	
		
			
				
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					glm::mat4 glm::ortho(float left, float right, float bottom, float top, float zNear, float zFar); | 
				
			
			
		
	
		
			
				
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					glm::dmat4 glm::ortho(double left, double right, double bottom, double top, double zNear, double zFar); | 
				
			
			
		
	
		
			
				
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					``` | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: | 
				
			
			
		
	
		
			
				
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					<glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: <glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					### 5.2. GLM replacements for GLU functions <a name="section5_2"></a> | 
				
			
			
		
	
		
			
				
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					***gluLookAt: *** | 
				
			
			
		
	
		
			
				
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					```cpp | 
				
			
			
		
	
		
			
				
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					  glm::mat4 glm::lookAt( | 
				
			
			
		
	
		
			
				
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					  > glm::vec3 const & eye, | 
				
			
			
		
	
		
			
				
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					  > glm::vec3 const & center, | 
				
			
			
		
	
		
			
				
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					  > glm::vec3 const & up); | 
				
			
			
		
	
		
			
				
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					  glm::dmat4 glm::lookAt( | 
				
			
			
		
	
		
			
				
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					  > glm::dvec3 const & eye, | 
				
			
			
		
	
		
			
				
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					  > glm::dvec3 const & center, | 
				
			
			
		
	
		
			
				
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					  > glm::dvec3 const & up); | 
				
			
			
		
	
		
			
				
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					glm::mat4 glm::lookAt(glm::vec3 const& eye, glm::vec3 const& center, glm::vec3 const& up); | 
				
			
			
		
	
		
			
				
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					glm::dmat4 glm::lookAt(glm::dvec3 const& eye, glm::dvec3 const& center, glm::dvec3 const& up); | 
				
			
			
		
	
		
			
				
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					``` | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: | 
				
			
			
		
	
		
			
				
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					<glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: <glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					***gluOrtho2D: *** | 
				
			
			
		
	
		
			
				
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					```cpp | 
				
			
			
		
	
		
			
				
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					  glm::mat4 glm::ortho( | 
				
			
			
		
	
		
			
				
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					  float left, float right, float bottom, float top); | 
				
			
			
		
	
		
			
				
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					  glm::dmat4 glm::ortho( | 
				
			
			
		
	
		
			
				
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					  double left, double right, double bottom, double top); | 
				
			
			
		
	
		
			
				
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					glm::mat4 glm::ortho(float left, float right, float bottom, float top); | 
				
			
			
		
	
		
			
				
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					glm::dmat4 glm::ortho(double left, double right, double bottom, double top); | 
				
			
			
		
	
		
			
				
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					``` | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: | 
				
			
			
		
	
		
			
				
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					<glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: <glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					***gluPerspective: *** | 
				
			
			
		
	
		
			
				
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					```cpp | 
				
			
			
		
	
		
			
				
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					  glm::mat4 perspective( | 
				
			
			
		
	
		
			
				
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					  float fovy, float aspect, float zNear, float zFar); | 
				
			
			
		
	
		
			
				
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					  glm::dmat4 perspective( | 
				
			
			
		
	
		
			
				
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					  double fovy, double aspect, double zNear, double zFar); | 
				
			
			
		
	
		
			
				
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					glm::mat4 perspective(float fovy, float aspect, float zNear, float zFar); | 
				
			
			
		
	
		
			
				
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					glm::dmat4 perspective(double fovy, double aspect, double zNear, double zFar); | 
				
			
			
		
	
		
			
				
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					``` | 
				
			
			
		
	
		
			
				
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					One difference between GLM and GLU is that fovy is expressed in radians | 
				
			
			
		
	
		
			
				
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					in GLM instead of degrees. | 
				
			
			
		
	
		
			
				
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					One difference between GLM and GLU is that fovy is expressed in radians in GLM instead of degrees. | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: | 
				
			
			
		
	
		
			
				
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					<glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: <glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					***gluPickMatrix:*** | 
				
			
			
		
	
		
			
				
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					```cpp | 
				
			
			
		
	
		
			
				
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					  glm::mat4 pickMatrix( | 
				
			
			
		
	
		
			
				
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 | 
				
			
			
		
	
		
			
				
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					  > glm::vec2 const & center, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
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					  > glm::vec2 const & delta, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
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					  > glm::ivec4 const & viewport); | 
				
			
			
		
	
		
			
				
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					  glm::dmat4 pickMatrix( | 
				
			
			
		
	
		
			
				
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 | 
				
			
			
		
	
		
			
				
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					  > glm::dvec2 const & center, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
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					  > glm::dvec2 const & delta, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
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					  > glm::ivec4 const & viewport); | 
				
			
			
		
	
		
			
				
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					glm::mat4 pickMatrix(glm::vec2 const& center, glm::vec2 const& delta, glm::ivec4 const& viewport); | 
				
			
			
		
	
		
			
				
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					glm::dmat4 pickMatrix(glm::dvec2 const& center, glm::dvec2 const& delta, glm::ivec4 const& viewport); | 
				
			
			
		
	
		
			
				
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					``` | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: | 
				
			
			
		
	
		
			
				
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					<glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					From GLM\_GTC\_matrix\_transform extension: <glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
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					[**gluProject:**](http://www.opengl.org/sdk/docs/man2/xhtml/gluProject.xml) | 
				
			
			
		
	
		
			
				
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					```cpp | 
				
			
			
		
	
		
			
				
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					  glm::vec3 project( | 
				
			
			
		
	
		
			
				
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 | 
				
			
			
		
	
		
			
				
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					  > glm::vec3 const & obj, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
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					  > glm::mat4 const & model, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
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					  > glm::mat4 const & proj, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
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					  > glm::{i, ' '}vec4 const & viewport); | 
				
			
			
		
	
		
			
				
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 | 
				
			
			
		
	
		
			
				
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					  glm::dvec3 project( | 
				
			
			
		
	
		
			
				
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 | 
				
			
			
		
	
		
			
				
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					  > glm::dvec3 const & obj, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
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					  > glm::dmat4 const & model, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
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					  > glm::dmat4 const & proj, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
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					  > glm::{i, ' ', d}vec4 const & viewport); | 
				
			
			
		
	
		
			
				
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					glm::vec3 project(glm::vec3 const& obj, glm::mat4 const& model, glm::mat4 const & proj, glm::ivec4 const& viewport); | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
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					glm::dvec3 project(glm::dvec3 const& obj, glm::dmat4 const & model, glm::dmat4 const & proj, glm::ivec4 const& viewport); | 
				
			
			
		
	
		
			
				
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					``` | 
				
			
			
		
	
		
			
				
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 | 
				
			
			
		
	
		
			
				
					 | 
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				 | 
				
					From GLM\_GTC\_matrix\_transform extension: | 
				
			
			
		
	
		
			
				
					 | 
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					<glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
					 | 
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					From GLM\_GTC\_matrix\_transform extension: <glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
					 | 
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 | 
				
			
			
		
	
		
			
				
					 | 
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					***gluUnProject: *** | 
				
			
			
		
	
		
			
				
					 | 
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 | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
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					```cpp | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
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					  glm::vec3 unProject( | 
				
			
			
		
	
		
			
				
					 | 
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				 | 
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 | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
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					  > glm::vec3 const & win, | 
				
			
			
		
	
		
			
				
					 | 
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					  > | 
				
			
			
		
	
		
			
				
					 | 
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					  > glm::mat4 const & model, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
					 | 
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					  > glm::mat4 const & proj, | 
				
			
			
		
	
		
			
				
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					  > | 
				
			
			
		
	
		
			
				
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					  > glm::{i, ' '}vec4 const & viewport); | 
				
			
			
		
	
		
			
				
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 | 
				
			
			
		
	
		
			
				
					 | 
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				 | 
				
					  glm::dvec3 unProject( | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
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 | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
				 | 
				
					  > glm::dvec3 const & win, | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
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					  > | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
				 | 
				
					  > glm::dmat4 const & model, | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
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					  > | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
				 | 
				
					  > glm::dmat4 const & proj, | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
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					  > | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
				 | 
				
					  > glm::{i, ' ', d}vec4 const & viewport); | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
				 | 
				
					glm::vec3 unProject(glm::vec3 const& win, glm::mat4 const& model, glm::mat4 const& proj, glm::ivec4 const& viewport); | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
				 | 
				
					glm::dvec3 unProject(glm::dvec3 const& win, glm::dmat4 const& model, glm::dmat4 const& proj, glm::ivec4 const & viewport); | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
				 | 
				
					``` | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
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 | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
				 | 
				
					From GLM\_GTC\_matrix\_transform extension: | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
				 | 
				
					<glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
				 | 
				
					From GLM\_GTC\_matrix\_transform extension: <glm/gtc/matrix\_transform.hpp> | 
				
			
			
		
	
		
			
				
					 | 
					 | 
				
				 | 
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 | 
				
			
			
		
	
		
			
				
					 | 
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				 | 
				 | 
				
					--- | 
				
			
			
		
	
		
			
				
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				 | 
				 | 
				
					## 6. Known issues <a name="section6"></a> | 
				
			
			
		
	
	
		
			
				
					| 
						
							
								
							
						
						
						
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