OpenGL, OpenGL extensions and OpenGL shading language?
Hello,
I am new to OpenGL extensions and shading languages. I am working on windows machine. Before starting up with a project, I would like to know what is difference between normal OpenGL, OpenGL extensions and OpenGL shading language? When these three can be used?
Thanks
Regards
Rakesh Patil
OpenGL is a graphics library, GLSL (the OpenGL shading language) is a part of OpenGL and used to write shaders. Extensions are additional, optional parts of the library. For modern OpenGL you will need OpenGL and GLSL.
Hi Menzel,
Thanks for your quick reply. You said,
For modern OpenGL you will need OpenGL and GLSL.
From where can I get these and how to start through the programming process?
Thanks again
Regards
That's what the Wiki is forOriginally Posted by rakeshthp
http://www.opengl.org/wiki/Getting_started
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Sig: http://glhlib.sourceforge.net
an open source GLU replacement library. Much more modern than GLU.
float matrix[16], inverse_matrix[16];
glhLoadIdentityf2(matrix);
glhTranslatef2(matrix, 0.0, 0.0, 5.0);
glhRotateAboutXf2(matrix, angleInRadians);
glhScalef2(matrix, 1.0, 1.0, -1.0);
glhQuickInvertMatrixf2(matrix, inverse_matrix);
glUniformMatrix4fv(uniformLocation1, 1, FALSE, matrix);
glUniformMatrix4fv(uniformLocation2, 1, FALSE, inverse_matrix);
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