I'm currently porting an old OpenGL 1.1 application which makes use of wireframe models to OpenGL 3.0. In 1.1 following code is used to create a dashed line: glPushAttrib(GL_ENABLE_BIT); glLineS...

When I call the glRotatef like this: glRotatef(angle,0.0,1.0,0.0) //rotate about y-axis I know it is to rotate by angle degrees about the y axis. But, what is being rotated here? Which object e...

I am struggling to figure out something let's say im rendering some image that has a height of 100 and a width of 100. In scenario A I am taking a glOrtho(0,100,0,100,-100,100) and glViewPo...