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How to draw converging parallel lines?

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Hi All Thanks in advance for your time. I am new to this forum and new to OpenGL programming. I am trying to draw a converging parallel line. Here is the code which writes the lines in windows environment: void drawOutline(void) { glBegin(GL_LINES); glVertex3f(-0.7f, -0.1f,0.9f); glVertex3f(-0.7f, -0.1f,-0.9f); glEnd(); glBegin(GL_LINES); glVertex3f(0.7f, -0.1f,0.9f); glVertex3f(0.7f, -0.1f,-0.9f); glEnd(); } Now as you can see this is a set of parallel lines along Z-axiz. Now how do I render these something like two rail lines (using projection)? Any help is appreciated. george

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