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Published byNestor Netter Modified over 3 years ago

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School of Computer Science University of Seoul

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How can we create a window? How can we handle the events? What kind of objects can we render? How can we define/describe/specify the objects? How can we specify the material/color of the objects? How can we transform the objects? How can we set the camera? How can we map what the camera sees onto the window?

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Using GLUT library functions glutInit Initialize GLUT glutInitDisplayMode Set framebuffer glutInitWindowSize, glutInitWindowPosition and glutCreateWindow Create a window

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Using GLUT library glut*Func() Register event handler Ex: glutDisplayFunc

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Points Lines, line strips, line loops Triangles, quadrilaterals, polygons Triangle strips, triangle fans, quad strips Simple & convex polygons only More complex objects supported by GLU & GLUT

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glBegin(…) ~ glEnd() Specify vertices using glVertex*()

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glMaterial*() glColor*() Indexed color Current states

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Specify the transformations as 4x4 matrices (affine transformations)affine transformations Current state Kept in the Modelview matrix stack Hierarchical transformation supported Special functions for transformations: glTranslate*(), glRotate*(), glScale*()

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Represented as a 4x4 matrix Current state Kept in the projection matrix stack Special functions: glOrtho*(), glFrustum() More functions in GLU (ex: gluPerspective)

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glViewport() Aspect ratio

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