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- to compile programs in the above-indicated sub- directories/trees,
- one must load libglut. inst-able images of GLUT v3.1 are located at
- toolbox/src/exampleCode/opengl/GLUT/inst/
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- ~opengl1/examples/alpha_blending README
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- Copyright 1991-1996 Silicon Graphics, Inc.
- Technical Education Development
- All Rights Reserved.
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- alpha.c - demonstrates how to use alpha blending to draw transparent
- objects
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- Axes: X - red, Y - green, Z - blue
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- Left Mousebutton - move eye position
- Middle Mousebutton - change twist angle
- Right Mousebutton - move up / down to zoom in / out
- <b> Key - cycle through 3 blend functions
- <R> Key - reset view
- Escape Key - exit the program
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- blend_equations.c - demonstrates the various blend equations
- available in the blend_minmax, blend_subtract, and
- blend_logic_op extensions
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- Escape Key - exit the program
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- alpha3D.c - demonstrates how to use alpha blending to draw transparent 3D
- objects
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- Axes: X - red, Y - green, Z - blue
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- Left Mousebutton - move eye position
- Middle Mousebutton - change twist angle
- Right Mousebutton - move up / down to zoom in / out
- <b> Key - cycle through 3 blend functions
- <d> Key - toggle depth mask on / off
- <R> Key - reset view
- Escape Key - exit the program
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- spotLightAlpha.c - spotlight shining on a stack of flat alpha blended
- grids
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- Left Mousebutton - move eye position
- Middle Mousebutton - change twist angle
- Right Mousebutton - move up / down to zoom in / out
- <d> Key - toggle depth mask on / off
- <s> key - toggle flat/smooth grid
- Escape key - exit the program
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- antialias.c - demonstrates how to use blending to render
- some antialiased points and lines
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- Left Mousebutton - move eye position
- Middle Mousebutton - change twist angle
- Right Mousebutton - move up / down to zoom in / out
- <a> Key - toggle antialiasing on / off
- <b> key - toggle blend function
- <o> Key - change the drawing order
- <R> Key - reset view
- Escape Key - exit the program
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