COMPUTER SCIENCE AND ENGINEERING
COMPUTER GRAPHICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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glClearColor()
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glDisplayfunc()
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glColor()
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None of These
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Detailed explanation-1: -When lighting is disabled, the color of a vertex is simply the current color as set by glColor*.
Detailed explanation-2: -The glVertex function commands are used within glBegin/glEnd pairs to specify point, line, and polygon vertices.
Detailed explanation-3: -The background-color CSS property sets the background color of an element.
Detailed explanation-4: -glClearColor(0, 0, 1, 0); then recompile the program and run it. The background of the OpenGL window should be blue. Colors in OpenGL are typically represented in RGB or RGBA mode.
Detailed explanation-5: -We use glColor function to set the foreground color, and glClearColor function to set the background (or clearing) color. Notes: Color is typically specified in float in the range 0.0f and 1.0f .