Download freeglut for windows 10

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Understanding Numpy With Examples. Understanding Pandas With Examples. Some settings will prevent the application from exiting when a window is closed. The glutSpecialFunc function sets the window's special key press callback. The glutSpecialFunc function specifies the function that freeglut will call when the user presses a special key on the keyboard. The callback function has one argument: the name of the function to be invoked "called back" at the time at which the special key is pressed.

The function returns no value. The Delete key is considered to be a regular key. The glutKeyboardUpFunc function sets the window's key release callback. The glutKeyboardUpFunc function specifies the function that freeglut will call when the user releases a key from the keyboard.

The callback function has one argument: the name of the function to be invoked "called back" at the time at which the key is released. Freeglut sets the current window to the window which is active when the callback is invoked. While freeglut checks for upper or lower case letters, it does not do so for non-alphabetical characters.

Nor does it account for the Caps-Lock key being on. The operating system may send some unexpected characters to freeglut , such as "8" when the user is pressing the Shift key. Releasing the Delete key causes this function to be invoked with a value of for key. It has been designed to be as close to GLUT as possible.

Users who find differences should contact the freeglut Programming Consortium to have them fixed. The glutSpecialUpFunc function sets the window's special key release callback. The glutSpecialUpFunc function specifies the function that freeglut will call when the user releases a special key from the keyboard.

The callback function has one argument: the name of the function to be invoked "called back" at the time at which the special key is released. The glutMouseWheelFunc function sets the window's mouse wheel callback.

If the mouse wheel is spun over your sub window, freeglut will report this via the MouseWheel callback. If you do not register a wheel callback, wheel events will be reported as mouse buttons.

On other platforms, function stubs are provided so that GLUT-based programs can compile and link against freeglut without modification. The glutSpaceballMotionFunc function sets the window's Spaceball motion callback.

The x , y , and z arguments indicate the amount of translation in integer along x, y, and z axis respectively. The x, y, and z axes form a common OpenGL right-handed coordinate system.

A positive value of x , y , or z indicates movement along the positive direction of the respective axis, while the negative one denotes movement along negative direction. The glutSpaceballRotateFunc function sets the window's Spaceball rotation callback. The rx , ry , and rz arguments indicate the amount of rotation in integer with respect to x, y, and z axis respectively. Positive value of rx , ry , or rz indicates counter-clock wise rotation along the respective axis, while negative one denotes clock wise rotation.

The glutSpaceballButtonFunc function sets the window's Spaceball button callback. The glutTabletMotionFunc function is not implemented in freeglut , although the library does "answer the mail" to the extent that a call to the function will not produce an error.. The glutTabletButtonFunc function is not implemented in freeglut , although the library does "answer the mail" to the extent that a call to the function will not produce an error.. The glutVisibilityFunc and the glutWindowStatusFunc functions set the window's visibility and windowStatus callbacks for the current window.

Setting one overwrites the other. GLUT considers a window visible if any pixel of the window is visible or any pixel of any descendant window is visible on the screen. If the window status callback for a window is disabled and later re-enabled, the window status of the window is undefined; any change in window window status will be reported, that is if you disable a window status callback and re-enable the callback, you are guaranteed the next window status change will be reported. Setting the window status callback for a window disables the visibility callback set for the window and vice versa.

Not all window managers support such finegrained callback messages or can even ensure basic correctness. On Windows, there are no notifications if the visibility status of a window changes and freeglut might be in visible state even if the window is fully obscured by other windows. The following state variables may be queried with glutGet.

The returned value is an integer. By using a function pointer returned from glutGetProcAddress , the application will avoid this hard dependency and be more portable and interoperate better with various implementations of OpenGL. Because they are rendered as bitmaps, the bitmap fonts tend to render more quickly than stroke fonts, but they are less flexible in terms of scaling and rendering.

It should be noted that freeglut fonts are similar but not identical to GLUT fonts. It does not use any display lists in it rendering in bitmap fonts.

It calls glTranslatef to advance the cursor by the width of a character and to render carriage returns when appropriate. The glutBitmapCharacter function renders a single bitmapped character in the current window using the specified font. The glutBitmapCharacter function renders the given character in the specified bitmap font. Nonexistent characters are rendered as asterisks.

The rendering position in freeglut is apparently off from GLUT's position by a few pixels vertically and one or two pixels horizontally. The glutBitmapString function renders a string of bitmapped characters in the current window using the specified font. The glutBitmapString function renders the given character string in the specified bitmap font. The glutBitmapString function handles carriage returns. The glutBitmapWidth function returns the width in pixels of a single bitmapped character in the specified font.

The glutBitmapWidth function returns the width of the given character in the specified bitmap font. Because the font is bitmapped, the width is an exact integer. The glutBitmapLength function returns the width in pixels of a string of bitmapped characters in the specified font.

The glutBitmapLength function returns the width in pixels of the given character string in the specified bitmap font. Because the font is bitmapped, the width is an exact integer: the return value is identical to the sum of the character widths returned by a series of calls to glutBitmapWidth.

The width of nonexistent characters is counted to be the width of an asterisk. If the string contains one or more carriage returns, freeglut calculates the widths in pixels of the lines separately and returns the largest width. The glutBitmapHeight function returns the height of a character in the specified bitmap font. Because the font is bitmapped, the height is an exact integer.

The fonts are designed such that all characters have nominally the same height. The glutStrokeCharacter function renders a single stroke character in the current window using the specified font.

The glutStrokeCharacter function renders the given character in the specified stroke font. Before the first call to glutStrokeCharacter the application program should call the OpenGL transformation positioning and scaling functions to set the position of the character in the window.

The glutStrokeCharacter function advances the cursor position by a call to glTranslatef and so the application does not need to call the OpenGL positioning functions again for successive characters on the same line.

The glutStrokeString function renders a string of characters in the current window using the specified stroke font. The glutStrokeString function renders the given character string in the specified stroke font. Before calling glutStrokeString the application program should call the OpenGL transformation positioning and scaling functions to set the position of the string in the window.

The glutStrokeString function handles carriage returns. The glutStrokeWidth function returns the width in model units of a single character in the specified stroke font, rounded to an int.

The glutStrokeWidth function returns the width of the given character in the specified stroke font. Because the font is a stroke font, the width is actually a floating-point number; the function rounds it to the nearest integer for the return value. The glutStrokeWidthf function returns the width in model units of a single character in the specified stroke font.

The glutStrokeWidthf function returns the width of the given character in the specified stroke font. Function was included in an unreleased GLUT 3. The glutStrokeLength function returns the width in model units of a string of characters in the specified stroke font, rounded to an int. The glutStrokeLength function returns the width in model units of the given character string in the specified stroke font.

Because the font is a stroke font, the width of an individual character is a floating-point number. Thus the return value may differ from the sum of the character widths returned by a series of calls to glutStrokeWidth. The glutStrokeLengthf function returns the width in model units of a string of characters in the specified stroke font. The glutStrokeLengthf function returns the width in model units of the given character string in the specified stroke font.

The return value is equal to the sum of the character widths returned by a series of calls to glutStrokeWidthf. The glutStrokeHeight function returns the height of a character in the specified stroke font. The application programmer should note that, unlike the other freeglut font functions, this one returns a floating-point number. These routines are effectively the same ones that are included in the GLUT library, and reflect the functionality available in the aux toolkit described in the OpenGL Programmer's Guide.

They are included to allow programmers to create with a single line of code a three-dimensional object which can be used to test a variety of OpenGL functionality. None of the routines generates a display list for the object which it draws.

The functions generate normals appropriate for lighting but, except for the teapot functions, do not generate texture coordinates. The glutWireSphere and glutSolidSphere functions draw a wireframe and solid sphere respectively.

The glutWireSphere and glutSolidSphere functions render a sphere centered at the origin of the modeling coordinate system. The north and south poles of the sphere are on the positive and negative Z-axes respectively and the prime meridian crosses the positive X-axis. The glutWireTorus and glutSolidTorus functions draw a wireframe and solid torus donut shape respectively.

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Install OpenGL on Ubuntu For installing OpenGL on Ubuntu, just execute the following command like installing any other thing in terminal : sudo apt-get install freeglut3-dev For working on Ubuntu operating system:.