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Questions tagged [glut]

The [Open]GL Utility Toolkit (GLUT) is a utility library for OpenGL applications to put the platform-dependent details (e.g. creating windows and responding to mouse events and key presses) under one hood, in an easy and portable way.

GLUT stands for OpenGL Utility Toolkit is a utility library for OpenGL applications to put the platform-dependent details (e.g., creating windows and responding to mouse events and key presses) under one hood, in an easy and portable way.

The OpenGL Utility Toolkit is a kind of library of utilities for OpenGL programs, which primarily perform system-level I/O with the host operating system. Functions performed include window definition, window control, and monitoring of keyboard and mouse input. Routines for drawing a number of geometric primitives are also provided.

The original GLUT has been unsupported for 20 years (see GLUT - The OpenGL Utility Toolkit), but there exists a current, maintained alternative named FreeGLUT.

Tag usage:

The tag can be used for OpenGL Utility Toolkit-related programming problems. The tag can be used for installation related problems of GLUT packages.

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opengl ,change shape of my draw

i am making a program which will have menu and submenus. EDITED------------------------------------------------ The "shape" submenu don't work when i call it. When i call the shape menu ,it must draw for example,a square or a triangle or a…
George
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Making the square bigger when it moves

#include // this library is for standard input and output #include "glut.h" // this library is for glut the OpenGL Utility Toolkit #include float squareX = 0.0f; float squareY = 200.0f; static int flag = 1; void drawShape(void)…
Muddy
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GLUT Keyboard callback issues with C

I'm currently coding a version of breakout as a quick learning experience of C and OpenGL. Im having some issues with moving the paddle. I've set a keyboard callback so that when the left arrow is pressed, it subtracts 1 from the x value on the…
Jamie White
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Black background appears on the last scene

I have a problem, once the hot air balloon reaches the ground, a black background appears. // a switch case based on state with appropriate calls switch (state) { // scene 1 case 1: drawBackground1(); // the first background to appear …
Muddy
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Fade in and fade out object on a specific time

int state = 1; bool turbines_visible = true; // move the hot air balloon up // make the square go up void update(int value) { // 1 : move up if (state == 1) { squareY += 1.0f; if (squareY > 650.0) { state = 2; …
Muddy
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Visual Studio doesn't find GL/glut.h

I'm using Microsoft Visual Studio Community 2017 on Windows 10 and I've been trying to install GLUT using this online guide that I found on this StackOverflow question. However, when I try to compile my code this error still shows up: fatal error…
DCBuilder
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How can I render one whole teapot in four viewports (each viewport render one part of the teapot) with OpenGL(GLUT)

As stated in the title, I need to render one part of the teapot in each of the four viewports, and the four parts together are a complete teapot. I can now complete the effect in gluOrtho2D. But in gluPerspective, I cannot use gluLookAt to change…
NonoHh
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3d Object Dragging with mouse click OpenGL

I'm trying to left click and drag any 3d Object and if i let go of it, it should stay in its new position, how would i achieve this? The 3d object is loaded from the draw function that i have in a header file. Someone said i should be using…
Allz.24
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OpenGL window not responding when performing computation on GPU

It is a CUDA Code which performs ray tracing. The OpenGL window is used to display the output of the ray tracing performed. Since, the RayTrace is quite slow, I am not particularly concerned about OpenGL performace etc. But when the ray-tracing…
Recoder
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What does a function name indicate and more

Consider this simple program: #include void length(void){ std::cout<<"My length is void"<
juztcode
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How to load .m file without getting getting error?

Following is my code. I am getting multiple error like: Severity Code Description Project File Line Suppression State Error C2995 'glm::detail::component_count_t glm::detail::component_count(const genType &)': function template has …
Pankaj Dubey
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Variable value not being incremented in glutIdleFunc() in C++

I am trying to continuously increment the variable bulletY once I click on letter "b" on the keyboard until the maximum y value window size to give a shooting effect . However bulletY is only being incremented once. Here are the initial values of…
M.A.G
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Drawing a Pixel on OpenGL using glDrawPixels()

I want to make makePixel(...) function in C++ that can place a pixel in specified x and y. But I have no idea why my approach is not working. #include "glut.h" int WIDTH, HEIGHT = 400; GLubyte* PixelBuffer = new GLubyte[WIDTH * HEIGHT * 3]; void…
ibmlih
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OpenGL cube and pyramid

I have this OpenGL code the draws a cube and pyramid. However, this program rotates the pyramid and cube together. I am tasked with only making the cube itself move not both objects at the same time. I know for this to happen I have to implement…
griplur
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OpenGL Glut display function showing a black screen on Mojave

I am trying to run a very simple example on OpenGlut for my class assignment and for some reason the code is not working on my xcode. I am currently using Xcode 10 on macOS Mojave. Following is the code: #include void render() { …
Milan Jain
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