glew

Difference between OpenGL files glew.h and gl.h/glu.h

删除回忆录丶 提交于 2019-11-28 16:54:32
I've built an OpenGL program with my glu and gl header files default included in windows 7 professional edition. Now, I've bought a book that describes OpenGL game development. The author of this book said, I have to include the glew header into my project. After I've done this I got some unresolved external symbol errors. So, now I'm really confused. I've worked earlier with glBegin and glEnd statements in my program. Now I've to work with glBindBuffers and glGenBuffer etcetera, but I get the unresolved external symbol errors, like that: 1>cWindows.obj : error LNK2001: unresolved external

Undefined reference to `_imp__glewInit@0'

倾然丶 夕夏残阳落幕 提交于 2019-11-28 11:23:10
I have built the glew lib so many times. My last build removed the undefined references to all the shader functions such as glCreateShader() . I think this build is the correct one cause I found out that Code:Blocks can open Visual Studio 6.0 projects so it had everything laid out for me. I can compile my app without calling glewInit() but it results in a SEGFAULT right when glCreateShader() is called. Which is caused by not Initializing glew. I need to turn it on but it wont let me XD links: mingw32, glew32, opengl32, glu32, glut32 IDE: Code::Blocks Compiler:MinGW32 Save yourself a lot of

How can I make OpenGL draw something using VBOs in XCODE?

我与影子孤独终老i 提交于 2019-11-28 10:19:53
问题 Good evening, Right now I'm trying to run the following code using Xcode, but it has been impossible so far. The code is a from a simple tutorial I found online, and the code is supposed to simply draw a triangle using OpenGL and VBOs. If I try the code using Visual Studio, I actually get the expected result with no problems at all. However, when I try to run the code using Xcode, I only get a black screen. To setup the project in Xcode, I installed GLEW and FreeGlut using MacPorts and then I

Building glew on windows with mingw32

强颜欢笑 提交于 2019-11-28 08:50:36
It is a duplicate and I am sorry about it but I don't have any other options because I can't make comments on answers and they didn't solved my problem. Here is the original post: Building glew on windows with mingw And here is my problem: 1) When I try @LightningIsMyName's answer I get this error: Makefile:1: *** missing seperator. Stop. 2) When I try @anon's answer I get this error: Makefile:1: Makefile:1: *** commands commence before first target. Stop. People says this andswer helped them but they didn't worked for me. I apogilize I duplicae a question somehow but I have no other chance

Cmake link library target link error

本小妞迷上赌 提交于 2019-11-28 07:23:24
Hi I have problem with linkg Glfw and other libraries using cmake. From command line i compile like this g++ main.cpp -lGL -lGLU -lGLEW -lglfw But I wanted to use cmake for compiling. I tried to use target_linkg_libraries but this produce error CMake Error at CMakeLists.txt:18 (target_link_libraries): Cannot specify link libraries for target "GL" which is not built by this project. I tried do this using add definitions. I dont see error but this don't link libraries. cmake_minimum_required (VERSION 2.6) project (test) find_package(OpenGL REQUIRED) find_package(GLEW REQUIRED) ADD_DEFINITIONS(

GLEW Linker Errors (undefined reference to `__glewBindVertexArray')

我与影子孤独终老i 提交于 2019-11-28 02:18:25
I've recently made the decision to re-write some OpenGL code for a game using im working on using non depreciated techniques. Instead of drawing primitives with glBegin() and glEnd(), i'm trying to stick to vertex array objects and such. I'm trying to get code to compile from http://www.opengl-tutorial.org/beginners-tutorials/tutorial-2-the-first-triangle/ . I've done alot of linking before but for some reason this isn't working. I'm trying to link GLEW to my project with CodeBlocks as my IDE and MinGW GCC as my compiler. How do I go about fixing this? Yes, i did link "glew32.lib" This usually

Linking GLEW with CMake

ぃ、小莉子 提交于 2019-11-27 22:52:50
How can you link GLEW to a project with CMake? We've been trying to link GLEW to our project using CMake for at least 3 hours without any success so any help is accepted. I'm using the FindGLEW.cmake which comes with CMake 3.1.0 CMakeLists.txt find_package(GLEW REQUIRED) if (GLEW_FOUND) include_directories($(GLEW_INCLUDE_DIRS)) endif() Environment Variables I'm using MinGW w64 to compile the sources and we successfully linked GLFW and GLM just by copying the includes and libs to their respective folders, but after doing the same with GLEW, CMake still couldn't find it. Sorry if I wasn't clear

Compiling Simple static OpenGL 4.0 program using MinGW, freeglut and glew

人走茶凉 提交于 2019-11-27 18:56:19
问题 The problem is in the title, I'll try to list what I've already tried and so on below. First off, in my understanding, in order to use OpenGL 4.0 on windows you must extend and or bypass the default windows library as it only ships OpenGL 1.1. So we have MinGW installed at C:/MinGW/ . Next I setup FreeGLUT by downloading the tarball from the project site. Extract and compile by running the makefiles according to the instructions with a minor addition of --prefix to the ./configure command. .

Why does glGetString(GL_VERSION) return null / zero instead of the OpenGL version?

做~自己de王妃 提交于 2019-11-27 14:20:39
I'm on Linux Mint 13 XFCE. My problem is that when I run in terminal the command: glxinfo | grep "OpenGL version" I get the following output: OpenGL version string: 3.3.0 NVIDIA 295.40 But when I run the glGetString(GL_VERSION) in my application then the result is null. Why doesn't this code get the gl_version ? #include <stdio.h> #include <GL/glew.h> #include <GL/gl.h> #include <GL/glu.h> #include <GL/glut.h> #include <GL/glext.h> int main(int argc, char **argv) { glutInit(&argc, argv); glewInit(); printf("OpenGL version supported by this platform (%s): \n", glGetString(GL_VERSION)); }

Using OpenGL extensions On Windows

|▌冷眼眸甩不掉的悲伤 提交于 2019-11-27 10:35:13
问题 I want to use the functions exposed under the OpenGL extensions. I'm on Windows, how do I do this? 回答1: Easy solution : Use GLEW. See how here. Hard solution : If you have a really strong reason not to use GLEW, here's how to achieve the same without it: Identify the OpenGL extension and the extension APIs you wish to use. OpenGL extensions are listed in the OpenGL Extension Registry. Example: I wish to use the capabilities of the EXT_framebuffer_object extension. The APIs I wish to use from