2015-07-20 73 views
-1

我是OpenGL的新手,我現在正在嘗試示例,我已經正確地包含了所有的庫,但似乎還有些東西不正確。Opengl superbible示例compliation錯誤源代碼:繪製三角形庫

兩個庫:freeglut_static.lib gltools.lib包含在項目中。

這是代碼:

// Triangle.cpp 
// Our first OpenGL program that will just draw a triangle on the screen. 
#include <GLTools.h> // OpenGL toolkit 
#include <GLShaderManager.h> // Shader Manager Class 
#ifdef __APPLE__ 
#include <glut/glut.h> // OS X version of GLUT 
#else 
#define FREEGLUT_STATIC 
#include <GL/glut.h> // Windows FreeGlut equivalent 
#endif 
GLBatch triangleBatch; 
GLShaderManager shaderManager; 
/////////////////////////////////////////////////////////////////////////////// 
// Window has changed size, or has just been created. In either case, we need 
// to use the window dimensions to set the viewport and the projection matrix. 
void ChangeSize(int w, int h) 
{ 
    glViewport(0, 0, w, h); 
} 
/////////////////////////////////////////////////////////////////////////////// 
// This function does any needed initialization on the rendering context. 
// This is the first opportunity to do any OpenGL related tasks. 
void SetupRC() 
{ 
    // Blue background 
    glClearColor(0.0f, 0.0f, 1.0f, 1.0f); 
    shaderManager.InitializeStockShaders(); 
    // Load up a triangle 
    GLfloat vVerts[] = { -0.5f, 0.0f, 0.0f, 
     0.5f, 0.0f, 0.0f, 
     0.0f, 0.5f, 0.0f }; 
    triangleBatch.Begin(GL_TRIANGLES, 3); 
    triangleBatch.CopyVertexData3f(vVerts); 
    triangleBatch.End(); 
} 
/////////////////////////////////////////////////////////////////////////////// 
// Called to draw scene 
void RenderScene(void) 
{ 
    // Clear the window with current clearing color 
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); 
    GLfloat vRed[] = { 1.0f, 0.0f, 0.0f, 1.0f }; 
    shaderManager.UseStockShader(GLT_SHADER_IDENTITY, vRed); 
    triangleBatch.Draw(); 
    // Perform the buffer swap to display the back buffer 
    glutSwapBuffers(); 
} 

/////////////////////////////////////////////////////////////////////////////// 
// Main entry point for GLUT based programs 
int main(int argc, char* argv[]) 
{ 
    gltSetWorkingDirectory(argv[0]); 
    glutInit(&argc, argv); 
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH | GLUT_STENCIL); 
    glutInitWindowSize(800, 600); 
    glutCreateWindow(「Triangle」); 
    glutReshapeFunc(ChangeSize); 
    glutDisplayFunc(RenderScene); 
    GLenum err = glewInit(); 
    if (GLEW_OK != err) { 
     fprintf(stderr, 「GLEW Error: %s\n」, glewGetErrorString(err)); 
     return 1; 
    } 
    SetupRC(); 
    glutMainLoop(); 
    return 0; 
} 

錯誤形式交往給出:

1>Linking... 
1>LINK : warning LNK4098: defaultlib 'LIBCMT' conflicts with use of other libs; use /NODEFAULTLIB:library 
1>LINK : warning LNK4098: defaultlib 'LIBCMTD' conflicts with use of other libs; use /NODEFAULTLIB:library 
1>Triangle.obj : error LNK2019: unresolved external symbol [email protected] referenced in function _main 
1>Triangle.obj : error LNK2019: unresolved external symbol [email protected] referenced in function _main 
1>D:\XING BIZHOU\project\openglproj\Debug\openglproj.exe : fatal error LNK1120: 2 unresolved externals 
1>Build log was saved at "file://d:\XING BIZHOU\project\openglproj\openglproj\Debug\BuildLog.htm" 
1>openglproj - 3 error(s), 2 warning(s) 
+1

'_glewGetErrorString' - 你需要[添加'glew32.lib'](http://stackoverflow.com/q/17370/1888983)。 [google]上的一些好結果(https://www.google.com.au/search?q=error+LNK2019%3A+unresolved+external+symbol+_glewGetErrorString%404+referenced+in+function&oq=error+LNK2019 %3A +懸而未決+外部+符號+ _glewGetErrorString%404 + +引用在+功能&AQS = chrome..69i57.287j0j7&的SourceID =鉻&es_sm = 93&即= UTF-8)。 – jozxyqk

+0

我在項目中添加了glew32.lib,但仍然出現同樣的錯誤? –

+0

我明白爲什麼,因爲我沒有使用圖書館推薦的圖書館,所以這是版本問題,謝謝大家 –

回答

0

你有你的輸入庫?在項目/屬性/鏈接器/輸入/附加依賴

+0

我這樣補充:project-add-existing item,這是正確的方法嗎? –

+0

不對。在項目屬性的鏈接器里加,你再仔細找找。 – Aaron

1
unresolved external symbol _glewGetErrorString 

這意味着編譯器不會在您的環境中找到glew32庫。嘗試安裝它並確保它在LDPATH中,以便您的編譯器可以看到它。

+0

我在哪裏可以找到LDPATH? –

+0

它是一個_environment variable_。有幾個:'LD_LIBRARY_PATH','LIBRARY_PATH'和'PATH'。無論如何,如果您從ubuntu存儲庫安裝'libglew-dev'('sudo apt-get install libglew-dev'),它應該已經在您的庫路徑中。 –

+0

我使用Visual Studio 2008,並手動添加這些庫 –