我試圖初始化GLEW 1.10與GLFW3的最新版本一起。我已經設法讓GLFW3在沒有問題的情況下工作,但是GLew相當困難。我跟着從如何初始化GLEW網站的例子,但glewInit()
出於某種原因是不確定的,glewGetContext identifier not found/undefined
(在底部錯誤):廣東話初始化GLEW與GLFW3
#include <GLew110\glew.h>
#define GLFW_INCLUDE_GLU
#include <GLFW/glfw3.h>
#include <stdlib.h>
#include <stdio.h>
static void error_callback(int error, const char* description)
{
fputs(description, stderr);
}
static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
glfwSetWindowShouldClose(window, GL_TRUE);
}
int main(void)
{
GLFWwindow* window;
glfwSetErrorCallback(error_callback);
if (!glfwInit())
exit(EXIT_FAILURE);
window = glfwCreateWindow(800, 600, "Simple example", NULL, NULL);
if (!window)
{
glfwTerminate();
exit(EXIT_FAILURE);
}
GLenum err = glewInit(); // <---- "glewGetContext" is undefined (line 29)
if (GLEW_OK != err)
{
/* Problem: glewInit failed, something is seriously wrong. */
fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
}
glfwMakeContextCurrent(window);
glfwSetKeyCallback(window, key_callback);
while (!glfwWindowShouldClose(window))
{
float ratio;
int width, height;
glfwGetFramebufferSize(window, &width, &height);
ratio = width/(float) height;
glViewport(0, 0, width, height);
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-ratio, ratio, -1.f, 1.f, 1.f, -1.f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glRotatef((float) glfwGetTime() * 50.f, 0.f, 0.f, 1.f);
glBegin(GL_TRIANGLES);
glColor3f(1.f, 0.f, 0.f);
glVertex3f(-0.6f, -0.4f, 0.f);
glColor3f(0.f, 1.f, 0.f);
glVertex3f(0.6f, -0.4f, 0.f);
glColor3f(0.f, 0.f, 1.f);
glVertex3f(0.f, 0.6f, 0.f);
glEnd();
glfwSwapBuffers(window);
glfwPollEvents();
}
glfwDestroyWindow(window);
glfwTerminate();
exit(EXIT_SUCCESS);
}
兩個錯誤列表:
error C3861: 'glewGetContext': identifier not found (line 29 pointing to glewInit())
IntelliSense: identifier "glewGetContext" is undefined (line 29)
這聽起來像一個編譯/鏈接的問題,但是這不是100%來自這個問題清楚了。請發佈一個完整的小示例程序來顯示問題(它聽起來像一個只有'glewInit()'調用)的程序,然後複製/粘貼確切的錯誤消息。 –
@MichaelBurr感謝您的回覆。我更新了代碼(可運行)並列出了底部收到的兩個錯誤。刪除假設初始化GLew的代碼將顯示一個旋轉的彩色三角形。 – SpicyWeenie
glewinit後應glfwMakeCurrentContext –