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每當我調整的OpenGL窗口,而我調整窗口的大小不畫如何畫。完成窗口大小調整後,窗口的新暴露部分纔會被繪製。您可以在下面的圖片中看到它自己:而調整窗口大小
這裏是我的應用程序的代碼。我在Visual Studio 2015上運行Windows 10
#include <glad/glad.h>
#include <GLFW/glfw3.h>
#include <iostream>
void framebuffer_size_callback(GLFWwindow* window, int width, int height);
void processInput(GLFWwindow *window);
void get_resolution(int* window_width, int* window_height);
void initGlfwSettings();
GLFWwindow* initGlfwWindow();
void initGlad();
// settings
const unsigned int SCR_WIDTH = 800;
const unsigned int SCR_HEIGHT = 600;
int main()
{
initGlfwSettings();
GLFWwindow* window = initGlfwWindow();
initGlad();
// glad: load all OpenGL function pointers
// ---------------------------------------
// render loop
// -----------
while (!glfwWindowShouldClose(window))
{
int width, height;
glfwGetWindowSize(window, &width, &height);
glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
// input
// -----
processInput(window);
// glfw: swap buffers and poll IO events (keys pressed/released, mouse moved etc.)
// -------------------------------------------------------------------------------
glfwSwapBuffers(window);
glfwPollEvents();
}
// glfw: terminate, clearing all previously allocated GLFW resources.
// ------------------------------------------------------------------
glfwTerminate();
return 0;
}
// process all input: query GLFW whether relevant keys are pressed/released this frame and react accordingly
// ---------------------------------------------------------------------------------------------------------
void processInput(GLFWwindow *window)
{
if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
glfwSetWindowShouldClose(window, true);
}
// glfw: whenever the window size changed (by OS or user resize) this callback function executes
// ---------------------------------------------------------------------------------------------
void framebuffer_size_callback(GLFWwindow* window, int width, int height)
{
// make sure the viewport matches the new window dimensions; note that width and
// height will be significantly larger than specified on retina displays.
glViewport(0, 0, width, height);
}
void get_resolution(int* window_width, int* window_height) {
const GLFWvidmode * mode = glfwGetVideoMode(glfwGetPrimaryMonitor());
*window_width = mode->width;
*window_height = mode->height;
}
void initGlfwSettings()
{
// glfw: initialize and configure
// ------------------------------
glfwInit();
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#ifdef __APPLE__
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // uncomment this statement to fix compilation on OS X
#endif
}
GLFWwindow* initGlfwWindow()
{
/*GLFWmonitor* monitor = glfwGetPrimaryMonitor();
int width;
int height;
get_resolution(&width, &height);*/
GLFWwindow* window = glfwCreateWindow(SCR_WIDTH, SCR_HEIGHT, "learning opengl", NULL, NULL);
if (window == NULL)
{
std::cout << "Failed to create GLFW window" << std::endl;
glfwTerminate();
exit(1);
}
glfwMakeContextCurrent(window);
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
glfwSwapInterval(1);
return window;
}
void initGlad()
{
if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
{
std::cout << "Failed to initialize GLAD" << std::endl;
exit(1);
}
}
解釋此問題的任何解決方案。
它通常是一件好事,是調整結束的時候,因爲你經常是窗口的大小相同的幀緩衝區的控制研究只能返回。這些只能在調整大小完成後調整大小。 – dari
我只是想繼續更新我所創建的一切。像運行視頻或實時數據一樣,至少捕獲需要自己的線程來避免失速。 –
@JonathanOlson你會如何暗示這一點?我嘗試了兩次來自己實現它,一旦顯示了所有內容,但總是顯示加載光標。在我第二次嘗試顯示黑屏。 –