java - 调用 "glClearColor()"函数会导致核心转储

Question

我是 LWJGL 和 OpenGL 的新手，我已经进行了一些谷歌搜索，但似乎找不到任何与此相关的其他内容。

我制作了一个基本的测试程序来创建一个空白窗口。我可以创建窗口并正常运行应用程序，但如果我尝试使用 glClearColor() 更改透明颜色，应用程序将“崩溃”。

这是控制台中打印的文本:

[error occurred during error reporting (printing problematic frame), id 0xe0000000]
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /*****/*******/eclipse/java-neon/workspace/LWJGL Project/hs_err_pid10749.log
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.java.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

这是错误创建的文件(相当大): https://pastebin.com/9h0gsRmT link

这是代码:

package me.smorce.project;

import static org.lwjgl.glfw.GLFW.*;
import static org.lwjgl.opengl.GL11.*;
import static org.lwjgl.system.MemoryUtil.*;
import org.lwjgl.glfw.GLFWVidMode;
import me.smorce.project.input.Input;

public class Game
{
    public boolean running = false;
    private long window;
    public int windowWidth = 1280;
    public int windowHeight = windowWidth / 16 * 9;

    public void start()
    {
        running = true;
        init();
        while(running)
        {
            update();
            render();
            if(glfwWindowShouldClose(window)) running = false;
        }
    }

    private void init()
    {
        if(!glfwInit())
        {
            System.err.println("GLFW failed to initialize!");
            return;
        }
        glfwWindowHint(GLFW_RESIZABLE, GL_TRUE);
        window = glfwCreateWindow(windowWidth, windowHeight, "Game", NULL, NULL);
        if(window == NULL)
        {
            System.err.println("GLFW failed to create the window");
            return;
        }
        GLFWVidMode videoMode = glfwGetVideoMode(glfwGetPrimaryMonitor());
        glfwSetWindowPos(window, (videoMode.width() - windowWidth) / 2, (videoMode.height() - windowHeight) / 2);
        glfwSetKeyCallback(window, new Input());
        glfwMakeContextCurrent(window);
        glEnable(GL_DEPTH_TEST);
        System.out.println("OpenGL: " + glGetString(GL_VERSION));
        glfwShowWindow(window);
        glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
    }

    private void update()
    {
        glfwPollEvents();
        if(Input.keys[GLFW_KEY_SPACE])
        {
            System.out.println("SPACE BAR");
        }
    }

    private void render()
    {
        glfwSwapBuffers(window);
    }
}

任何指示/提示都会有帮助。提前致谢。

Answer 1

你失踪了

GL.createCapability();

来自getting started :

// This line (~the above) is critical for LWJGL's interoperation with GLFW's
// OpenGL context, or any context that is managed externally.
// LWJGL detects the context that is current in the current thread,
// creates the GLCapabilities instance and makes the OpenGL
// bindings available for use.

另外，也将 glEnable(GL_DEPTH_TEST); 移到该行之后。

您的计算机现在不会崩溃，但在不同的情况下可能会崩溃