即使这个问题被问了多次(我读了所有这些,但没有解决方案对我有用),我还是试图用LWJGL和OpenGL为矩形建模 ,但每次都会崩溃。这是我的PC统计信息:
AMD锐龙1600x | 微星Nvidia GTX 1060(6GB)| MSI x370 Carbon Pro主板
我也在具有i7处理器和Nvidia Quadro K 1000M设置的Intel-Setup上尝试过此操作,但在以下内容中可能看到相同的错误:
https://hastebin.com/ayiqiritov.makefile
我的绘图方法:
public void render(RawModel model){
GL30.glBindVertexArray(model.getVaoID());
GL20.glEnableVertexAttribArray(0);
GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, model.getVertexCount());
GL20.glDisableVertexAttribArray(0);
GL30.glBindVertexArray(0);
}
在此类中,我创建VAO和VBO,并将数据存储到其中:
private List<Integer> vaos = new ArrayList<Integer>();
private List<Integer> vbos = new ArrayList<Integer>();
public RawModel loadToVAO(float[] positions) {
int vaoID = createVAO();
storeDataInAttributeList(0, positions);
unbindVAO();
return new RawModel(vaoID, positions.length / 3);
}
public void cleanUp() {
for (int vao : vaos) {
GL30.glDeleteVertexArrays(vao);
}
for (int vbo : vbos) {
GL15.glDeleteBuffers(vbo);
}
}
private int createVAO() {
int vaoID = GL30.glGenVertexArrays();
vaos.add(vaoID);
GL30.glBindVertexArray(vaoID);
return vaoID;
}
private void storeDataInAttributeList(int attributeNumber, float[] data) {
int vboID = GL15.glGenBuffers();
vbos.add(vboID);
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID);
FloatBuffer buffer = storeDataInFloatBuffer(data);
GL15.glBufferData(GL15.GL_ARRAY_BUFFER, buffer, GL15.GL_STATIC_DRAW);
GL20.glVertexAttribPointer(attributeNumber, 3, GL11.GL_FLOAT, false, 0, 0);
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
}
private void unbindVAO() {
GL30.glBindVertexArray(0);
}
private FloatBuffer storeDataInFloatBuffer(float[] data) {
FloatBuffer buffer = BufferUtils.createFloatBuffer(data.length);
buffer.put(data).position(0);
buffer.flip();
return buffer;
}
还有我的主要方法:
public static void main(String[] args){
if(!glfwInit()){
throw new IllegalStateException("Failed");
}
System.out.println(GL11.glGetString(GL11.GL_VERSION));
glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
GLFW.glfwWindowHint(GLFW.GLFW_CONTEXT_VERSION_MINOR, 3);
GLFW.glfwWindowHint(GLFW.GLFW_CONTEXT_VERSION_MAJOR, 4);
long window = GLFW.glfwCreateWindow(640, 480, "Hello World", 0, 0);
if(window == 0){
throw new IllegalStateException("Failed to create Window");
}
GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());
glfwSetWindowPos(window, (vidmode.width() - 640) / 2, (vidmode.height() - 480) / 2);
glfwShowWindow(window);
Loader loader = new Loader();
Renderer renderer = new Renderer();
float[] vertices = {
-0.5f, 0.5f, 0f,
-0.5f, -0.5f, 0f,
0.5f, -0.5f, 0f,
0.5f, -0.5f, 0f,
0.5f, 0.5f, 0f,
-0.5f, 0.5f, 0f
};
RawModel model = loader.loadToVAO(vertices);
while(!glfwWindowShouldClose(window)){
renderer.prepare();
renderer.render(model);
glfwPollEvents();
}
loader.cleanUp();
GLFW.glfwTerminate();
}
所以我已经尝试过:
更新图形卡驱动程序,更新Java,更新Windows,设置新的Eclipse,重新安装Java并删除Eclipse中的.metadata。
有人可以帮助我吗?
答案 0 :(得分:0)
根据评论
我还没有实现着色器
在OpenGL中进行渲染的最先进方法是使用Shader。
如果不使用着色器,则必须通过glVertexPointer
定义顶点数据数组。 glVertexPointer
指定固定功能顶点坐标属性的数组。如果您没有着色器程序,则必须使用Fixed Function Pipeline。
private void storeDataInAttributeList(int attributeNumber, float[] data) {
int vboID = GL15.glGenBuffers();
vbos.add(vboID);
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID);
FloatBuffer buffer = storeDataInFloatBuffer(data);
GL15.glBufferData(GL15.GL_ARRAY_BUFFER, buffer, GL15.GL_STATIC_DRAW);
GL11.glVertexPointer( 3, GL11.GL_FLOAT, 0, 0 ); // <---------
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
}
此外,您还必须通过glEnableClientState( GL_VERTEX_ARRAY )
启用客户端的顶点坐标功能:
public void render(RawModel model){
GL30.glBindVertexArray(model.getVaoID());
GL11.glEnableClientState( GL11.GL_VERTEX_ARRAY ); // <---------
GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, model.getVertexCount());
GL11.glDisableClientState( GL11.GL_VERTEX_ARRAY ); // <---------
GL30.glBindVertexArray(0);
}
另外,在使用GL30.glGenVertexArrays()
之类的OpenGL指令之前,您必须创建“ GLCapabilities”实例并使OpenGL绑定可用,并且必须确保OpenGL上下文是最新的。>
在创建窗口之后和任何OpenGL指令之前调用glfwMakeContextCurrent(window)
和GL.createCapabilities()
:
long window = GLFW.glfwCreateWindow(640, 480, "Hello World", 0, 0);
if(window == 0){
throw new IllegalStateException("Failed to create Window");
}
GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());
glfwSetWindowPos(window, (vidmode.width() - 640) / 2, (vidmode.height() - 480) / 2);
glfwMakeContextCurrent(window); // <-----
glfwShowWindow(window);
GL.createCapabilities(); // <-----
.....
最后,您在渲染循环中缺少glfwSwapBuffers
。 glfwSwapBuffers
交换指定窗口的前后缓冲区。换句话说,它会将您渲染到的缓冲区绑定到屏幕上:
while(!glfwWindowShouldClose(window)){
renderer.prepare();
renderer.render(model);
glfwSwapBuffers(window); // <-----
glfwPollEvents();
}