1

Copying depth render buffer to depth bufferに従おうとしましたが、うまくいきません。これが私の完全な例です：

#include <GL/glew.h>
#include <GL/glfw.h>
#include <GL/glu.h>
#include <iostream>

typedef unsigned int uint;

int main()
{
    if (glfwInit() != 1)
    {
        return 1;
    }

    const uint width = 256;
    const uint height = 256;

    if (glfwOpenWindow(width, height, 8, 8, 8, 0, 24, 0, GLFW_WINDOW) != 1)
    {
        return 1;
    }

    GLenum err = glewInit();
    if (GLEW_OK != err)
    {
        std::cerr << glewGetErrorString(err) << std::endl;
        return 1;
    }

    GLuint r;
    glGenRenderbuffers(1, &r);
    glBindRenderbuffer(GL_RENDERBUFFER, r);
    glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, width, height);
    glBindRenderbuffer(GL_RENDERBUFFER, 0);

    GLuint r2;
    glGenRenderbuffers(1, &r2);
    glBindRenderbuffer(GL_RENDERBUFFER, r2);
    glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA4, width, height);
    glBindRenderbuffer(GL_RENDERBUFFER, 0);

    GLuint f;
    glGenFramebuffers(1, &f);
    glBindFramebuffer(GL_FRAMEBUFFER, f);
    glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, r);
    glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, r2);
    std::cout << (glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE) << std::endl;
    glBindFramebuffer(GL_FRAMEBUFFER, 0);

    std::cout << gluErrorString(glGetError()) << std::endl;

    glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
    glBindFramebuffer(GL_READ_FRAMEBUFFER, f);
    glBlitFramebuffer(0, 0, width, height, 0, 0, width, height, GL_DEPTH_BUFFER_BIT, GL_NEAREST);

    std::cout << gluErrorString(glGetError()) << std::endl;

    return 0;
}

私が得る出力：

1
no error
invalid operation

24inglfwOpenWindowは深度ビットの数です。私は何を間違っていますか？

4

2 に答える 2

0

ThomasD がコメントで示唆したように、うまくいきましたGL_DEPTH24_STENCIL8。

于 2015-08-31T14:21:05.083 に答える