OpenGL:glBindRenderbufferEXT和glBindRenderbuffer冻结

时间:2012-03-29 13:46:32

标签: c++ opengl

我正在尝试显示一些纹理,而大多数时候它都有效,有时应用程序冻结。我找到了应用程序挂起的确切位置,代码就是这个,我用注释标记它停止工作。

glGenFramebuffers(1, &id);
glGenTextures(1, &texture);
glGenRenderbuffers(1, &render_buffer_id);

glBindTexture(GL_TEXTURE_2D, texture);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0,
            GL_RGBA, GL_UNSIGNED_BYTE, 0);
glBindTexture(GL_TEXTURE_2D, 0);

// Here it freezes, also while using 'glBindRenderbuffer'
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, render_buffer_id);
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT, width, height);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);

glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, id);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
                          GL_TEXTURE_2D, m_texture, 0);
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT,
                            GL_RENDERBUFFER_EXT, render_buffer_id);

有什么想法吗?

0 个答案:

没有答案