Fix the lack of a depth buffer.sobel

1 files changed, 6 insertions, 0 deletions

diff --git a/src/scene.cpp b/src/scene.cpp
index 03b7110..5f1b3c5 100755
--- a/src/scene.cpp
+++ b/src/scene.cpp
@@ -380,6 +380,12 @@ Init()
 
 	glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, fbo_tex, 0);
 
+	GLuint rb;
+	glGenRenderbuffers(1, &rb);
+	glBindRenderbuffer(GL_RENDERBUFFER, rb);
+	glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, fbo_width, fbo_height);
+	glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rb);
+
 	gluPerspective4f(&projection_matrix, 55.0f * M_PI / 180.0f,
 			 fbo_width / fbo_height, 5.0f, 56.0f);