Shadows working but look dumb. The issue so far was that framebuffer.cpp interferes with the framebuffer used to create the shadow map.

33-shadow-mapping/shaders/33-depth.vert.glsl

@@ -0,0 +1,10 @@
+#version 330 core
+layout (location = 0) in vec3 aPos;
+
+uniform mat4 lightSpaceMatrix;
+uniform mat4 model;
+
+void main()
+{
+    gl_Position = lightSpaceMatrix * model * vec4(aPos, 1.0);
+}