Added frame buffer support.

assets/shaders/textured.vert

@@ -0,0 +1,16 @@
+#version 330 core
+#extension GL_ARB_separate_shader_objects : enable
+
+layout (location = 0) in vec3 aPos;
+layout (location = 1) in vec2 aTexCoord;
+
+uniform mat4 u_Proj;
+uniform mat4 u_View;
+uniform mat4 u_Modl;
+
+out vec2 TexCoord;
+
+void main() {
+  gl_Position = u_Proj * u_View * u_Modl * vec4(aPos, 1.0);
+  TexCoord = vec2(aTexCoord.x, aTexCoord.y);
+}