Added shadow mapping example

data/shaders/shadowmapping/offscreen.vert

@@ -0,0 +1,16 @@
+#version 450
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (location = 0) in vec3 inPos;
+
+layout (binding = 0) uniform UBO 
+{
+	mat4 depthMVP;
+} ubo;
+ 
+void main()
+{
+	gl_Position =  ubo.depthMVP * vec4(inPos, 1.0);
+}