Added shadow maps

resources/shaders/default_shadow.vertex

@@ -0,0 +1,19 @@
+attribute vec3 vPosition;
+attribute vec2 vTexCoord;
+attribute vec3 vNormal;
+
+varying vec2 texCoord;
+varying vec4 fragPosLightSpace;
+varying vec3 fragNormal;
+
+uniform mat4 ProjectionModelViewMatrix;
+uniform mat4 ModelViewMatrix;
+uniform mat4 uLightFromCamera;
+
+void main()
+{
+	gl_Position = ProjectionModelViewMatrix * vec4(vPosition, 1.0);
+	texCoord = vTexCoord;
+	fragPosLightSpace = uLightFromCamera * ModelViewMatrix * vec4(vPosition, 1.0);
+	fragNormal = mat3(ModelViewMatrix) * vNormal;
+}