#5808 - Include and use .glsl in source (rend2)

code/rend2/glsl/shadowmask_vp.glsl

@@ -0,0 +1,20 @@
+attribute vec4 attr_Position;
+attribute vec4 attr_TexCoord0;
+
+uniform vec3   u_ViewForward;
+uniform vec3   u_ViewLeft;
+uniform vec3   u_ViewUp;
+uniform vec4   u_ViewInfo; // zfar / znear
+
+varying vec2   var_ScreenTex;
+varying vec3   var_ViewDir;
+
+void main()
+{
+	gl_Position = attr_Position;
+	//vec2 screenCoords = gl_Position.xy / gl_Position.w;
+	//var_ScreenTex = screenCoords * 0.5 + 0.5;
+	var_ScreenTex = attr_TexCoord0.xy;
+	vec2 screenCoords = attr_TexCoord0.xy * 2.0 - 1.0;
+	var_ViewDir = u_ViewForward + u_ViewLeft * -screenCoords.x + u_ViewUp * screenCoords.y;
+}