update projection test

materials/postprocess_uv.mat

@@ -0,0 +1,38 @@
+material {
+    name : TextureProjectionPostProcess,
+    depthWrite : false,
+    depthCulling : false,
+    parameters : [
+        {
+            type : sampler2d,
+            name : rendered
+        },
+        {
+            type : sampler2d,
+            name : uvTexture
+        }
+    ],
+    variables : [
+        footex
+    ],
+    domain: postprocess,
+    outputs : [ {
+            name : foocolor,
+            target : color,
+            type : float4
+        }],
+    featureLevel : 0
+}
+
+vertex {
+    void postProcessVertex(inout PostProcessVertexInputs postProcess) {
+        postProcess.footex.xy = postProcess.normalizedUV;
+        postProcess.footex.xy = uvToRenderTargetUV(postProcess.footex.xy);
+    }
+}
+
+fragment {
+    void postProcess(inout PostProcessInputs postProcess) {
+        postProcess.foocolor = vec4(1.0, 0.0, 0.0, 1.0); //vec4(variable_footex.xyz, 1.0f);
+    }
+}