Well it's something ig

project/resources/shadowEffect.fx

@@ -2,14 +2,15 @@ float4x4 gLightWorldViewProj : WorldViewProjection;
 
 float4x4 gWorldViewProj: WorldViewProjection; //For compatibility sake
 
-Texture2D gShadowMap : register(t0); // Shadow map texture
-SamplerState gShadowMapSampler : register(s0); // Shadow map sampler
+Texture2D gShadowMap : ShadowMap;
+SamplerState gShadowMapSampler : ShadowMapSampler;
 
-struct VS_Input
-{
+struct VS_Input {
     float3 Position : POSITION;
+    float2 TexCoord : TEXCOORD;
+    float3 Normal : NORMAL;
+    float3 Tangent : TANGENT;
 };
-
 struct VS_Output
 {
     float4 Position : SV_POSITION;