Add Unlit shader

Author: vanifatovvlad

Runtime/Shaders/Unlit-MeshAnimation.shader

@@ -0,0 +1,89 @@
+Shader "Unlit/Unlit (Mesh Animation)"
+{
+    Properties
+    {
+        _MainTex ("Texture", 2D) = "white" {}
+        
+        [Header(Mesh Animation)]
+        _AnimTex ("Animation", 2D) = "white" {}
+        _AnimMul ("Animation Bounds Size", Vector) = (1, 1, 1, 0)
+        _AnimAdd ("Animation Bounds Offset", Vector) = (0, 0, 0, 0)
+        [PerRendererData] _AnimTime ("Animation Time", Vector) = (0, 1, 1, 0) /* (x: start, y: length, z: speed, w: startTime) */
+        [PerRendererData] _AnimLoop ("Animation Loop", Float) = 1
+    }
+    SubShader
+    {
+        Tags { "RenderType"="Opaque" }
+        LOD 100
+
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #pragma multi_compile_fog
+            #pragma multi_compile_instancing 
+            #pragma target 3.0
+            #pragma require samplelod
+
+            #include "UnityCG.cginc"
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv : TEXCOORD0;
+                uint vertexId : SV_VertexID;
+                UNITY_VERTEX_INPUT_INSTANCE_ID
+            };
+
+            struct v2f
+            {
+                float2 uv : TEXCOORD0;
+                UNITY_FOG_COORDS(1)
+                float4 vertex : SV_POSITION;
+            };
+
+            sampler2D _MainTex;
+            float4 _MainTex_ST;
+            sampler2D _AnimTex;
+            float4 _AnimTex_TexelSize;
+            
+            float4 _AnimMul;
+            float4 _AnimAdd;
+            
+            UNITY_INSTANCING_BUFFER_START(Props)
+                UNITY_DEFINE_INSTANCED_PROP(float4, _AnimTime)
+                UNITY_DEFINE_INSTANCED_PROP(float, _AnimLoop)
+            UNITY_INSTANCING_BUFFER_END(Props)
+
+            v2f vert (appdata v)
+            {
+                UNITY_SETUP_INSTANCE_ID(v);
+                
+                float4 t = UNITY_ACCESS_INSTANCED_PROP(Props, _AnimTime);
+                float looping = UNITY_ACCESS_INSTANCED_PROP(Props, _AnimLoop);
+                
+                float progress = (_Time.y - t.w) * t.z;
+                float progress01 = lerp(saturate(progress), frac(progress), looping);
+                float2 coords = float2(0.5 + v.vertexId, 0.5 + t.x + progress01 * t.y) * _AnimTex_TexelSize.xy;
+                float4 position = tex2Dlod(_AnimTex, float4(coords, 0, 0)) * _AnimMul + _AnimAdd;
+                
+                v.vertex = float4(position.xyz, 1.0);
+
+                v2f o;
+                o.vertex = UnityObjectToClipPos(v.vertex);
+                o.uv = TRANSFORM_TEX(v.uv, _MainTex);
+                UNITY_TRANSFER_FOG(o,o.vertex);
+                return o;
+            }
+
+            fixed4 frag (v2f i) : SV_Target
+            {
+                fixed4 col = tex2D(_MainTex, i.uv);
+                UNITY_APPLY_FOG(i.fogCoord, col);
+                return col;
+            }
+            ENDCG
+        }
+    }
+}