PostEffect(Shader)

Setup

MainCameraオブジェクトに下記スクリプトをアタッチ

CamEffector.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[ExecuteInEditMode, ImageEffectAllowedInSceneView]
public class CamEffector : MonoBehaviour {
    //  created with shader
    [SerializeField] private Material material;

    private void OnRenderImage(RenderTexture source, RenderTexture destination) {
        //  convert with material
        Graphics.Blit(source, destination, material);
    }
}

shaderを割り当てたMaterialを設定することで該当Shaderを用いた画像処理が可能

sample.shader

Shader "PostEffect/differential"
{
    Properties
    {
        _MainTex ("Texture", 2D) = "white" {}
        _Param ("Param", Float) = 0.0
    }
    SubShader
    {
        Cull Off
        ZTest Always
        ZWrite Off

        Tags { "RenderType"="Opaque" }

        Pass
        {
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            // make fog work
            #pragma multi_compile_fog

            #include "UnityCG.cginc"

            struct appdata
            {
                float4 vertex : POSITION;
                float2 uv : TEXCOORD0;
            };

            struct v2f
            {
                float2 uv : TEXCOORD0;
                UNITY_FOG_COORDS(1)
                float4 vertex : SV_POSITION;
            };

            sampler2D _MainTex;
            float4 _MainTex_ST;

            v2f vert (appdata v)
            {
                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
            {
                // sample the texture
                fixed4 col = tex2D(_MainTex, i.uv);
                // apply fog
                UNITY_APPLY_FOG(i.fogCoord, col);
                return col;
            }
            ENDCG
        }
    }
}

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最終更新日: August 14, 2023
作成日: August 14, 2023