pastemyst | Shader "Unlit/ScreenPosEffects"

Shader "Unlit/ScreenPosEffects"

(untitled)

C#copy raw

Shader "Unlit/ScreenPosEffects"
{
    Properties
    {
        _MainTex ("Texture", 2D) = "white" {}
        _PCFOTex ("PCFO Texture", 2D) = "white" {}
        _PCFOTexDrawSize ("PCFOTex Draw Size", float) = 1.0
        _TrackedPosition ("Tracked position", Vector) = (0, 0, 0, 0)
    }

SubShader
    {
        Cull Off 
        ZWrite Off 
        ZTest Always

Pass
        {
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag

#include "UnityCG.cginc"

sampler2D _MainTex;
            float4 _MainTex_ST;
            sampler2D _PCFOTex;
            float4 _PCFOTex_ST;
            float _PCFOTexDrawSize;
            float4 _TrackedPosition;

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

struct v2f
            {
                float2 uv : TEXCOORD0;
                float4 vertex : SV_POSITION;
            };

v2f vert (appdata IN)
            {
                v2f OUT;
                OUT.vertex = UnityObjectToClipPos(IN.vertex);
                OUT.uv = IN.uv;

return OUT;
            }

fixed4 frag (v2f IN) : SV_Target
            {
                fixed4 mainColor = tex2D(_MainTex, IN.uv);
                fixed4 pyroColor = tex2D(_PCFOTex, IN.uv);

float2 posFactor = (IN.uv - 0.5) * (unity_OrthoParams.xy * 2);
                float2 camWorldPos = posFactor + _WorldSpaceCameraPos.xz;
                float blendFactor = saturate(distance(camWorldPos, _TrackedPosition.xz + 0.5) * _PCFOTexDrawSize);

mainColor.rgb = lerp(pyroColor.rgb, mainColor.rgb, blendFactor);

return mainColor;
            }
            ENDCG
        }
    }
}

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