Got asked to share this so without further ado, and absolutely not cleanup or explanation of how it works, the shader:
// Upgrade NOTE: replaced '_Object2World' with 'unity_ObjectToWorld' Shader "Unlit/EnvPulse" { Properties { _MainColor ("Main Color", Color) = (1,1,1,1) _Pos ("Pulse Position", Vector) = (0,0,0,0) _PulseStart("Pulse Start", float) = 0 _PulseSize("Pulse Size", float) = 2 _EdgeDistance ("Edge Distance", float) = 10 _PulseSpeed("Pulse Speed", float) = 10 _LightingPower("Lighting Power", float) = 1 _PlayerPos ("Player Pos", Vector) = (0,0,0,0) } SubShader { Tags { "RenderType"="Opaque" } LOD 100 Pass { CGPROGRAM #pragma vertex vert #pragma fragment frag #include "UnityCG.cginc" struct appdata { float4 vertex : POSITION; }; struct v2f { float3 lighting : TEXCOORD3; float3 worldPos : TEXCOORD2; float4 vertex : SV_POSITION; }; float4 _MainColor; float3 _Pos; float _PulseStart; float _PulseSize; float _EdgeDistance; float _PulseSpeed; float _LightingPower; float4 _PlayerPos; v2f vert (appdata_base v) { v2f o; o.vertex = mul(UNITY_MATRIX_MVP, v.vertex); // fresnel float3 viewDir = normalize(ObjSpaceViewDir ( v.vertex )); float fres = 1 - saturate ( dot ( v.normal, viewDir ) ); fres = pow(fres , 2)* 0.5; // normalize(WorldSpaceViewDir(v.vertex)) // v.normal // down light // mul ((float3x3)UNITY_MATRIX_IT_MV, v.normal); float3 norm = mul ((float3x3)UNITY_MATRIX_IT_MV, v.normal); float downLight = saturate(dot(norm, float3(0,1,0))); downLight = downLight * 0.2; // combine lighting o.lighting = max(fres, downLight) * _LightingPower; //o.lighting = pow(o.lighting, 2); o.worldPos = mul (unity_ObjectToWorld, v.vertex).xyz; float dist = distance(o.worldPos, _Pos) ; // pulse //float purePulse = dist - (- _PulseStart); float pulse = saturate(dist - (_Time.y - _PulseStart) * _PulseSpeed ); //o.pulse -= saturate((purePulse - _PulseSize) * _PulseSpeed); // pulse major o.lighting += pulse ; // pulse minor //float innerPulse = saturate(dist - (_Time.y - 0.5 - _PulseStart) * _PulseSpeed ); //float innererPulse = saturate(dist - (_Time.y - 1 - _PulseStart) * _PulseSpeed ); //pulse = saturate( innerPulse - pulse); //o.lighting += pulse * 0.5; // pulse vertex offset //o.vertex.xyz += 1 * v.normal * saturate((innererPulse - pulse) * 0.2); //o.lighting += saturate((innererPulse - pulse) * 2); // player Light float playerLighting = (1- saturate(distance(_PlayerPos, o.worldPos) * .15) )* 0.6; o.lighting = max(o.lighting, playerLighting); // edge of the world float edge = distance(o.worldPos, float3(0,0,0)) - _EdgeDistance ; edge = saturate(edge * 0.07); //test //o.lighting = downLight; o.lighting += _MainColor; o.lighting = lerp( o.lighting, 0.5, edge); return o; } fixed4 frag (v2f i) : SV_Target { // sample the texture fixed4 light =float4( i.lighting,0); return light ; //fixed dist = distance(_Pos, i.worldPos); //return dist; } ENDCG } } }
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