// Upgrade NOTE: replaced '_Object2World' with 'unity_ObjectToWorld'
// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'

// Shader created with Shader Forge v1.13 
// Shader Forge (c) Neat Corporation / Joachim Holmer - http://www.acegikmo.com/shaderforge/
// Note: Manually altering this data may prevent you from opening it in Shader Forge
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Shader "NexGen/Planets/Fog Override/Halo Outer" {
    Properties {
        _Power ("Power", Range(0, 15)) = 1
        _ColorTint ("Color Tint", Color) = (0.5,0.5,0.5,1)
    }
    SubShader {
        Tags {
            "IgnoreProjector"="True"
            "Queue"="Transparent"
            "RenderType"="Transparent"
        }
        Pass {
            Name "FORWARD"
            Tags {
                "LightMode"="ForwardBase"
            }
            Blend One One
            ZWrite Off
            
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            #define UNITY_PASS_FORWARDBASE
            #include "UnityCG.cginc"
            #pragma multi_compile_fwdbase
            #pragma exclude_renderers xbox360 ps3 
            #pragma target 3.0
            uniform float _Power;
            uniform float4 _ColorTint;
            struct VertexInput {
                float4 vertex : POSITION;
                float3 normal : NORMAL;
            };
            struct VertexOutput {
                float4 pos : SV_POSITION;
                float4 posWorld : TEXCOORD0;
                float3 normalDir : TEXCOORD1;
            };
            VertexOutput vert (VertexInput v) {
                VertexOutput o = (VertexOutput)0;
                o.normalDir = UnityObjectToWorldNormal(v.normal);
                o.posWorld = mul(unity_ObjectToWorld, v.vertex);
                o.pos = UnityObjectToClipPos(v.vertex);
                return o;
            }
            float4 frag(VertexOutput i) : COLOR {
                i.normalDir = normalize(i.normalDir);
/////// Vectors:
                float3 viewDirection = normalize(_WorldSpaceCameraPos.xyz - i.posWorld.xyz);
                float3 normalDirection = i.normalDir;
                float3 lightDirection = normalize(_WorldSpaceLightPos0.xyz);
////// Lighting:
////// Emissive:
                float node_2486 = (1.0 - dot((1.0-max(0,dot((1.0 - lightDirection), viewDirection))),(1.0-max(0,dot(normalDirection, viewDirection)))));
                float3 emissive = (_ColorTint.rgb*(_Power*pow(saturate((0.5 - 2.0*(node_2486-0.5)*(node_2486-0.5))),float4(5,5,5,5)))).rgb;
                float3 finalColor = emissive;
                return fixed4(finalColor,1);
            }
            ENDCG
        }
    }
    FallBack "NexGen/Planets/Fog Override/HO"
    CustomEditor "ShaderForgeMaterialInspector"
}