koobas.hobune.stream
How to add a normal map "support" to this shader?
I need a normal map to this shader for it to look good and I couldn't figure it out myself so any help would be appreciated!
// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,)' with 'UnityObjectToClipPos()'
Shader "Custom/Planet" {
Properties {
_MainTex("Texture (RGB)", 2D) = "black" {}
_Color("Color", Color) = (0, 0, 0, 1)
_AtmoColor("Atmosphere Color", Color) = (0.5, 0.5, 1.0, 1)
_Size("Atmosphere Size", Range(0, 5)) = 0.12
_Falloff("Falloff", Float) = 2
_Transparency("Transparency", Float) = 1
}
SubShader {
Pass {
Name "AtmosphereBase"
Tags { "Queue" = "Transparent" "IgnoreProjector"="True" "RenderType" = "Transparent" }
Cull Back
ZWrite Off
Blend SrcAlpha OneMinusSrcAlpha
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#include "UnityCG.cginc"
uniform float4 _Color;
uniform float4 _AtmoColor;
uniform float _Size;
uniform float _Falloff;
uniform float _Transparency;
struct v2f {
float4 pos : SV_POSITION;
float3 normal : TEXCOORD0;
float2 atmofalloff : TEXCOORD1;
};
v2f vert(appdata_base v) {
v2f o;
v.vertex.xyz += v.normal * _Size;
o.pos = UnityObjectToClipPos (v.vertex);
o.normal = v.normal;
float3 viewDir = normalize(ObjSpaceViewDir(v.vertex));
o.atmofalloff = float2( pow(saturate(dot(viewDir, v.normal)), _Falloff), 0.5);
return o;
}
float4 frag(v2f i) : COLOR {
i.normal = normalize(i.normal);
float4 color = _AtmoColor;
color.a = i.atmofalloff.x * _Transparency * _Color;
return color;
}
ENDCG
}
// *** surface shader to render the planet itself ***
Name "PlanetBase"
Tags { "RenderType"="Opaque" }
CGPROGRAM
#pragma surface surf Lambert
#pragma target 3.0
uniform sampler2D _MainTex;
uniform float4 _Color;
struct Input {
float2 uv_MainTex;
};
void surf (Input IN, inout SurfaceOutput o) {
fixed4 c = tex2D (_MainTex, IN.uv_MainTex) * _Color;
o.Albedo = c.rgb;
o.Alpha = c.a;
}
ENDCG
// *** surface shader end ***
}
FallBack "Diffuse"
}
