gradient.shader

Shader "Custom/Gradient" {
        Properties {
        		
                _direction("Direction",Range(0,1)) = 0
                _color1 ("Color 1", Color) = (1,1,1,1)
                _color2 ("Color 2", Color) = (0,0,1,1)
        }
        SubShader {
                Pass{
                        CGPROGRAM
                        #pragma vertex vert
                        #pragma fragment frag
                        float4 _color1;
                        float4 _color2;
                        float4 _finalColor;
                        float _direction;
                       
                        struct appdata {
                                float4 vertex : POSITION;
                                float4 tex : TEXCOORD0;
                                float3 normal : NORMAL;
                        };
                        struct v2f {
                                float4 vertex : TEXCOORD;
                                float4 pos : POSITION;
                                float4 color : COLOR;
                        };
                        v2f vert(appdata v) {
                                v2f o;
                                o.pos = mul(UNITY_MATRIX_MVP, v.vertex);
                                o.vertex = v.tex;
                                return o;
                        };
                        half4 frag(v2f i) : COLOR {
                                _finalColor.a = 1;
                                _finalColor.r = ((_color1.r*i.vertex.y*_direction+_color1.r*i.vertex.x*(1-_direction))+(_color2.r*(1-i.vertex.y)*_direction+_color2.r*(1-i.vertex.x)*(1-_direction)));
                                _finalColor.g = ((_color1.g*i.vertex.y*_direction+_color1.g*i.vertex.x*(1-_direction))+(_color2.g*(1-i.vertex.y)*_direction+_color2.g*(1-i.vertex.x)*(1-_direction)));
                                _finalColor.b = ((_color1.b*i.vertex.y*_direction+_color1.b*i.vertex.x*(1-_direction))+(_color2.b*(1-i.vertex.y)*_direction+_color2.b*(1-i.vertex.x)*(1-_direction)));
                                return _finalColor;
                        };
                        ENDCG
                }
        }
        FallBack "Diffuse"
}