Shadow Caster (最小構成)

ShadowCaster.shader

        Pass {
            Tags{ "LightMode"="ShadowCaster" }

            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            #pragma multi_compile_shadowcaster

            #include "UnityCG.cginc"

            struct appdata {
                float4 vertex : POSITION;
                float3 normal : NORMAL;
                float2 texcoord : TEXCOORD0;
            };

            struct v2f {
                V2F_SHADOW_CASTER;
            };

            v2f vert (appdata v) {
                v2f o;
                TRANSFER_SHADOW_CASTER_NORMALOFFSET(o)
                return o;
            }

            fixed4 frag (v2f i) : SV_Target {
                SHADOW_CASTER_FRAGMENT(i)
            }
            ENDCG
        }