Fragment shader---纹理混合动画1

1、让星空运动起来

Shader "Custom/s_mohu" {


	Properties{
		_MainTex("MainTex", 2D) = ""{}
		_F("F",range(1,10)) = 4
	}

	SubShader{
		pass {
		CGPROGRAM
		#pragma vertex vert
		#pragma fragment frag
		#include "unitycg.cginc"
		#pragma target 3.0


		float tiling_x;
		float tiling_y;
		float offset_x;
		float offset_y;

		sampler2D _MainTex;
		//unity总是会帮我们传递这样一个值
		float4 _MainTex_ST;
		float _F;
		float _A;
		float _R;

		struct v2f {
			float4 pos:POSITION;
			float2 uv:TEXCOORD0;
			
		};


		v2f vert(appdata_base v) {
			v2f o;
			o.pos = mul(UNITY_MATRIX_MVP,v.vertex);
			o.uv = TRANSFORM_TEX(v.texcoord, _MainTex);
			
			return o;
		}

		fixed4 frag(v2f IN) :COLOR{
			float2 uv=IN.uv;
			float2 offset_uv = 0.05*sin(IN.uv*_F+_Time.x);
			uv += offset_uv;
			fixed4 color = tex2D(_MainTex,uv);
			return color;	
		}
		ENDCG
	}
	}
}
Shader "Custom/s_mohu" {


	Prop