物体表面滚动纹理

Van T

于 2016-01-11 11:46:03 发布

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CC 4.0 BY-SA版权

分类专栏： Shader Unity 文章标签： Unity3D

本文链接：https://blog.youkuaiyun.com/h570768995/article/details/50496049

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本文深入探讨了Shader 'Custom/Roll'在实现瀑布、河流、熔岩流等动态视觉效果中的应用，通过调整属性如主色调、纹理滚动速度，实现自然流畅的动画效果。

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Shader "Custom/Roll" {
	Properties {
		_MainTint ("Diffuse Tint",Color) = (1,1,1,1)
	    _MainTex("Base (RGB)",2D) = "white"{}
		_ScrollXSpeed("X Scroll Speed",Range(0,10)) = 2
		_ScrollYSpeed("Y Scroll Speed",Range(0,10)) = 2

	}
	SubShader {
		Tags { "RenderType"="Opaque" }
		LOD 200
		

		CGPROGRAM
		// Physically based Standard lighting model, and enable shadows on all light types
		#pragma surface surf Standard fullforwardshadows

		// Use shader model 3.0 target, to get nicer looking lighting
		#pragma target 3.0
			fixed4 _MainTint;
		fixed _ScrollXSpeed;
		fixed _ScrollYSpeed;
		sampler2D _MainTex;

		struct Input {
			float2 uv_MainTex;
		};

		half _Glossiness;
		half _Metallic;
		fixed4 _Color;

		void surf (Input IN, inout SurfaceOutputStandard o) {

			fixed2 scrolledUV = IN.uv_MainTex;
			fixed xScrollValue = _ScrollXSpeed * _Time;
			fixed yScrollValue = _ScrollYSpeed * _Time;

			scrolledUV += fixed2(xScrollValue, yScrollValue);

			half4 c = tex2D(_MainTex, scrolledUV);
			o.Albedo = c.rgb * _MainTint;
			o.Alpha = c.a;
		}
		ENDCG
	}
	FallBack "Diffuse"
}

可用作瀑布、河流、熔岩流等效果。