Unity3D使用Shader实现腐蚀消失
本片shader实现的效果是模型腐蚀消失,且腐蚀的边缘大小可以调、颜色可调。效果图如下:
创新互联建站专注于网站建设|网页维护|优化|托管以及网络推广,积累了大量的网站设计与制作经验,为许多企业提供了网站定制设计服务,案例作品覆盖成都履带搅拌车等行业。能根据企业所处的行业与销售的产品,结合品牌形象的塑造,量身制作品质网站。
设置面板如下:
使用时需要给ClipMask参数给一张噪点图,设置合适的cliplinesize和cliplinecolor,然后调整clipalpha就可以了。
原理是通过获取噪点图上对应的颜色,转换成灰度,然后用灰度与clipalpha对比,如果大于则被剪裁掉。
shader实现如下:
Shader "XM/CorrosionEffect" { Properties { _Color ("Color", Color) = (1,1,1,1) _MainTex ("Albedo (RGB)", 2D) = "white" {} _Glossiness ("Smoothness", Range(0,1)) = 0.5 _Metallic ("Metallic", Range(0,1)) = 0.0 _ClipMaskTex ("Clip Mask", 2D) = "white" {} _ClipGray ("Clip Alpha", Range(0.0,1.0)) = 0.0 _ClipLineSize ("Clip Line Size", Range(0,1)) = 0.0 _ClipLineColor("Clip Line Color", Color) = (1,1,1,1) } 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 sampler2D _MainTex; sampler2D _ClipMaskTex; struct Input { float2 uv_MainTex; }; half _Glossiness; half _Metallic; fixed4 _Color; fixed _ClipGray; fixed _ClipLineSize; fixed4 _ClipLineColor; void surf (Input IN, inout SurfaceOutputStandard o) { fixed4 m = tex2D (_ClipMaskTex, IN.uv_MainTex); fixed gray = Luminance(m.rgb); if(gray >= _ClipGray) { clip(-1); } fixed4 c; if(gray >= _ClipGray - _ClipLineSize) { c = _ClipLineColor; } else { // Albedo comes from a texture tinted by color c = tex2D (_MainTex, IN.uv_MainTex) * _Color; } o.Albedo = c.rgb; // Metallic and smoothness come from slider variables o.Metallic = _Metallic; o.Smoothness = _Glossiness; o.Alpha = c.a; } ENDCG } FallBack "Diffuse" }
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持创新互联。
分享标题:Unity3D使用Shader实现腐蚀消失
网站URL:http://myzitong.com/article/ipdesp.html