我要评论本文实例为大家分享了unity3d ui利用shader添加效果的具体代码，供大家参考，具体内容如下
// upgrade note: replaced 'mul(unity_matrix_mvp,*)' with 'unityobjecttoclippos(*)'
shader "ui/unlit/flowlight"
{
properties
{
[perrendererdata] _maintex("sprite texture", 2d) = "white" {}
_color("tint", color) = (1, 1, 1, 1)
[materialtoggle] _offset("offset", float) = 0
[materialtoggle] pixelsnap("pixel snap", float) = 0
/* flowlight */
_flowlightmasktex("mask texture", 2d) = "white" {}
_flowlighttex("add move texture", 2d) = "white" {}
_flowlightcolor("flowlight color", color) = (0, 0, 0, 1)
_power("power", float) = 1
_speedx("speedx", float) = 1
_speedy("speedy", float) = 0
/* --------- */
/* ui */
_stencilcomp("stencil comparison", float) = 8
_stencil("stencil id", float) = 0
_stencilop("stencil operation", float) = 0
_stencilwritemask("stencil write mask", float) = 255
_stencilreadmask("stencil read mask", float) = 255
/* -- */
}
subshader
{
tags
{
"queue" = "transparent"
"ignoreprojector" = "true"
"rendertype" = "transparent"
"previewtype" = "plane"
"canusespriteatlas" = "true"
}
cull off
lighting off
zwrite off
blend one oneminussrcalpha
/* ui */
stencil
{
ref[_stencil]
comp[_stencilcomp]
pass[_stencilop]
readmask[_stencilreadmask]
writemask[_stencilwritemask]
}
/* -- */
pass
{
cgprogram
#pragma vertex vert
#pragma fragment frag
#pragma multi_compile _ pixelsnap_on
#include "unitycg.cginc"
struct appdata_t
{
float4 vertex : position;
float4 color : color;
float2 texcoord : texcoord0;
};
struct v2f
{
float4 vertex : sv_position;
fixed4 color : color;
half2 texcoord : texcoord0;
/* flowlight */
half2 texflowlight : texcoord1;
/* --------- */
};
fixed4 _color;
/* flowlight */
fixed4 _flowlightcolor;
float _power;
sampler2d _flowlighttex;
fixed4 _flowlighttex_st;
sampler2d _flowlightmasktex;
fixed4 _flowlightmasktex_st;
fixed _speedx;
fixed _speedy;
fixed x = 0;
float _offset;
/* --------- */
v2f vert(appdata_t in)
{
v2f out;
out.vertex = unityobjecttoclippos(in.vertex);
out.texcoord = in.texcoord;
/* flowlight */
out.texflowlight = transform_tex(in.texcoord, _flowlighttex);
out.texflowlight.x += _time * _speedx;
out.texflowlight.y += _time * _speedy;
out.color = in.color * _color;
#ifdef pixelsnap_on
out.vertex = unitypixelsnap(out.vertex);
#endif
return out;
}
sampler2d _maintex;
fixed4 frag(v2f in) : sv_target
{
fixed4 c = tex2d(_maintex, in.texcoord)*in.color;
fixed4 cmask = tex2d(_flowlightmasktex, in.texcoord);
if (cmask.a != 0)
{
/* flowlight */
fixed4 cadd = tex2d(_flowlighttex, in.texflowlight) * _power;
cadd.rgb *= c.rgb;
c.rgb += cadd.rgb;
}
c.rgb *= c.a;
/* --------- */
return c;
}
endcg
}
}
}
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移动技术网。
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