87 lines
2.4 KiB
Plaintext
87 lines
2.4 KiB
Plaintext
// Author: Blastom
|
||
// 仅用于摄像机拍摄UI面板的RenderTexture
|
||
// 该材质会向颜色Buffer中写入Alpha值，因此不会在没有背景时被剔除
|
||
Shader "Zhanyou/Particles/ParticleAddDissolve"
|
||
{
|
||
Properties
|
||
{
|
||
_TintColor ("Tint Color", Color) = (0.5, 0.5, 0.5, 0.5)
|
||
_MainTex ("Particle Texture", 2D) = "white" {}
|
||
// 溶解贴图，RGB为颜色，A为溶解开始数值
|
||
_DissolveTex ("Dissolve Tex", 2D) = "white" {}
|
||
// 部分溶解的渐变区域值
|
||
_DissolveFade ("Dissolve Fade", Range(0, 1)) = 0.1
|
||
// 完全溶解的Alpha数值
|
||
_DissolveEnd ("Dissolve End", Range(0, 1)) = 0.5
|
||
}
|
||
Category {
|
||
Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" "PreviewType"="Plane" }
|
||
//BlendOp Add, Max
|
||
Blend One One//, One One
|
||
Cull Off
|
||
ColorMask RGB
|
||
Lighting Off
|
||
ZWrite Off
|
||
|
||
SubShader {
|
||
Pass {
|
||
CGPROGRAM
|
||
#pragma vertex vert
|
||
#pragma fragment frag
|
||
#pragma multi_compile_fog
|
||
#pragma multi_compile_particles
|
||
#include "UnityCG.cginc"
|
||
|
||
sampler2D _MainTex;
|
||
fixed4 _TintColor;
|
||
|
||
struct appdata_t {
|
||
float4 vertex : POSITION;
|
||
fixed4 color : COLOR;
|
||
float2 texcoord : TEXCOORD0;
|
||
};
|
||
|
||
struct v2f {
|
||
float4 vertex : SV_POSITION;
|
||
fixed4 color : COLOR;
|
||
float2 texcoord : TEXCOORD0;
|
||
float2 dissolveCoord : TEXCOORD1;
|
||
UNITY_FOG_COORDS(2)
|
||
};
|
||
|
||
uniform float4 _MainTex_ST;
|
||
uniform sampler2D _DissolveTex;
|
||
uniform half4 _DissolveTex_ST;
|
||
uniform half _DissolveFade;
|
||
uniform half _DissolveEnd;
|
||
|
||
v2f vert (appdata_t v)
|
||
{
|
||
v2f o;
|
||
o.vertex = UnityObjectToClipPos(v.vertex);
|
||
o.color = v.color;
|
||
o.texcoord = TRANSFORM_TEX(v.texcoord, _MainTex);
|
||
o.dissolveCoord = TRANSFORM_TEX(v.texcoord, _DissolveTex);
|
||
UNITY_TRANSFER_FOG(o, o.vertex);
|
||
return o;
|
||
}
|
||
fixed4 frag (v2f i) : SV_Target
|
||
{
|
||
fixed4 col = 2.0f * i.color * _TintColor * tex2D(_MainTex, i.texcoord);
|
||
fixed4 dissolve = tex2D(_DissolveTex, i.dissolveCoord);
|
||
if (dissolve.a <= _DissolveEnd + _DissolveFade)
|
||
{
|
||
float alpha = max(0.0, (dissolve.a - _DissolveEnd) / _DissolveFade);
|
||
col.a *= alpha;
|
||
col.rgb = lerp(lerp(dissolve.rgb, col.rgb, alpha), dissolve.rgb, alpha * alpha);
|
||
}
|
||
col.rgb *= col.a;
|
||
//col.a = 0.004;
|
||
UNITY_APPLY_FOG_COLOR(i.fogCoord, col, fixed4(0,0,0,0)); // fog towards black due to our blend mode
|
||
return col;
|
||
}
|
||
ENDCG
|
||
}
|
||
}
|
||
}
|
||
} |