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CrowdControl/Assets/3rd/UIParticleSystem/Shaders/UI Particle Add.shader

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Shader "UI Extensions/Particles/Additive" {
Properties {
_TintColor ("Tint Color", Color) = (0.5,0.5,0.5,0.5)
_MainTex ("Particle Texture", 2D) = "white" {}
_InvFade ("Soft Particles Factor", Range(0.01,3.0)) = 1.0
_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
_ColorMask ("Color Mask", Float) = 15
[Toggle(UNITY_UI_ALPHACLIP)] _UseUIAlphaClip ("Use Alpha Clip", Float) = 0
}
Category {
Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" "PreviewType"="Plane" "CanUseSpriteAtlas"="True" }
Blend SrcAlpha One
ColorMask RGB
Cull Off Lighting Off ZWrite Off
SubShader {
Stencil
{
Ref [_Stencil]
Comp [_StencilComp]
Pass [_StencilOp]
ReadMask [_StencilReadMask]
WriteMask [_StencilWriteMask]
}
Pass {
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma target 2.0
#pragma multi_compile_particles
#pragma multi_compile_fog
#include "UnityCG.cginc"
#include "UnityUI.cginc"
#pragma multi_compile __ UNITY_UI_ALPHACLIP
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;
UNITY_FOG_COORDS(1)
#ifdef SOFTPARTICLES_ON
float4 projPos : TEXCOORD2;
#endif
};
float4 _MainTex_ST;
v2f vert (appdata_t IN)
{
v2f v;
v.vertex = UnityObjectToClipPos(IN.vertex);
#ifdef SOFTPARTICLES_ON
v.projPos = ComputeScreenPos (v.vertex);
COMPUTE_EYEDEPTH(v.projPos.z);
#endif
v.color = IN.color;
v.texcoord = TRANSFORM_TEX(IN.texcoord,_MainTex);
UNITY_TRANSFER_FOG(v,v.vertex);
return v;
}
sampler2D_float _CameraDepthTexture;
float _InvFade;
fixed4 frag (v2f IN) : SV_Target
{
#ifdef SOFTPARTICLES_ON
float sceneZ = LinearEyeDepth (SAMPLE_DEPTH_TEXTURE_PROJ(_CameraDepthTexture, UNITY_PROJ_COORD(IN.projPos)));
float partZ = IN.projPos.z;
float fade = saturate (_InvFade * (sceneZ-partZ));
IN.color.a *= fade;
#endif
fixed4 col = 2.0f * IN.color * _TintColor * tex2D(_MainTex, IN.texcoord);
UNITY_APPLY_FOG_COLOR(IN.fogCoord, col, fixed4(0,0,0,0)); // fog towards black due to our blend mode
return col;
}
ENDCG
}
}
}
}