campfire/Assets/SteamVR/InteractionSystem/Teleport/Shaders/Highlight.shader
2020-04-29 20:40:05 +03:00

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//======= Copyright (c) Valve Corporation, All rights reserved. ===============
//
// Purpose: Used for the teleport markers
//
//=============================================================================
// UNITY_SHADER_NO_UPGRADE
Shader "Valve/VR/Highlight"
{
Properties
{
_TintColor( "Tint Color", Color ) = ( 1, 1, 1, 1 )
_SeeThru( "SeeThru", Range( 0.0, 1.0 ) ) = 0.25
_Darken( "Darken", Range( 0.0, 1.0 ) ) = 0.0
_MainTex( "MainTex", 2D ) = "white" {}
}
//-------------------------------------------------------------------------------------------------------------------------------------------------------------
CGINCLUDE
// Pragmas --------------------------------------------------------------------------------------------------------------------------------------------------
#pragma target 5.0
#pragma only_renderers d3d11 vulkan glcore
#pragma exclude_renderers gles
// Includes -------------------------------------------------------------------------------------------------------------------------------------------------
#include "UnityCG.cginc"
// Structs --------------------------------------------------------------------------------------------------------------------------------------------------
struct VertexInput
{
float4 vertex : POSITION;
float2 uv : TEXCOORD0;
fixed4 color : COLOR;
};
struct VertexOutput
{
float2 uv : TEXCOORD0;
float4 vertex : SV_POSITION;
fixed4 color : COLOR;
};
// Globals --------------------------------------------------------------------------------------------------------------------------------------------------
sampler2D _MainTex;
float4 _MainTex_ST;
float4 _TintColor;
float _SeeThru;
float _Darken;
// MainVs ---------------------------------------------------------------------------------------------------------------------------------------------------
VertexOutput MainVS( VertexInput i )
{
VertexOutput o;
#if UNITY_VERSION >= 540
o.vertex = UnityObjectToClipPos(i.vertex);
#else
o.vertex = mul(UNITY_MATRIX_MVP, i.vertex);
#endif
o.uv = TRANSFORM_TEX( i.uv, _MainTex );
o.color = i.color;
return o;
}
// MainPs ---------------------------------------------------------------------------------------------------------------------------------------------------
float4 MainPS( VertexOutput i ) : SV_Target
{
float4 vTexel = tex2D( _MainTex, i.uv ).rgba;
float4 vColor = vTexel.rgba * _TintColor.rgba * i.color.rgba;
vColor.rgba = saturate( 2.0 * vColor.rgba );
float flAlpha = vColor.a;
vColor.rgb *= vColor.a;
vColor.a = lerp( 0.0, _Darken, flAlpha );
return vColor.rgba;
}
// MainPs ---------------------------------------------------------------------------------------------------------------------------------------------------
float4 SeeThruPS( VertexOutput i ) : SV_Target
{
float4 vTexel = tex2D( _MainTex, i.uv ).rgba;
float4 vColor = vTexel.rgba * _TintColor.rgba * i.color.rgba * _SeeThru;
vColor.rgba = saturate( 2.0 * vColor.rgba );
float flAlpha = vColor.a;
vColor.rgb *= vColor.a;
vColor.a = lerp( 0.0, _Darken, flAlpha * _SeeThru );
return vColor.rgba;
}
ENDCG
SubShader
{
Tags{ "Queue" = "Transparent" "RenderType" = "Transparent" }
LOD 100
// Behind Geometry ---------------------------------------------------------------------------------------------------------------------------------------------------
Pass
{
// Render State ---------------------------------------------------------------------------------------------------------------------------------------------
Blend One OneMinusSrcAlpha
Cull Off
ZWrite Off
ZTest Greater
CGPROGRAM
#pragma vertex MainVS
#pragma fragment SeeThruPS
ENDCG
}
Pass
{
// Render State ---------------------------------------------------------------------------------------------------------------------------------------------
Blend One OneMinusSrcAlpha
Cull Off
ZWrite Off
ZTest LEqual
CGPROGRAM
#pragma vertex MainVS
#pragma fragment MainPS
ENDCG
}
}
}