167 lines
3.3 KiB
Plaintext
167 lines
3.3 KiB
Plaintext
// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
|
|
|
|
Shader "Hidden/TenkokuSunShafts" {
|
|
Properties {
|
|
_MainTex ("Base", 2D) = "" {}
|
|
_ColorBuffer ("Color", 2D) = "" {}
|
|
_Skybox ("Skybox", 2D) = "" {}
|
|
}
|
|
|
|
CGINCLUDE
|
|
|
|
#include "UnityCG.cginc"
|
|
|
|
struct v2f {
|
|
float4 pos : SV_POSITION;
|
|
float2 uv : TEXCOORD0;
|
|
//#if UNITY_UV_STARTS_AT_TOP
|
|
float2 uv1 : TEXCOORD1;
|
|
//#endif
|
|
};
|
|
|
|
struct v2f_radial {
|
|
float4 pos : SV_POSITION;
|
|
float2 uv : TEXCOORD0;
|
|
float2 blurVector : TEXCOORD1;
|
|
};
|
|
|
|
sampler2D _MainTex;
|
|
sampler2D _ColorBuffer;
|
|
sampler2D _Skybox;
|
|
sampler2D_float _CameraDepthTexture;
|
|
|
|
uniform half4 _SunThreshold;
|
|
|
|
uniform half4 _ColorBlock;
|
|
uniform half4 _SunColor;
|
|
uniform half4 _TintColor;
|
|
uniform half4 _BlurRadius4;
|
|
uniform half4 _SunPosition;
|
|
uniform half4 _MainTex_TexelSize;
|
|
float4 _Tenkoku_overcastColor;
|
|
|
|
#define SAMPLES_FLOAT 5.0f
|
|
#define SAMPLES_INT 5
|
|
|
|
v2f vert( appdata_img v ) {
|
|
v2f o;
|
|
o.pos = UnityObjectToClipPos(v.vertex);
|
|
o.uv = v.texcoord.xy;
|
|
|
|
#if UNITY_UV_STARTS_AT_TOP
|
|
o.uv1 = v.texcoord.xy;
|
|
if (_MainTex_TexelSize.y < 0)
|
|
o.uv1.y = 1-o.uv1.y;
|
|
#endif
|
|
|
|
return o;
|
|
}
|
|
|
|
half4 fragScreen(v2f i) : SV_Target {
|
|
half4 colorA = tex2D (_MainTex, i.uv.xy);
|
|
#if UNITY_UV_STARTS_AT_TOP
|
|
half4 colorB = tex2D (_ColorBuffer, i.uv1.xy);
|
|
#else
|
|
half4 colorB = tex2D (_ColorBuffer, i.uv.xy);
|
|
#endif
|
|
half4 depthMask = saturate (colorB * lerp(_SunColor,_SunColor*_TintColor,_TintColor.a));
|
|
return 1.0f - (1.0f-colorA) * (1.0f-depthMask);
|
|
}
|
|
|
|
|
|
v2f_radial vert_radial( appdata_img v ) {
|
|
v2f_radial o;
|
|
o.pos = UnityObjectToClipPos(v.vertex);
|
|
|
|
o.uv.xy = v.texcoord.xy;
|
|
o.blurVector = (_SunPosition.xy - v.texcoord.xy) * _BlurRadius4.xy;
|
|
|
|
return o;
|
|
}
|
|
|
|
half4 frag_radial(v2f_radial i) : SV_Target
|
|
{
|
|
half4 color = half4(0,0,0,0);
|
|
for(int j = 0; j < SAMPLES_INT; j++)
|
|
{
|
|
half4 tmpColor = tex2D(_MainTex, i.uv.xy);
|
|
color += tmpColor;
|
|
i.uv.xy += i.blurVector;
|
|
}
|
|
return color / SAMPLES_FLOAT;
|
|
}
|
|
|
|
half TransformColor (half4 skyboxValue) {
|
|
return dot(max(skyboxValue.rgb - _ColorBlock.rgb, half3(0,0,0)), half3(1,1,1)); // threshold and convert to greyscale
|
|
}
|
|
|
|
half4 frag_depth (v2f i) : SV_Target {
|
|
#if UNITY_UV_STARTS_AT_TOP
|
|
float depthSample = SAMPLE_DEPTH_TEXTURE(_CameraDepthTexture, i.uv1.xy);
|
|
#else
|
|
float depthSample = SAMPLE_DEPTH_TEXTURE(_CameraDepthTexture, i.uv.xy);
|
|
#endif
|
|
|
|
half4 tex = tex2D (_MainTex, i.uv.xy);
|
|
|
|
depthSample = Linear01Depth (depthSample);
|
|
|
|
// consider maximum radius
|
|
#if UNITY_UV_STARTS_AT_TOP
|
|
half2 vec = _SunPosition.xy - i.uv1.xy;
|
|
#else
|
|
half2 vec = _SunPosition.xy - i.uv.xy;
|
|
#endif
|
|
half dist = saturate (_SunPosition.w - length (vec.xy));
|
|
|
|
half4 outColor = 0;
|
|
|
|
|
|
// consider shafts blockers
|
|
if (depthSample > 0.99)
|
|
outColor = TransformColor (tex) * dist;
|
|
|
|
|
|
|
|
return outColor;
|
|
}
|
|
|
|
|
|
|
|
|
|
ENDCG
|
|
|
|
Subshader {
|
|
|
|
Pass {
|
|
ZTest Always Cull Off ZWrite Off
|
|
CGPROGRAM
|
|
#pragma vertex vert
|
|
#pragma fragment fragScreen
|
|
ENDCG
|
|
}
|
|
|
|
Pass {
|
|
ZTest Always Cull Off ZWrite Off
|
|
CGPROGRAM
|
|
#pragma vertex vert_radial
|
|
#pragma fragment frag_radial
|
|
ENDCG
|
|
}
|
|
|
|
Pass {
|
|
ZTest Always Cull Off ZWrite Off
|
|
CGPROGRAM
|
|
#pragma vertex vert
|
|
#pragma fragment frag_depth
|
|
ENDCG
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
Fallback off
|
|
|
|
}
|