130 lines
4.4 KiB
Plaintext
130 lines
4.4 KiB
Plaintext
Shader "Hidden/Light2D-Shape"
|
|
{
|
|
Properties
|
|
{
|
|
[HideInInspector] _SrcBlend("__src", Float) = 1.0
|
|
[HideInInspector] _DstBlend("__dst", Float) = 0.0
|
|
[Enum(UnityEngine.Rendering.CompareFunction)] _HandleZTest ("_HandleZTest", Int) = 4
|
|
}
|
|
|
|
SubShader
|
|
{
|
|
Tags { "Queue" = "Transparent" "RenderType" = "Transparent" "RenderPipeline" = "UniversalPipeline" }
|
|
|
|
Pass
|
|
{
|
|
Blend [_SrcBlend][_DstBlend]
|
|
ZWrite Off
|
|
ZTest [_HandleZTest]
|
|
Cull Off
|
|
|
|
HLSLPROGRAM
|
|
#pragma vertex vert
|
|
#pragma fragment frag
|
|
#pragma multi_compile_local USE_NORMAL_MAP __
|
|
#pragma multi_compile_local USE_ADDITIVE_BLENDING __
|
|
#pragma multi_compile_local USE_VOLUMETRIC __
|
|
#pragma multi_compile USE_SHAPE_LIGHT_TYPE_0 __
|
|
#pragma multi_compile USE_SHAPE_LIGHT_TYPE_1 __
|
|
#pragma multi_compile USE_SHAPE_LIGHT_TYPE_2 __
|
|
#pragma multi_compile USE_SHAPE_LIGHT_TYPE_3 __
|
|
|
|
|
|
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
|
|
#include "Packages/com.unity.render-pipelines.universal/Shaders/2D/Include/LightingUtility.hlsl"
|
|
|
|
struct Attributes
|
|
{
|
|
float3 positionOS : POSITION;
|
|
float4 color : COLOR;
|
|
float2 uv : TEXCOORD0;
|
|
};
|
|
|
|
struct Varyings
|
|
{
|
|
float4 positionCS : SV_POSITION;
|
|
half4 color : COLOR;
|
|
half2 uv : TEXCOORD0;
|
|
|
|
SHADOW_COORDS(TEXCOORD1)
|
|
NORMALS_LIGHTING_COORDS(TEXCOORD2, TEXCOORD3)
|
|
LIGHT_OFFSET(TEXCOORD4)
|
|
};
|
|
|
|
UNITY_LIGHT2D_DATA
|
|
|
|
half _InverseHDREmulationScale;
|
|
|
|
TEXTURE2D(_CookieTex); // This can either be a sprite texture uv or a falloff texture
|
|
SAMPLER(sampler_CookieTex);
|
|
|
|
TEXTURE2D(_FalloffLookup);
|
|
SAMPLER(sampler_FalloffLookup);
|
|
|
|
NORMALS_LIGHTING_VARIABLES
|
|
SHADOW_VARIABLES
|
|
|
|
Varyings vert(Attributes a)
|
|
{
|
|
Varyings o = (Varyings)0;
|
|
o.lightOffset = a.color;
|
|
PerLight2D light = GetPerLight2D(o.lightOffset);
|
|
|
|
float3 positionOS = a.positionOS;
|
|
|
|
positionOS.x = positionOS.x + light.FalloffDistance * a.color.r;
|
|
positionOS.y = positionOS.y + light.FalloffDistance * a.color.g;
|
|
|
|
o.positionCS = TransformObjectToHClip(positionOS);
|
|
o.color = light.Color * _InverseHDREmulationScale;
|
|
o.color.a = a.color.a;
|
|
#if USE_VOLUMETRIC
|
|
o.color.a = light.Color.a * light.VolumeOpacity;
|
|
#endif
|
|
|
|
// If Sprite use UV.
|
|
o.uv = (light.LightType == 2) ? a.uv : float2(a.color.a, light.FalloffIntensity);
|
|
|
|
float4 worldSpacePos;
|
|
worldSpacePos.xyz = TransformObjectToWorld(positionOS);
|
|
worldSpacePos.w = 1;
|
|
TRANSFER_NORMALS_LIGHTING(o, worldSpacePos, light.Position.xyz, light.Position.w)
|
|
TRANSFER_SHADOWS(o)
|
|
|
|
return o;
|
|
}
|
|
|
|
FragmentOutput frag(Varyings i) : SV_Target
|
|
{
|
|
PerLight2D light = GetPerLight2D(i.lightOffset);
|
|
half4 lightColor = i.color;
|
|
|
|
if (light.LightType == 2)
|
|
{
|
|
half4 cookie = SAMPLE_TEXTURE2D(_CookieTex, sampler_CookieTex, i.uv);
|
|
#if USE_ADDITIVE_BLENDING
|
|
lightColor *= cookie * cookie.a;
|
|
#else
|
|
lightColor *= cookie;
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
#if USE_ADDITIVE_BLENDING
|
|
lightColor *= SAMPLE_TEXTURE2D(_FalloffLookup, sampler_FalloffLookup, i.uv).r;
|
|
#elif USE_VOLUMETRIC
|
|
lightColor.a = i.color.a * SAMPLE_TEXTURE2D(_FalloffLookup, sampler_FalloffLookup, i.uv).r;
|
|
#else
|
|
lightColor.a = SAMPLE_TEXTURE2D(_FalloffLookup, sampler_FalloffLookup, i.uv).r;
|
|
#endif
|
|
}
|
|
|
|
APPLY_NORMALS_LIGHTING(i, lightColor, light.Position.xyz, light.Position.w);
|
|
APPLY_SHADOWS(i, lightColor, light.ShadowIntensity);
|
|
return ToFragmentOutput(lightColor);
|
|
}
|
|
ENDHLSL
|
|
}
|
|
}
|
|
}
|