111 lines
2.8 KiB
HLSL
111 lines
2.8 KiB
HLSL
//Based on unity builtin shader
|
|
#ifndef MK_GLOW_SPRITE
|
|
#define MK_GLOW_SPRITE
|
|
|
|
#ifdef _EMISSION_ONLY
|
|
#define EMISSION_ONLY
|
|
#endif
|
|
|
|
#include "../Inc/Common.hlsl"
|
|
#include "UnityCG.cginc"
|
|
|
|
#ifdef UNITY_INSTANCING_ENABLED
|
|
|
|
UNITY_INSTANCING_BUFFER_START(PerDrawSprite)
|
|
UNITY_DEFINE_INSTANCED_PROP(fixed4, unity_SpriteRendererColorArray)
|
|
UNITY_DEFINE_INSTANCED_PROP(fixed2, unity_SpriteFlipArray)
|
|
UNITY_INSTANCING_BUFFER_END(PerDrawSprite)
|
|
|
|
#define _RendererColor UNITY_ACCESS_INSTANCED_PROP(PerDrawSprite, unity_SpriteRendererColorArray)
|
|
#define _Flip UNITY_ACCESS_INSTANCED_PROP(PerDrawSprite, unity_SpriteFlipArray)
|
|
|
|
#endif
|
|
|
|
CBUFFER_START(UnityPerDrawSprite)
|
|
#ifndef UNITY_INSTANCING_ENABLED
|
|
fixed4 _RendererColor;
|
|
fixed2 _Flip;
|
|
#endif
|
|
float _EnableExternalAlpha;
|
|
CBUFFER_END
|
|
|
|
fixed4 _Color;
|
|
uniform fixed3 _EmissionColor;
|
|
uniform sampler2D _EmissionMap;
|
|
|
|
struct appdata_t
|
|
{
|
|
float4 vertex : POSITION;
|
|
float4 color : COLOR;
|
|
float2 texcoord : TEXCOORD0;
|
|
UNITY_VERTEX_INPUT_INSTANCE_ID
|
|
};
|
|
|
|
struct v2f
|
|
{
|
|
float4 vertex : SV_POSITION;
|
|
fixed4 color : COLOR;
|
|
float2 texcoord : TEXCOORD0;
|
|
UNITY_VERTEX_OUTPUT_STEREO
|
|
};
|
|
|
|
inline float4 UnityFlipSprite(in float3 pos, in fixed2 flip)
|
|
{
|
|
return float4(pos.xy * flip, pos.z, 1.0);
|
|
}
|
|
|
|
v2f SpriteVert(appdata_t IN)
|
|
{
|
|
v2f OUT;
|
|
|
|
UNITY_SETUP_INSTANCE_ID (IN);
|
|
UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(OUT);
|
|
|
|
OUT.vertex = UnityFlipSprite(IN.vertex, _Flip);
|
|
OUT.vertex = UnityObjectToClipPos(OUT.vertex);
|
|
OUT.texcoord = IN.texcoord;
|
|
OUT.color = IN.color * _Color * _RendererColor;
|
|
|
|
#ifdef PIXELSNAP_ON
|
|
OUT.vertex = UnityPixelSnap (OUT.vertex);
|
|
#endif
|
|
|
|
return OUT;
|
|
}
|
|
|
|
sampler2D _MainTex;
|
|
sampler2D _AlphaTex;
|
|
|
|
fixed4 SampleSpriteTexture (sampler2D tex, float2 uv)
|
|
{
|
|
fixed4 color = tex2D (tex, uv);
|
|
|
|
#if ETC1_EXTERNAL_ALPHA
|
|
fixed4 alpha = tex2D (_AlphaTex, uv);
|
|
color.a = lerp (color.a, alpha.r, _EnableExternalAlpha);
|
|
#endif
|
|
|
|
return color;
|
|
}
|
|
|
|
fixed4 SpriteFrag(v2f IN) : SV_Target
|
|
{
|
|
fixed4 c = SampleSpriteTexture (_MainTex, IN.texcoord) * IN.color;
|
|
fixed4 g = SampleSpriteTexture (_EmissionMap, IN.texcoord);
|
|
c.rgb += g.rgb * _EmissionColor * g.a;
|
|
c.rgb *= c.a;
|
|
return c;
|
|
}
|
|
|
|
#ifdef EMISSION_ONLY
|
|
fixed4 SpriteNoMainFrag(v2f IN) : SV_Target
|
|
{
|
|
fixed4 g = SampleSpriteTexture (_EmissionMap, IN.texcoord);
|
|
g.a = SampleSpriteTexture (_MainTex, IN.texcoord).a * IN.color.a;
|
|
g.rgb *= _EmissionColor * g.a;
|
|
return g;
|
|
}
|
|
#endif
|
|
|
|
#endif
|