Hey, I'm forced to not use the default premultiplied alpha and and just using regular alpha. It works with the Sprites/default shader but I was using the skeleton Fill shader to change color on my skeletons. I tried messing with float4 frag (VertexOutput i) : COLOR but couldn't get the right effect. Any hints?
// - Requires PMA texture.
// - Unlit + no shadow
// - Premultiplied Alpha Blending (One OneMinusSrcAlpha)
// - Double-sided, no depth
// - Can render a sprite with a solid color overlay (_FillColor). Use _FillPhase to adjust color overlay amount.
Shader "Spine/Skeleton Fill" {
Properties {
_FillColor ("FillColor", Color) = (1,1,1,1)
_FillPhase ("FillPhase", Range(0, 1)) = 0
[NoScaleOffset]_MainTex ("MainTex", 2D) = "white" {}
}
SubShader {
Tags { "IgnoreProjector"="True" "Queue"="Transparent" "RenderType"="Transparent" "PreviewType"="Plane" }
Blend One OneMinusSrcAlpha
Cull Off
ZWrite Off
Lighting Off
Pass {
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#include "UnityCG.cginc"
sampler2D _MainTex;
float4 _FillColor;
float _FillPhase;
struct VertexInput {
float4 vertex : POSITION;
float2 uv : TEXCOORD0;
float4 vertexColor : COLOR;
};
struct VertexOutput {
float4 pos : SV_POSITION;
float2 uv : TEXCOORD0;
float4 vertexColor : COLOR;
};
VertexOutput vert (VertexInput v) {
VertexOutput o = (VertexOutput)0;
o.uv = v.uv;
o.vertexColor = v.vertexColor;
o.pos = UnityObjectToClipPos(v.vertex); // Unity 5.6
return o;
}
float4 frag (VertexOutput i) : COLOR {
float4 rawColor = tex2D(_MainTex,i.uv);
float finalAlpha = (rawColor.a * i.vertexColor.a);
float3 finalColor = lerp((rawColor.rgb * i.vertexColor.rgb), (_FillColor.rgb * finalAlpha), _FillPhase); // make sure to PMA _FillColor.
return fixed4(finalColor, finalAlpha);
}
ENDCG
}
}
FallBack "Diffuse"
}