I need some help I'm trying to put together a particle shader using the surface shader mixed with the soft particle shader and It says the "Redefinition of _MainTex_ST at line 126 (d3d11)" but the code is only 117 lines long. could I have some help with this. I doubt I'm even doing this correctly and need help doing this correctly.
thank you.
Shader "Particles/SurfaceParticle(Soft)" {
Properties {
_TintColor ("Tint Color", Color) = (0.5,0.5,0.5,0.5)
_MainTex ("Particle Texture", 2D) = "white" {}
_InvFade ("Soft Particles Factor", Range(0.01,3.0)) = 1.0
}
Category {
//Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" }
Blend SrcAlpha OneMinusSrcAlpha
AlphaTest Greater .01
ColorMask RGB
Cull Off Lighting On ZWrite Off Fog { Color (0,0,0,0) }
BindChannels {
Bind "Color", color
Bind "Vertex", vertex
Bind "TexCoord", texcoord
}
SubShader {
Tags { "Queue"="Transparent" "RenderType"="Transparent" }
CGPROGRAM
//#pragma surface surf SimpleLambert
#pragma surface surf Lambert alpha
half4 LightingSimpleLambert (SurfaceOutput s, half3 lightDir, half atten) {
half NdotL = dot (s.Normal, lightDir);
half4 c;
c.rgb = s.Albedo * _LightColor0.rgb * (NdotL * atten);
c.a = s.Alpha;
return c;
}
struct Input {
float2 uv_MainTex;
};
sampler2D _MainTex;
fixed4 _TintColor;
void surf (Input IN, inout SurfaceOutput o) {
o.Albedo = tex2D (_MainTex, IN.uv_MainTex).rgb;
o.Alpha = tex2D (_MainTex, IN.uv_MainTex).a;
}
struct appdata_t {
float4 vertex : POSITION;
fixed4 color : COLOR;
float2 texcoord : TEXCOORD0;
};
struct v2f {
float4 vertex : POSITION;
fixed4 color : COLOR;
float2 texcoord : TEXCOORD0;
#ifdef SOFTPARTICLES_ON
float4 projPos : TEXCOORD1;
#endif
};
float4 _MainTex_ST;
v2f vert (appdata_t v)
{
v2f o;
o.vertex = mul(UNITY_MATRIX_MVP, v.vertex);
#ifdef SOFTPARTICLES_ON
o.projPos = ComputeScreenPos (o.vertex);
COMPUTE_EYEDEPTH(o.projPos.z);
#endif
o.color = v.color;
o.texcoord = TRANSFORM_TEX(v.texcoord,_MainTex);
return o;
}
sampler2D _CameraDepthTexture;
float _InvFade;
fixed4 frag (v2f i) : COLOR
{
#ifdef SOFTPARTICLES_ON
float sceneZ = LinearEyeDepth (UNITY_SAMPLE_DEPTH(tex2Dproj(_CameraDepthTexture, UNITY_PROJ_COORD(i.projPos))));
float partZ = i.projPos.z;
float fade = saturate (_InvFade * (sceneZ-partZ));
i.color.a *= fade;
#endif
return 2.0f * i.color * _TintColor * tex2D(_MainTex, i.texcoord);
}
ENDCG
}
// ---- Fragment program cards
// ---- Dual texture cards
SubShader {
Pass {
SetTexture [_MainTex] {
constantColor [_TintColor]
combine constant * primary
}
SetTexture [_MainTex] {
combine texture * previous DOUBLE
}
}
}
// ---- Single texture cards (does not do color tint)
SubShader {
Pass {
SetTexture [_MainTex] {
combine texture * primary
}
}
}
}
}
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