我想为Unity合并这两个着色器的功能。 第一个着色器是主要着色器，可添加毛刺全息图效果。 第二个着色器使表面纹理更加细腻，以增加视觉效果。
我正在尝试合并我的代码版本，或者不同的传递允许我在相同的材料上实现这两个功能，如果可能的话。
我已尝试过shaderpass功能，但无法使其正常工作。
有可能吗？
第一个shadercode
Shader "Custom/Cool Hologram Original"
{
Properties
{
//This program takes an existing shader script and builds upon it, by adding the features :
//Tintcolor - allowing for manipulation of colors
//Transparency - Changing opaque in tags to transparency so that the model becomes transparent
//Properties allow defining public manipulative variables
_MainTex ("AlbedoTexture", 2D) = "white" {} //braces are useless leftover braces no longer needed according to Unity developer
_TintColor("Tint Color", Color) = (1,1,1,1) //Public variable appearing in inspector
_Transparency("Transparency", Range(0.0,0.5)) = 0.25
_CutoutTresh("Cutout Threshold", Range(0.0,1.0)) = 0.2
_Distance("Distance", Float) = 1
_Amplitude("Amplitude", Float) = 1
_Speed("Speed", Float) = 1
_Amount("Amount", Range(0.0,1.0)) = 1
}
//The actual shader program
SubShader
{
Tags {"Queue"="Transparent" "RenderType"="Transparent" } //Added queue and transparent elements because order matters (see render order queu tag)
LOD 100 //LOD means level of details and used for when player is close or far away
ZWrite Off //This is related to culling and depth testing, controlling if something is written to depth buffer. Zwrite off is for transparent objects
Blend SrcAlpha OneMinusSrcAlpha //See blend factors in unity doc. It is about render order and how they should blend
Pass //A pass can be made for each type of situation, like Virtual Reality etc
{
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#include "UnityCG.cginc" //Shaders does not use inheritance, it has got monobehaviour instead, so it must be defined as #included
struct appdata //Structs are objects with 2 objects each. appdata is passed in to v2f vert as argument
{
float4 vertex : POSITION; //Variable with 4 floating point numbers x,y,z,w. POSITION is a semantic binding telling where it is to be used
float2 uv : TEXCOORD0;
};
struct v2f
{
float2 uv : TEXCOORD0;
float4 vertex : SV_POSITION; //SV_Position corresponds to screen position in Unity
};
sampler2D _MainTex;
float4 _MainTex_ST;
float4 _TintColor;
float _Transparency;
float _CutoutThresh;
float _Distance;
float _Amplitude;
float _Speed;
float _Amount;
v2f vert (appdata v)
{
v2f o;
v.vertex.x += sin(_Time.y * _Speed + v.vertex.y * _Amplitude) * _Distance * _Amount; //Allows sinusoidal movement to vertices in object space b4 translation to clip
o.vertex = UnityObjectToClipPos(v.vertex); //See learnopengl.com to see 5 spaces: local space, world space, view space, clip space, screen space
o.uv = TRANSFORM_TEX(v.uv, _MainTex); //Taking uv data from model and data from maintexture (see the shader texture in inspector)
return o; //Returns struct after it has been build in coordinate system, it will then be passed to fragment function
}
fixed4 frag (v2f i) : SV_Target //Takes in v2f struct calling it i and then bind it to render target, which is frame buffer for screen
{
// sample the texture
fixed4 col = tex2D(_MainTex, i.uv) + _TintColor; //fixed 4 col is color. Can be fixed rgbA for 3 colors and an alpha channel. tex2D reads in colors from maintex and struct data from i
col.a = _Transparency; //The colors are what actually drawed in this feature with tex3D
clip(col.r - _CutoutThresh); //Not drawing pixels with certain amount of red color
return col;
}
ENDCG
}
}
}
第二个shadercode
Shader "Custom/Offset 1"
{
Properties {
_MainTex ("Texture", 2D) = "white" {}
_ScrollSpeeds ("Scroll Speeds", vector) = (0, -3, 0, 0)
}
SubShader
{
Tags { "RenderType"="Opaque" }
LOD 100
Pass
{
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
// make fog work
#pragma multi_compile_fog
#include "UnityCG.cginc"
struct appdata
{
float4 vertex : POSITION;
float2 uv : TEXCOORD0;
};
struct v2f
{
float2 uv : TEXCOORD0;
UNITY_FOG_COORDS(1)
float4 vertex : SV_POSITION;
};
sampler2D _MainTex;
float4 _MainTex_ST;
// Declare our new parameter here so it's visible to the CG shader
float4 _ScrollSpeeds;
v2f vert (appdata v)
{
v2f o;
o.vertex = UnityObjectToClipPos(v.vertex);
o.uv = TRANSFORM_TEX(v.uv, _MainTex);
// Shift the uvs over time.
o.uv += _ScrollSpeeds * _Time.x;
UNITY_TRANSFER_FOG(o,o.vertex);
return o;
}
fixed4 frag (v2f i) : SV_Target
{
// sample the texture
fixed4 col = tex2D(_MainTex, i.uv);
// apply fog
UNITY_APPLY_FOG(i.fogCoord, col);
return col;
}
ENDCG
}
}
}
第三个shadercode
Shader "Custom/Combined"
{
Properties
{
_MainTex ("AlbedoTexture", 2D) = "white" {}
_HoloColor("Hologram Color", Color) = (1,1,1,1)
_Transparency("Transparency", Range(0.0,0.5)) = 0.25
_CutoutTresh("Cutout Threshold", Range(0.0,1.0)) = 0.2
_Distance("Distance", Float) = 1
_Amplitude("Amplitude", Float) = 1
_Speed("Speed", Float) = 1
_ScrollSpeeds("Scroll Speeds", vector) = (0,-3,0,0) //added from offset shader
_Amount("Amount", Range(0.0,1.0)) = 1
}
SubShader {
Tags {"Queue"="Transparent" "RenderType"="Transparent" }
LOD 100
ZWrite Off
Blend SrcAlpha OneMinusSrcAlpha
Pass
{
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#include "UnityCG.cginc"
struct appdata {
float4 vertex : POSITION;
float2 uv : TEXCOORD0;
};
struct v2f {
float2 uv : TEXCOORD0;
UNITY_FOG_COORDS(1) //added from offset shader
float4 vertex : SV_POSITION;
};
sampler2D _MainTex;
float4 _MainTex_ST;
float4 _HoloColor;
float4 _ScrollSpeeds;
float _Transparency;
float _CutoutThresh;
float _Distance;
float _Amplitude;
float _Speed;
float _Amount;
v2f vert (appdata v)
{
v2f o;
v.vertex.x += sin(_Time.y * _Speed + v.vertex.y * _Amplitude) * _Distance * _Amount;
o.vertex = UnityObjectToClipPos(v.vertex);
o.uv = TRANSFORM_TEX(v.uv, _MainTex);
o.uv += _ScrollSpeeds * _Time.x; //Added from offset shader
UNITY_TRANSFER_FOG(o,o.vertex); //added from offset shader
return o;
}
fixed4 frag (v2f i) : SV_Target
{
fixed4 col = tex2D(_MainTex, i.uv) + _HoloColor;
col.a = _Transparency;
clip(col.r - _CutoutThresh);
UNITY_APPLY_FOG(i.fogCoord, col); //Added from offset shader
return col;
}
ENDCG
}
}
Fallback＆＃34; Diffuse＆＃34; }