My basic HLSL Shaders written from scratch

Basic Custom Shaders

Shader "custom/StandardSpecularPBR"
{
    Properties
    {
        _Color ("Color", Color) = (1,1,1,1)
        _MetallicTex ("Metallic (R)", 2D) = "white" {}
        _SpecColor ("Specular Color", Color) = (1, 1, 1, 1)
    }
    SubShader
    {
        Tags { "RenderType"="Opaque" }

        CGPROGRAM
        // Physically based Standard lighting model, and enable shadows on all light types
        #pragma surface surf StandardSpecular fullforwardshadows

        // Use shader model 3.0 target, to get nicer looking lighting
        #pragma target 3.0

        fixed4 _Color;
        sampler2D _MetallicTex;


        struct Input
        {
            float2 uv_MetallicTex;
        };


        // Add instancing support for this shader. You need to check 'Enable Instancing' on materials that use the shader.
        // See https://docs.unity3d.com/Manual/GPUInstancing.html for more information about instancing.
        // #pragma instancing_options assumeuniformscaling
        UNITY_INSTANCING_BUFFER_START(Props)
            // put more per-instance properties here
        UNITY_INSTANCING_BUFFER_END(Props)

        void surf (Input IN, inout SurfaceOutputStandardSpecular o)
        {

            o.Albedo = _Color.rgb;
            // Metallic and smoothness come from slider variables
            o.Specular = _SpecColor;
            o.Smoothness = tex2D (_MetallicTex, IN.uv_MetallicTex);
        }
        ENDCG
    }
    FallBack "Diffuse"
}

BasicAlpha Shader

Shader "Custom/Leaves" {
Properties{
		_MainTex ("MainTex", 2D) = "white" {}

	}
	SubShader{
		Tags{
			"Queue" = "Transparent"
		}


		CGPROGRAM
		#pragma surface surf Lambert alpha:fade

		sampler2D _MainTex;

		struct Input {
			float2 uv_MainTex;
		};

		void surf(Input IN, inout SurfaceOutput o) {
			fixed4 c = tex2D(_MainTex, IN.uv_MainTex);
			o.Albedo = c.rgb;
			o.Alpha = c.a;
		}
		ENDCG
	}
	FallBack "Diffuse"

}

BumpDiffuse

Shader "Custom/bumpDiffuse"
{
    Properties
    {
        _MyDiffuse ("Diffuse Texture", 2D) = "white" {}
        _MyNormal ("Normal Texture", 2D) = "bump" {}
        _MySlider ("Normal height", Range(0, 10)) = 1
        _MyBrightness("Brightness", Range(0, 10)) = 1
        _MyCubeMap("Cube map", CUBE) = "white" {}

    }
    SubShader
    {

        CGPROGRAM

        #pragma surface surf Lambert


        sampler2D _MyDiffuse;
        sampler2D _MyNormal;
        samplerCUBE _MyCubeMap;

        half _MySlider;
        half _MyBrightness;

        struct Input
        {
            float2 uv_MyDiffuse;
            float2 uv_MyNormal;
            float3 worldRefl; INTERNAL_DATA
        };


        void surf (Input IN, inout SurfaceOutput o)
        {

            o.Albedo = tex2D(_MyDiffuse, IN.uv_MyDiffuse).rgb;
             //o.Albedo = texCUBE(_MyCubeMap, IN.worldRefl).rgb;
            o.Normal = UnpackNormal(tex2D(_MyNormal, IN.uv_MyNormal)) * _MyBrightness;
           o.Normal *= float3(_MySlider, _MySlider, 1);
           o.Emission = texCUBE (_MyCubeMap, WorldReflectionVector(IN, o.Normal)).rgb;
        }
        ENDCG
    }
    FallBack "Diffuse"
}

FresnelRimLitShader.hlsl

Shader "Custom/RimShader"
{
    Properties
    {
        _RimColor ("Rim Color", Color) = (0.0, 0.5, 0.5, 0.0)
        _RimPower("Rim power", Range(0.5, 8.0)) = 3.0

    }
    SubShader
    {


        CGPROGRAM

        #pragma surface surf Lambert


        struct Input
        {
            float3 viewDir;
            float3 worldPos;
        };


        float4 _RimColor;
        float _RimPower;

        void surf (Input IN, inout SurfaceOutput o)
        {
            //we don't care about dot products < 0
            // SATURATE: clamp a value between 0 & 1
            half rim = 1- saturate(dot(normalize(IN.viewDir), o.Normal));
            //control gradient drop-off uses power function
            //o.Emission = _RimColor.rgb * pow(rim, _RimPower);

            //create conditional statement
           // o.Emission = rim > 0.5 ? float3(1, 0, 0) : rim > 0.3 ? float3(0,1,0): 0;

            //if pixel y position > 5 paint green, otherwise red
            // o.Emission = IN.worldPos.y > 5 ? float3(0, 1, 0) : float3(1, 0, 0);

             //frac= mod:  frac(2, 3) = 0.66
             //mult Y by 10 to scale up, divide by 2 (mult by 0.5)
             o.Emission = frac(IN.worldPos.y *10 / 10) > 0.4 ? float3(0, 1, 0) * rim : float3(1, 0, 0) * rim;
        }
        ENDCG
    }
    FallBack "Diffuse"
}

HologramShader.hlsl

Shader "Custom/HologramShader"
{
    Properties
    {
        _RimColor ("Rim Color", Color) = (0.0, 0.5, 0.5, 0.0)
        _RimPower("Rim power", Range(0.5, 8.0)) = 3.0

    }
    SubShader
    {

        Tags{ "Queue" = "Transparent"}


        //RENDER PASS  prevents internal geometry from showing up
        Pass{
            ZWrite On
            ColorMask 0
        }


        CGPROGRAM

        #pragma surface surf Lambert alpha:fade


        struct Input
        {
            float3 viewDir;
        };


        float4 _RimColor;
        float _RimPower;

        void surf (Input IN, inout SurfaceOutput o)
        {
            //we don't care about dot products < 0
            // SATURATE: clamp a value between 0 & 1
            half rim = 1.0 - saturate(dot(normalize(IN.viewDir), o.Normal));
             o.Emission = _RimColor.rgb * pow(rim, _RimPower) * 10;
             o.Alpha = pow (rim, _RimPower);
        }
        ENDCG
    }
    FallBack "Diffuse"
}

standardSpecular.hlsl

Shader "Custom/StandardPBR"
{
    Properties
    {
        _Color ("Color", Color) = (1,1,1,1)
        _MetallicTex ("Metallic (R)", 2D) = "white" {}
        _Metallic ("Metallic", Range(0,1)) = 0.0
    }
    SubShader
    {
        Tags { "RenderType"="Opaque" }

        CGPROGRAM
        // Physically based Standard lighting model, and enable shadows on all light types
        #pragma surface surf Standard fullforwardshadows

        // Use shader model 3.0 target, to get nicer looking lighting
        #pragma target 3.0

        fixed4 _Color;
        sampler2D _MetallicTex;
        half _Metallic;


        struct Input
        {
            float2 uv_MetallicTex;
        };


        // Add instancing support for this shader. You need to check 'Enable Instancing' on materials that use the shader.
        // See https://docs.unity3d.com/Manual/GPUInstancing.html for more information about instancing.
        // #pragma instancing_options assumeuniformscaling
        UNITY_INSTANCING_BUFFER_START(Props)
            // put more per-instance properties here
        UNITY_INSTANCING_BUFFER_END(Props)

        void surf (Input IN, inout SurfaceOutputStandard o)
        {

            o.Albedo = _Color.rgb;
            // Metallic and smoothness come from slider variables
            o.Metallic = _Metallic;
            o.Smoothness = tex2D (_MetallicTex, IN.uv_MetallicTex);
        }
        ENDCG
    }
    FallBack "Diffuse"
}