GreenNightVision
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==ShaderLab - NightVision.shader== | ==ShaderLab - NightVision.shader== | ||
Revision as of 19:20, 30 January 2013
Author: Max70.
Contents |
Description
This is a simple night vision system (green color)
Requires Unity PRO. This script uses texture rendering and Post-processing only available in Unity Pro
Usage
- Luminence: green luminence.
- Noise Factor: factor of noise for the vision.
C# - GreenNightVision.cs
Script for Camera Renderer:
using UnityEngine; [ExecuteInEditMode] [AddComponentMenu("Image Effects/Night Vision v1")] public class NightVision1 : MonoBehaviour { // public data public Shader shader; public Color luminence; public float noiseFactor=0.005f; //private data private Material mat; //----------------------------------------- // start void Start() { shader = Shader.Find( "Image Effects/Night Vision" ); mat = new Material (shader); mat.SetVector( "lum", new Vector4( luminence.g, luminence.g, luminence.g, luminence.g) ); mat.SetFloat("noiseFactor", noiseFactor); } //----------------------------------------- // Called by camera to apply image effect void OnRenderImage (RenderTexture source, RenderTexture destination) { mat.SetFloat("time", Mathf.Sin(Time.time * Time.deltaTime)); Graphics.Blit( source, destination, mat ); } }
ShaderLab - NightVision.shader
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// Night Vision Shader Version 1.00
// Ogre3D convertion
// adapted by Max, Yoda the rebel,
// July 2012.
Shader "Image Effects/Night Vision" {
Properties {
_MainTex ("Base (RGB)", RECT) = "white" {}
}
SubShader {
Pass {
ZTest Always Cull Off ZWrite Off
Fog { Mode off }
CGPROGRAM
#pragma vertex vert_img
#pragma fragment frag
#pragma fragmentoption ARB_precision_hint_fastest
#include "UnityCG.cginc"
// frag shaders data
uniform sampler2D _MainTex;
uniform float4 lum;
uniform float time;
uniform float noiseFactor;
// frag shader
float4 frag (v2f_img i) : COLOR
{
float4 pix = tex2D(_MainTex, i.uv);
//obtain luminence value
pix = dot(pix,lum);
// noise simulation
float2 t = i.uv;
float x = t.x *t.y * 123456 * time;
x = fmod(x,13) * fmod(x,123);
float dx = fmod(x,noiseFactor);
float dy = fmod(x,noiseFactor);
float4 c = tex2D(_MainTex, t+float2(dx,dy))*0.5;
pix += c;
//add lens circle effect
//(could be optimised by using texture)
float dist = distance(i.uv, float2(0.5,0.5));
pix *= smoothstep(0.5,0.45,dist);
//add rb to the brightest pixels
pix.rb = max (pix.r - 0.75, 0)*4;
// return pix pixel ;)
return pix;
}
ENDCG
}
}
Fallback off
}
