TerrainFourLayer2Pass
m (Text replace - "<shaderlab>" to "<syntaxhighlight lang="shaderlab">") |
m (Text replace - "</shaderlab>" to "</syntaxhighlight>") |
||
| Line 104: | Line 104: | ||
} | } | ||
} | } | ||
| − | }</ | + | }</syntaxhighlight> |
Latest revision as of 23:56, 17 January 2012
Author: Eric Haines (Eric5h5) - Based on the TerrainFourLayer shader
[edit] Description
This is similar to the above referenced shader, with these differences: 1) It should work properly on all graphics cards from the 5200FX and later 2) It has fog 3) It uses 2 passes, so it's slower 4) It has a _Base texture, which is used as a fallback for really old cards like the Radeon 8500 and older. This should be like the mixing mask, but with colors, so you can at least get a flat-shaded version of the texture colors...otherwise you'd just get a single texture which wouldn't be representative of the mixed texture at all. If you don't care about old cards like that, then you can skip it.
[edit] Usage
Place this shader somewhere in your Assets folder hierarchy, create a material which uses it and apply it to the relevant objects.
[edit] ShaderLab - FourLayerVertexLit2Pass.shader
Invalid language.
You need to specify a language like this: <source lang="html4strict">...</source>
Supported languages for syntax highlighting:
4cs, 6502acme, 6502kickass, 6502tasm, 68000devpac, abap, actionscript, actionscript3, ada, algol68, apache, applescript, apt_sources, asm, asp, autoconf, autohotkey, autoit, avisynth, awk, bascomavr, bash, basic4gl, bf, bibtex, blitzbasic, bnf, boo, c, c_loadrunner, c_mac, caddcl, cadlisp, cfdg, cfm, chaiscript, cil, clojure, cmake, cobol, coffeescript, cpp, cpp-qt, csharp, css, cuesheet, d, dcs, delphi, diff, div, dos, dot, e, ecmascript, eiffel, email, epc, erlang, euphoria, f1, falcon, fo, fortran, freebasic, fsharp, gambas, gdb, genero, genie, gettext, glsl, gml, gnuplot, go, groovy, gwbasic, haskell, hicest, hq9plus, html4strict, html5, icon, idl, ini, inno, intercal, io, j, java, java5, javascript, jquery, kixtart, klonec, klonecpp, latex, lb, lisp, llvm, locobasic, logtalk, lolcode, lotusformulas, lotusscript, lscript, lsl2, lua, m68k, magiksf, make, mapbasic, matlab, mirc, mmix, modula2, modula3, mpasm, mxml, mysql, newlisp, nsis, oberon2, objc, objeck, ocaml, ocaml-brief, oobas, oracle11, oracle8, oxygene, oz, pascal, pcre, per, perl, perl6, pf, php, php-brief, pic16, pike, pixelbender, pli, plsql, postgresql, povray, powerbuilder, powershell, proftpd, progress, prolog, properties, providex, purebasic, pycon, python, q, qbasic, rails, rebol, reg, robots, rpmspec, rsplus, ruby, sas, scala, scheme, scilab, sdlbasic, smalltalk, smarty, sql, systemverilog, tcl, teraterm, text, thinbasic, tsql, typoscript, unicon, uscript, vala, vb, vbnet, verilog, vhdl, vim, visualfoxpro, visualprolog, whitespace, whois, winbatch, xbasic, xml, xorg_conf, xpp, yaml, z80, zxbasic
Shader "Terrain/Four Layer VertexLit 2Pass" {
Properties {
_Color ("Main Color", Color) = (1,1,1,1)
_MainTex ("Color 1 (RGB)", 2D) = "white" {}
_MainTex2 ("Color 2 (RGB)", 2D) = "white" {}
_MainTex3 ("Color 3 (RGB)", 2D) = "white" {}
_MainTex4 ("Color 4 (RGB)", 2D) = "white" {}
_Mask ("Mixing Mask (RGBA)", 2D) = "gray" {}
_Base ("Base Color (RGB)", 2D) = "white" {}
}
Category {
Lighting On
Cull Back
Fog { Color [_AddFog] }
Subshader {
Material {
Diffuse [_Color]
Ambient [_Color]
}
Pass {
CGPROGRAM
#pragma fragment frag
#pragma fragmentoption ARB_fog_exp2
#include "UnityCG.cginc"
sampler2D _MainTex;
sampler2D _MainTex2;
sampler2D _MainTex3;
sampler2D _Mask;
struct v2f {
V2F_POS_FOG;
float4 uv[4] : TEXCOORD0;
float4 diffuse : COLOR;
};
half4 frag( v2f i ) : COLOR
{
// get the first three layer colors
half4 color1 = tex2D( _MainTex, i.uv[0].xy );
half4 color2 = tex2D( _MainTex2, i.uv[1].xy );
half4 color3 = tex2D( _MainTex3, i.uv[2].xy );
// get the mixing mask texture
half4 mask = tex2D( _Mask, i.uv[3].xy );
// mix the three layers
half4 color = color1 * mask.r + color2 * mask.g + color3 * mask.b;
// multiply and double by the lighting
return color * i.diffuse * 2.0;
}
ENDCG
}
Pass {
Blend One One
CGPROGRAM
#pragma fragment frag
#pragma fragmentoption ARB_fog_exp2
#include "UnityCG.cginc"
sampler2D _MainTex4;
sampler2D _Mask;
struct v2f {
V2F_POS_FOG;
float4 uv[2] : TEXCOORD0;
float4 diffuse : COLOR;
};
half4 frag( v2f i ) : COLOR
{
// Finish the last texture mix in the second pass...some cards don't have enough registers to do it in one pass
half4 color1 = tex2D( _MainTex4, i.uv[0].xy );
half4 mask = tex2D( _Mask, i.uv[1].xy );
half4 color = color1 * mask.a;
return color * i.diffuse * 2.0;
}
ENDCG
}
}
}
// ------------------------------------------------------------------
// Radeon 7000 / 9000
SubShader {
Pass {
Material {
Diffuse [_Color]
Ambient [_Color]
}
Lighting On
SetTexture [_Base] {
Combine texture * primary DOUBLE, texture * primary
}
}
}
}
