Horde3D

<Pipeline>
    <CommandQueue>
   
        <Stage id="FirstStage" link="globalSettings.material.xml">
            <ClearTarget depthBuf="true" colBuf0="true" />
            <DrawGeometry context="AMBIENT" class="~TRANSLUCTENT" />
        </Stage>
   <Stage id="Overlays">
      <DrawOverlays context="OVERLAY" />
   </Stage>
    </CommandQueue>
</Pipeline>

[[FX]]
sampler2D albedoMap;

// Contexts
context AMBIENT
{
   VertexShader = compile GLSL VS_OVERLAY;
   PixelShader = compile GLSL FS_OVERLAY;
}

[[VS_OVERLAY]]

#include "shaders/utilityLib/vertCommon.glsl"
#include "shaders/utilityLib/vertSkinning.glsl"

uniform mat4 viewProjMat;
uniform vec3 viewerPos;
attribute vec3 vertPos;
attribute vec2 texCoords0;
attribute vec3 normal;
varying vec4 pos, vsPos;
varying vec2 texCoords;
varying vec3 tsbNormal;

void main( void )
{
   mat4 skinningMat = calcSkinningMat();
   mat3 skinningMatVec = getSkinningMatVec( skinningMat );
   pos = calcWorldPos( skinPos( vec4( vertPos, 1.0 ), skinningMat ) );
   vsPos = calcViewPos( pos );
   tsbNormal = normal;
   texCoords = texCoords0;
   gl_Position = viewProjMat * pos;
}

[[FS_OVERLAY]]
uniform sampler2D albedoMap;
varying vec2 texCoords;
varying vec3 tsbNormal;


void main( void )
{
   //Flip coords for glsl
   vec3 newCoords = vec3( texCoords, 0 );
   newCoords.t *= -1.0;
   //Calculate shading
   vec3 textColour = texture2D( albedoMap, newCoords ).rgb;
   float light = min(dot(tsbNormal, vec3(1,0,0)), 1);
   //Thresholds for cell shading
   if(light < 0.3)
      light = 0.3;
   else if(light < 0.7)
      light = 0.7;
   else
      light = 1;
   gl_FragColor.rgb = textColour * light;
}

float light = min(dot(tsbNormal, vec3(1,0,0)), 1);