[CHANGE] make it use the global colormap shader file

src/modules/navSlices/shaders/slice.fs

 varying vec4 VaryingTexCoord0;
-uniform int useColorMap;
 
-uniform sampler3D tex0;
-uniform sampler3D tex1;
-uniform sampler3D tex2;
-uniform sampler3D tex3;
-uniform sampler3D tex4;
-uniform sampler3D tex5;
-uniform sampler3D tex6;
-uniform sampler3D tex7;
-uniform sampler3D tex8;
-uniform sampler3D tex9;
+#include "colorMaps.fs"
 
-uniform float threshold0;
-uniform float threshold1;
-uniform float threshold2;
-uniform float threshold3;
-uniform float threshold4;
-uniform float threshold5;
-uniform float threshold6;
-uniform float threshold7;
-uniform float threshold8;
-uniform float threshold9;
-
-uniform float alpha0;
-uniform float alpha1;
-uniform float alpha2;
-uniform float alpha3;
-uniform float alpha4;
-uniform float alpha5;
-uniform float alpha6;
-uniform float alpha7;
-uniform float alpha8;
-uniform float alpha9;
-
-uniform int type0;
-uniform int type1;
-uniform int type2;
-uniform int type3;
-uniform int type4;
-uniform int type5;
-uniform int type6;
-uniform int type7;
-uniform int type8;
-uniform int type9;
-
-vec3 defaultColorMap( in float value )
-{
-    value *= 5.0;
-    vec3 color;
-    if( value < 0.0 )
-        color = vec3( 0.0, 0.0, 0.0 );
-    else if( value < 1.0 )
-        color = vec3( 0.0, value, 1.0 );
-    else if( value < 2.0 )
-        color = vec3( 0.0, 1.0, 2.0-value );
-    else if( value < 3.0 )
-        color =  vec3( value-2.0, 1.0, 0.0 );
-    else if( value < 4.0 )
-        color = vec3( 1.0, 4.0-value, 0.0 );
-    else if( value <= 5.0 )
-        color = vec3( 1.0, 0.0, value-4.0 );
-    else
-        color =  vec3( 1.0, 0.0, 1.0 );
-    return color;
-}
-
-vec3 colorMap1 ( in float value )
-{
-    float i = floor(6.*value);
-    float f = 6.*value - i;
-    float q = 1.0-f;
-
-    int iq = int(mod(i, 6.));
-
-    if ((iq == 0) || (iq == 6))
-        return vec3(1., f, 0.);
-    else if (iq == 1)
-        return vec3(q, 1., 0.);
-    else if (iq == 2)
-        return vec3(0., 1., f);
-    else if (iq == 3)
-        return vec3(0., q, 1.);
-    else if (iq == 4)
-        return vec3(f, 0., 1.);
-    else // iq == 5
-        return vec3(1., 0., q);
-}
-/*
-vec3 colorMap2( in float value )
-{
-    vec4 color8  = vec4(255./255., 255./255., 204./255., 1.);
-    vec4 color7  = vec4(255./255., 237./255., 160./255., 1.);
-    vec4 color6  = vec4(254./255., 217./255., 118./255., 1.);
-    vec4 color5  = vec4(254./255., 178./255.,  76./255., 1.);
-    vec4 color4  = vec4(253./255., 141./255.,  60./255., 1.);
-    vec4 color3  = vec4(252./255.,  78./255.,  42./255., 1.);
-    vec4 color2  = vec4(227./255.,  26./255.,  28./255., 1.);
-    vec4 color1  = vec4(189./255.,   0./255.,  38./255., 1.);
-    vec4 color0  = vec4(128./255.,   0./255.,  38./255., 1.);
-
-    float colorValue = value * 8.;
-    int sel = int(floor(colorValue));
-
-    if ( sel >= 8 )
-        return color0.rgb;
-    else if ( sel < 0 )
-        return color0.rgb;
-    else
-    {
-        colorValue -= float(sel);
-
-        if (sel < 1)
-            return ( color1*colorValue + color0*(1.-colorValue)).rgb;
-        else if (sel < 2)
-            return ( color2*colorValue + color1*(1.-colorValue)).rgb;
-        else if (sel < 3)
-            return ( color3*colorValue + color2*(1.-colorValue)).rgb;
-        else if (sel < 4)
-            return ( color4*colorValue + color3*(1.-colorValue)).rgb;
-        else if (sel < 5)
-            return ( color5*colorValue + color4*(1.-colorValue)).rgb;
-        else if (sel < 6)
-            return ( color6*colorValue + color5*(1.-colorValue)).rgb;
-        else if (sel < 7)
-            return ( color7*colorValue + color6*(1.-colorValue)).rgb;
-        else if (sel < 8)
-            return ( color8*colorValue + color7*(1.-colorValue)).rgb;
-        else return color0.rgb;
-    }
-}
-
-vec3 colorMap3( in float value )
-{
-    vec4 color0 = vec4(1., 0., 0., 1.);
-    vec4 color1 = vec4(1., 1., 0., 1.);
-    return ( color1*value + color0*(1.-value)).rgb;
-}
-
-vec3 colorMap4( in float value )
-{
-    vec4 color0 = vec4(0., 0., 1., 1.);
-    vec4 color1 = vec4(0.78, 1., 1., 1.);
-    return ( color1*value + color0*(1.-value)).rgb;
-}
-
-vec3 colorMap5( in float value )
-{
-    vec4 color0 = vec4(255./255., 255./255., 217./255., 1.);
-    vec4 color1 = vec4(237./255., 248./255., 177./255., 1.);
-    vec4 color2 = vec4(199./255., 233./255., 180./255., 1.);
-    vec4 color3 = vec4(127./255., 205./255., 187./255., 1.);
-    vec4 color4 = vec4( 65./255., 182./255., 196./255., 1.);
-    vec4 color5 = vec4( 29./255., 145./255., 192./255., 1.);
-    vec4 color6 = vec4( 34./255.,  94./255., 168./255., 1.);
-    vec4 color7 = vec4( 37./255.,  52./255., 148./255., 1.);
-    vec4 color8 = vec4(  8./255.,  29./255.,  88./255., 1.);
-
-    float colorValue = value * 8.;
-    int sel = int(floor(colorValue));
-
-    if ( sel >= 8 )
-        return color0.rgb;
-    else if ( sel < 0 )
-        return color0.rgb;
-    else
-    {
-        colorValue -= float(sel);
-
-        if (sel < 1)
-            return ( color1*colorValue + color0*(1.-colorValue)).rgb;
-        else if (sel < 2)
-            return ( color2*colorValue + color1*(1.-colorValue)).rgb;
-        else if (sel < 3)
-            return ( color3*colorValue + color2*(1.-colorValue)).rgb;
-        else if (sel < 4)
-            return ( color4*colorValue + color3*(1.-colorValue)).rgb;
-        else if (sel < 5)
-            return ( color5*colorValue + color4*(1.-colorValue)).rgb;
-        else if (sel < 6)
-            return ( color6*colorValue + color5*(1.-colorValue)).rgb;
-        else if (sel < 7)
-            return ( color7*colorValue + color6*(1.-colorValue)).rgb;
-        else if (sel < 8)
-            return ( color8*colorValue + color7*(1.-colorValue)).rgb;
-        else return color0.rgb;
-    }
-}
-
-vec3 colorMap6( in float value )
-{
-    float basecolor = 0.0;
-    float frequency = 5.0;
-    float sqrt3 = sqrt(3.);
-    float onedtwodsqrt3 = 1. / 2. / sqrt3;
-    float onepsqrt3 = 1. + sqrt3;
-    float onemsqrt3 = 1. - sqrt3;
-    float wvalue = sqrt(3./2.) * value * (1.-value); // = omega(value)
-    float twotz = 2. * sqrt3 * value; // = 2. * z(value)
-    float sinTerm = sin(frequency*value+basecolor);
-    float cosTerm = cos(frequency*value+basecolor);
-    float wtsinTerm = wvalue * sinTerm;
-    float wtcosTerm = wvalue * cosTerm;
-
-    float colorRed   = (onedtwodsqrt3*(onepsqrt3*wtsinTerm + onemsqrt3*wtcosTerm + twotz));
-    float colorGreen = (onedtwodsqrt3*(onemsqrt3*wtsinTerm + onepsqrt3*wtcosTerm + twotz));
-    float colorBlue  = (onedtwodsqrt3*(-2.*(wtsinTerm + wtcosTerm) + twotz));
-
-    return vec3(colorRed, colorGreen, colorBlue);
-}
-*/
-void colorMap( inout vec3 col, in float value )
-{
-
-    if ( useColorMap == 1 )
-        col = colorMap1( value );
-        /*
-    else if ( useColorMap == 2 )
-        col = colorMap2( value );
-    else if ( useColorMap == 3 )
-        col = colorMap3( value );
-    else if ( useColorMap == 4 )
-        col = colorMap4( value );
-        */
-    else
-        col = defaultColorMap( value );
-}
 
 void lookupTex(inout vec4 col, in int type, in sampler3D tex, in float threshold, in vec3 v, in float alpha)
 {
@@ -246,7 +22,6 @@ void lookupTex(inout vec4 col, in int type, in sampler3D tex, in float threshold
     col.rgb = mix( col.rgb, col1.rgb, alpha);
 }
 
-
 void main()
 {
     vec4 col = vec4(0.0, 0.0, 0.0, 0.0);