[FIX] commited the wrong shader files before

src/modules/navigationSlices/slice.fs

 varying vec4 VaryingTexCoord0;
 
+uniform sampler3D tex0;
+
 void main()
 {
-    gl_FragColor = VaryingTexCoord0;
+    vec4 color = texture3D(tex0, VaryingTexCoord0);
+    if ( ( color.r + color.g + color.b ) < 0.01 )
+        discard;
+    gl_FragColor = color;
 }

src/modules/navigationSlices/slice.vs

 varying vec4 VaryingTexCoord0;
 
-uniform sampler3D tex0;
-
 void main()
 {
-    vec4 color = texture3D(tex0, VaryingTexCoord0);
-
-    if ( ( color.r + color.g + color.b )  < 0.01 )
-        discard;
-    gl_FragColor = color;
+    VaryingTexCoord0 = gl_MultiTexCoord0;
+    gl_Position = ftransform();
 }