Remove last minGray and maxGray in shader code

static/js/threeJsHelper/dist/threeJsHelper.js

@@ -499,8 +499,6 @@ function init() {
         tBackground: {type: 't', value: rtTexture},
         tvSlices: {type: 'tv', value: spriteMaps},
         tTransfer: { type: 't', value: transferTexture},
-        minGray: {type: 'f', value: minGray },
-        maxGray: {type: 'f', value: maxGray },
         steps: {type: 'f', value: 100},
         numberOfSlices: {type: 'f', value: imgInfo.numberOfSlices },
         numberOfSprites: {type: 'f', value: imgInfo.numberOfSprites },

static/js/threeJsHelper/src/Application.js

@@ -499,8 +499,6 @@ function init() {
         tBackground: {type: 't', value: rtTexture},
         tvSlices: {type: 'tv', value: spriteMaps},
         tTransfer: { type: 't', value: transferTexture},
-        minGray: {type: 'f', value: minGray },
-        maxGray: {type: 'f', value: maxGray },
         steps: {type: 'f', value: 100},
         numberOfSlices: {type: 'f', value: imgInfo.numberOfSlices },
         numberOfSprites: {type: 'f', value: imgInfo.numberOfSprites },

static/shaders/three-shader.frag

@@ -6,9 +6,6 @@ uniform sampler2D tBackground;
 uniform sampler2D tvSlices[10];
 uniform sampler2D tTransfer;
 
-uniform float minGray;
-uniform float maxGray;
-
 uniform float numberOfSprites;
 uniform float slicesPerSprite;
 
@@ -126,7 +123,7 @@ void main(void)
 
         value = texture2D(tTransfer,tf_pos);
 
-        if(value.x < minGray || value.x > maxGray || value.a < 0.15) {
+        if(value.a < 0.15) {
             value = vec4(0.0);
         }