diff --git a/assets/shaders/Cartoon shader.fsh b/assets/shaders/Cartoon shader.fsh
index 1189b224b1..bef69f1116 100644
--- a/assets/shaders/Cartoon shader.fsh	
+++ b/assets/shaders/Cartoon shader.fsh	
@@ -14,17 +14,25 @@ const float bb = 0.5; // effects black border sensitivity; from 0.0 to 1.0
 
 uniform sampler2D sampler0;
 
+varying vec4 v_texcoord0;
+varying vec4 v_texcoord1;
+varying vec4 v_texcoord2;
+varying vec4 v_texcoord3;
+varying vec4 v_texcoord4;
+varying vec4 v_texcoord5;
+varying vec4 v_texcoord6;
+
 void main()
 {
-	vec3 c00 = texture2D(sampler0, gl_TexCoord[5].xy).xyz; 
-	vec3 c10 = texture2D(sampler0, gl_TexCoord[1].xy).xyz; 
-	vec3 c20 = texture2D(sampler0, gl_TexCoord[2].zw).xyz; 
-	vec3 c01 = texture2D(sampler0, gl_TexCoord[3].xy).xyz; 
-	vec3 c11 = texture2D(sampler0, gl_TexCoord[0].xy).xyz; 
-	vec3 c21 = texture2D(sampler0, gl_TexCoord[4].xy).xyz; 
-	vec3 c02 = texture2D(sampler0, gl_TexCoord[1].zw).xyz; 
-	vec3 c12 = texture2D(sampler0, gl_TexCoord[2].xy).xyz; 
-	vec3 c22 = texture2D(sampler0, gl_TexCoord[6].xy).xyz; 
+	vec3 c00 = texture2D(sampler0, v_texcoord5.xy).xyz; 
+	vec3 c10 = texture2D(sampler0, v_texcoord1.xy).xyz; 
+	vec3 c20 = texture2D(sampler0, v_texcoord2.zw).xyz; 
+	vec3 c01 = texture2D(sampler0, v_texcoord3.xy).xyz; 
+	vec3 c11 = texture2D(sampler0, v_texcoord0.xy).xyz; 
+	vec3 c21 = texture2D(sampler0, v_texcoord4.xy).xyz; 
+	vec3 c02 = texture2D(sampler0, v_texcoord1.zw).xyz; 
+	vec3 c12 = texture2D(sampler0, v_texcoord2.xy).xyz; 
+	vec3 c22 = texture2D(sampler0, v_texcoord6.xy).xyz; 
 	vec3 dt = vec3(1.0,1.0,1.0); 
 
 	float d1=dot(abs(c00-c22),dt);
diff --git a/assets/shaders/Cartoon shader.vsh b/assets/shaders/Cartoon shader.vsh
index 3eb77750f8..be80e66a49 100644
--- a/assets/shaders/Cartoon shader.vsh	
+++ b/assets/shaders/Cartoon shader.vsh	
@@ -2,10 +2,17 @@ attribute vec4 a_position;
 attribute vec2 a_texcoord0;
 uniform mat4 u_viewproj;
 
+varying vec4 v_texcoord0;
+varying vec4 v_texcoord1;
+varying vec4 v_texcoord2;
+varying vec4 v_texcoord3;
+varying vec4 v_texcoord4;
+varying vec4 v_texcoord5;
+varying vec4 v_texcoord6;
+
 float size = 2.0; //edge detection offset, 2.0-5.0 suitable range
 
 void main()
-
 {
 float x = (0.125/480.0)*size;
 float y = (0.25/272.0)*size;
@@ -14,14 +21,14 @@ vec2 dg2 = vec2(-x,y);
 vec2 dx  = vec2(x,0.0);
 vec2 dy  = vec2(0.0,y);
 gl_Position = u_viewproj * a_position;
-gl_TexCoord[0]=a_texcoord0.xyxy;
-gl_TexCoord[1].xy = gl_TexCoord[0].xy - dy;
-gl_TexCoord[2].xy = gl_TexCoord[0].xy + dy;
-gl_TexCoord[3].xy = gl_TexCoord[0].xy - dx;
-gl_TexCoord[4].xy = gl_TexCoord[0].xy + dx;
-gl_TexCoord[5].xy = gl_TexCoord[0].xy - dg1;
-gl_TexCoord[6].xy = gl_TexCoord[0].xy + dg1;
-gl_TexCoord[1].zw = gl_TexCoord[0].xy - dg2;
-gl_TexCoord[2].zw = gl_TexCoord[0].xy + dg2;
+v_texcoord0=a_texcoord0.xyxy;
+v_texcoord1.xy = v_texcoord0.xy - dy;
+v_texcoord2.xy = v_texcoord0.xy + dy;
+v_texcoord3.xy = v_texcoord0.xy - dx;
+v_texcoord4.xy = v_texcoord0.xy + dx;
+v_texcoord5.xy = v_texcoord0.xy - dg1;
+v_texcoord6.xy = v_texcoord0.xy + dg1;
+v_texcoord1.zw = v_texcoord0.xy - dg2;
+v_texcoord2.zw = v_texcoord0.xy + dg2;
 
 }
diff --git a/assets/shaders/natural.fsh b/assets/shaders/natural.fsh
index 642718a17a..34917d352d 100644
--- a/assets/shaders/natural.fsh
+++ b/assets/shaders/natural.fsh
@@ -3,6 +3,10 @@
 
 
 uniform sampler2D sampler0;
+varying vec4 v_texcoord0;
+varying vec4 v_texcoord1;
+varying vec4 v_texcoord2;
+varying vec4 v_texcoord3;
 
 const mat3 RGBtoYIQ = mat3(0.299, 0.596, 0.212, 
                            0.587,-0.275,-0.523, 
@@ -18,25 +22,25 @@ void main()
 {
 vec3 c0,c1;
 
-c0 = texture2D(sampler0,gl_TexCoord[0].xy).xyz;
-c0+=(texture2D(sampler0,gl_TexCoord[0].zy).xyz)*0.25;
-c0+=(texture2D(sampler0,gl_TexCoord[0].xw).xyz)*0.25;
-c0+=(texture2D(sampler0,gl_TexCoord[0].zw).xyz)*0.125;
+c0 = texture2D(sampler0,v_texcoord0.xy).xyz;
+c0+=(texture2D(sampler0,v_texcoord0.zy).xyz)*0.25;
+c0+=(texture2D(sampler0,v_texcoord0.xw).xyz)*0.25;
+c0+=(texture2D(sampler0,v_texcoord0.zw).xyz)*0.125;
 
-c0+= texture2D(sampler0,gl_TexCoord[1].xy).xyz;
-c0+=(texture2D(sampler0,gl_TexCoord[1].zy).xyz)*0.25;
-c0+=(texture2D(sampler0,gl_TexCoord[1].xw).xyz)*0.25;
-c0+=(texture2D(sampler0,gl_TexCoord[1].zw).xyz)*0.125;
+c0+= texture2D(sampler0,v_texcoord1.xy).xyz;
+c0+=(texture2D(sampler0,v_texcoord1.zy).xyz)*0.25;
+c0+=(texture2D(sampler0,v_texcoord1.xw).xyz)*0.25;
+c0+=(texture2D(sampler0,v_texcoord1.zw).xyz)*0.125;
 
-c0+= texture2D(sampler0,gl_TexCoord[2].xy).xyz;
-c0+=(texture2D(sampler0,gl_TexCoord[2].zy).xyz)*0.25;
-c0+=(texture2D(sampler0,gl_TexCoord[2].xw).xyz)*0.25;
-c0+=(texture2D(sampler0,gl_TexCoord[2].zw).xyz)*0.125;
+c0+= texture2D(sampler0,v_texcoord2.xy).xyz;
+c0+=(texture2D(sampler0,v_texcoord2.zy).xyz)*0.25;
+c0+=(texture2D(sampler0,v_texcoord2.xw).xyz)*0.25;
+c0+=(texture2D(sampler0,v_texcoord2.zw).xyz)*0.125;
 
-c0+= texture2D(sampler0,gl_TexCoord[3].xy).xyz;
-c0+=(texture2D(sampler0,gl_TexCoord[3].zy).xyz)*0.25;
-c0+=(texture2D(sampler0,gl_TexCoord[3].xw).xyz)*0.25;
-c0+=(texture2D(sampler0,gl_TexCoord[3].zw).xyz)*0.125;
+c0+= texture2D(sampler0,v_texcoord3.xy).xyz;
+c0+=(texture2D(sampler0,v_texcoord3.zy).xyz)*0.25;
+c0+=(texture2D(sampler0,v_texcoord3.xw).xyz)*0.25;
+c0+=(texture2D(sampler0,v_texcoord3.zw).xyz)*0.125;
 c0*=0.153846153846;
 
 c1=RGBtoYIQ*c0;
diff --git a/assets/shaders/natural.vsh b/assets/shaders/natural.vsh
index 53704ef55c..40d312ce7a 100644
--- a/assets/shaders/natural.vsh
+++ b/assets/shaders/natural.vsh
@@ -3,14 +3,18 @@ uniform vec4 u_texcoordDelta;
 attribute vec4 a_position;
 attribute vec2 a_texcoord0;
 uniform mat4 u_viewproj;
-varying vec2 v_texcoord0;
+
+varying vec4 v_texcoord0;
+varying vec4 v_texcoord1;
+varying vec4 v_texcoord2;
+varying vec4 v_texcoord3;
 void main()
 {
 gl_Position=u_viewproj * a_position;
 		
-gl_TexCoord[0]=a_texcoord0.xyxy+vec4(-0.5,-0.5,-1.5,-1.5)*u_texcoordDelta.xyxy;
-gl_TexCoord[1]=a_texcoord0.xyxy+vec4( 0.5,-0.5, 1.5,-1.5)*u_texcoordDelta.xyxy;
-gl_TexCoord[2]=a_texcoord0.xyxy+vec4(-0.5, 0.5,-1.5, 1.5)*u_texcoordDelta.xyxy;
-gl_TexCoord[3]=a_texcoord0.xyxy+vec4( 0.5, 0.5, 1.5, 1.5)*u_texcoordDelta.xyxy;
+v_texcoord0=a_texcoord0.xyxy+vec4(-0.5,-0.5,-1.5,-1.5)*u_texcoordDelta.xyxy;
+v_texcoord1=a_texcoord0.xyxy+vec4( 0.5,-0.5, 1.5,-1.5)*u_texcoordDelta.xyxy;
+v_texcoord2=a_texcoord0.xyxy+vec4(-0.5, 0.5,-1.5, 1.5)*u_texcoordDelta.xyxy;
+v_texcoord3=a_texcoord0.xyxy+vec4( 0.5, 0.5, 1.5, 1.5)*u_texcoordDelta.xyxy;
 
 }