minor progress on background shader

android/assets/shaders/star_frag.glsl

@@ -1,8 +1,8 @@
 #extension GL_OES_standard_derivatives : enable
 
 varying float vTime;
-varying vec2 vResolution;
 #define M_PI 3.1415926535897932384626433832795
+varying vec2 vTexCoord;
 
 //#define vTime (vTime * vTime * 0.05)
 
@@ -42,10 +42,7 @@ float stars(in vec2 x, float numCells, float size, float br)
 
 void main()
 {
-
-	float res  = max(vResolution.y, vResolution.y);
-
-    vec2 coord = gl_FragCoord.xy / vResolution;
+    vec2 coord = vTexCoord;
 
 	vec2 tmp = coord;
 
@@ -64,7 +61,8 @@ void main()
 
 
 
-	gl_FragColor = vec4(result,1.);
+	gl_FragColor = vec4(result, 1.0);
+//    gl_FragColor = vec4(1.0*(vTexCoord.x/vResolution.x), 0.0, 0.0, 1.0);
 
 
 
@@ -72,7 +70,4 @@ void main()
     // vec2 bl = gl_FragCoord.xy / vResolution.xy;
 
     // if(bl.y>.50-min(vTime/20.,0.4) ^^ bl.y<0.50+min(vTime/20.0,.4))  gl_FragColor  = vec4(0.0,sqrt(coord.y+0.1),0.3,1.0);
-
-
-
 }

android/assets/shaders/star_vert.glsl

@@ -4,17 +4,14 @@ attribute vec2 a_texCoord0;
 
 uniform mat4 u_projTrans;
 uniform float time;
-uniform vec2 resolution;
 
 varying vec4 vColor;
 varying vec2 vTexCoord;
 varying float vTime;
-varying vec2 vResolution;
 void main() {
 	vColor = a_color;
 	vTexCoord = a_texCoord0;
 	vTime = time;
-	vResolution = resolution;
 
 	gl_Position = u_projTrans * a_position;
 }