background changed, pellet resized, other minor cleanups and adjustments

android/assets/shaders/invert_frag.glsl

@@ -9,6 +9,7 @@ varying LOWP vec4 vColor;
 varying vec2 vTexCoord;
 
 uniform sampler2D u_texture;
+
 void main() {
 	vec4 texColor = texture2D(u_texture, vTexCoord);
 	texColor.rgb = 1.0 - texColor.rgb;

android/assets/shaders/star_frag.glsl

@@ -1,89 +0,0 @@
-// from https://www.shadertoy.com/view/Msf3Wr
-
-#define GLSLSANDBOX
-#ifdef GLSLSANDBOX
-#ifdef GL_ES
-precision mediump float;
-#endif
-uniform float time;
-#ifndef GLSLSANDBOXTOYNOTCOMPATIBLE
-uniform vec4 iMouse;
-uniform int iFrame;
-#else /*GLSLSANDBOXTOYNOTCOMPATIBLE*/
-uniform vec2 mouse;
-#define iMouse mouse
-#endif /*GLSLSANDBOXTOYNOTCOMPATIBLE*/
-uniform vec2 resolution;
-#define iGlobalTime time
-#define iResolution (vec3(resolution, 1.))
-#endif /*GLSLSANDBOX*/
-
-
-#define iterations 17
-#define formuparam 0.53
-
-#define volsteps 20
-#define stepsize 0.1
-
-#define zoom   0.800
-#define tile   0.850
-#define speed  0.010
-
-#define brightness 0.0015
-#define darkmatter 0.300
-#define distfading 0.730
-#define saturation 0.850
-
-
-void mainImage( out vec4 fragColor, in vec2 fragCoord )
-{
-	//get coords and direction
-	vec2 uv=fragCoord.xy/iResolution.xy-.5;
-	uv.y*=iResolution.y/iResolution.x;
-	vec3 dir=vec3(uv*zoom,1.);
-	float time=iGlobalTime*speed+.25;
-
-	float a1=.5+time/iResolution.x*2.;
-	float a2=.8+time/iResolution.y*2.;
-	mat2 rot1=mat2(cos(a1),sin(a1),-sin(a1),cos(a1));
-	mat2 rot2=mat2(cos(a2),sin(a2),-sin(a2),cos(a2));
-	dir.xz*=rot1;
-	dir.xy*=rot2;
-	vec3 from=vec3(1.,.5,0.5);
-	from+=vec3(time*2.,time,-2.);
-	from.xz*=rot1;
-	from.xy*=rot2;
-
-	//volumetric rendering
-	float s=0.1,fade=1.;
-	vec3 v=vec3(0.);
-	for (int r=0; r<volsteps; r++) {
-		vec3 p=from+s*dir*.5;
-		p = abs(vec3(tile)-mod(p,vec3(tile*2.))); // tiling fold
-		float pa,a=pa=0.;
-		for (int i=0; i<iterations; i++) {
-			p=abs(p)/dot(p,p)-formuparam; // the magic formula
-			a+=abs(length(p)-pa); // absolute sum of average change
-			pa=length(p);
-		}
-		float dm=max(0.,darkmatter-a*a*.001); //dark matter
-		a*=a*a; // add contrast
-		if (r>6) fade*=1.-dm; // dark matter, don't render near
-		//v+=vec3(dm,dm*.5,0.);
-		v+=fade;
-		v+=vec3(s,s*s,s*s*s*s)*a*brightness*fade; // coloring based on distance
-		fade*=distfading; // distance fading
-		s+=stepsize;
-	}
-	v=mix(vec3(length(v)),v,saturation); //color adjust
-	fragColor = vec4(v*.01,1.);
-
-}
-
-void main (void)
-{
-  vec4 color = vec4 (0.0, 0.0, 0.0, 1.0);
-  mainImage (color, gl_FragCoord.xy);
-  color.w = 1.0;
-  gl_FragColor = color;
-}

android/assets/shaders/star_vert.glsl

@@ -1,12 +0,0 @@
-attribute vec4 a_position;
-attribute vec4 a_color;
-attribute vec2 a_texCoord0;
-
-uniform mat4 u_projTrans;
-
-varying vec2 vTexCoord;
-void main() {
-	vTexCoord = a_texCoord0;
-
-	gl_Position = u_projTrans * a_position;
-}