space

core/assets/shaders/space.frag

@@ -0,0 +1,23 @@
+#define HIGHP
+#define NSCALE 2000.0
+#define CAMSCALE (NSCALE*1.1)
+
+uniform sampler2D u_texture;
+uniform sampler2D u_stars;
+
+uniform vec2 u_campos;
+uniform vec2 u_ccampos;
+uniform vec2 u_resolution;
+uniform float u_time;
+
+varying vec2 v_texCoords;
+
+void main(){
+    vec2 c = v_texCoords.xy;
+    vec2 coords = vec2(c.x * u_resolution.x + u_campos.x, c.y * u_resolution.y + u_campos.y);
+
+    vec4 color = texture2D(u_texture, c);
+    color.rgb = texture2D(u_stars, coords / NSCALE + vec2(0.5, 0.3) - u_ccampos / CAMSCALE);
+
+    gl_FragColor = color;
+}