Real-time lighting + solar system rendering

core/src/mindustry/graphics/g3d/SunMesh.java

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+package mindustry.graphics.g3d;
+
+import arc.graphics.*;
+import arc.math.*;
+import mindustry.graphics.*;
+import mindustry.graphics.Shaders.*;
+import mindustry.type.*;
+
+public class SunMesh extends ShaderSphereMesh{
+    public int octaves = 5;
+    public float falloff = 0.5f, scale = 1f, power = 1.3f, magnitude = 0.6f, speed = 99999999999f, spread = 1.3f, seed = Mathf.random(9999f);
+    public float[] colorValues;
+
+    public SunMesh(Planet planet, int divisions){
+        super(planet, Shaders.sun, divisions);
+    }
+
+    public void setColors(Color... colors){
+        colorValues = new float[colors.length*4];
+
+        for(int i = 0; i < colors.length; i ++){
+            colorValues[i*4] = colors[i].r;
+            colorValues[i*4 + 1] = colors[i].g;
+            colorValues[i*4 + 2] = colors[i].b;
+            colorValues[i*4 + 3] = colors[i].a;
+        }
+    }
+
+    @Override
+    public void preRender(){
+        SunShader s = (SunShader)shader;
+        s.octaves = octaves;
+        s.falloff = falloff;
+        s.scale = scale;
+        s.power = power;
+        s.magnitude = magnitude;
+        s.speed = speed;
+        s.seed = seed;
+        s.colorValues = colorValues;
+    }
+}