Added cubemap stars

core/assets/shaders/cubemap.frag

@@ -0,0 +1,7 @@
+varying vec3 v_texCoords;
+
+uniform samplerCube u_cubemap;
+
+void main(){
+    gl_FragColor = textureCube(u_cubemap, v_texCoords);
+}

core/assets/shaders/cubemap.vert

@@ -0,0 +1,12 @@
+attribute vec3 a_position;
+
+varying vec3 v_texCoords;
+
+uniform mat4 u_proj;
+
+const float SCALE = 50.0;
+
+void main(){
+    v_texCoords = a_position;
+    gl_Position = u_proj * vec4(a_position * SCALE, 1.0);
+}

core/src/mindustry/graphics/CubemapMesh.java

@@ -0,0 +1,85 @@
+package mindustry.graphics;
+
+import arc.*;
+import arc.graphics.*;
+import arc.graphics.Texture.*;
+import arc.graphics.VertexAttributes.*;
+import arc.graphics.gl.*;
+import arc.math.geom.*;
+import arc.util.*;
+
+public class CubemapMesh implements Disposable{
+    private static final float[] vertices = {
+    -1.0f,  1.0f, -1.0f,
+    -1.0f, -1.0f, -1.0f,
+    1.0f, -1.0f, -1.0f,
+    1.0f, -1.0f, -1.0f,
+    1.0f,  1.0f, -1.0f,
+    -1.0f,  1.0f, -1.0f,
+
+    -1.0f, -1.0f,  1.0f,
+    -1.0f, -1.0f, -1.0f,
+    -1.0f,  1.0f, -1.0f,
+    -1.0f,  1.0f, -1.0f,
+    -1.0f,  1.0f,  1.0f,
+    -1.0f, -1.0f,  1.0f,
+
+    1.0f, -1.0f, -1.0f,
+    1.0f, -1.0f,  1.0f,
+    1.0f,  1.0f,  1.0f,
+    1.0f,  1.0f,  1.0f,
+    1.0f,  1.0f, -1.0f,
+    1.0f, -1.0f, -1.0f,
+
+    -1.0f, -1.0f,  1.0f,
+    -1.0f,  1.0f,  1.0f,
+    1.0f,  1.0f,  1.0f,
+    1.0f,  1.0f,  1.0f,
+    1.0f, -1.0f,  1.0f,
+    -1.0f, -1.0f,  1.0f,
+
+    -1.0f,  1.0f, -1.0f,
+    1.0f,  1.0f, -1.0f,
+    1.0f,  1.0f,  1.0f,
+    1.0f,  1.0f,  1.0f,
+    -1.0f,  1.0f,  1.0f,
+    -1.0f,  1.0f, -1.0f,
+
+    -1.0f, -1.0f, -1.0f,
+    -1.0f, -1.0f,  1.0f,
+    1.0f, -1.0f, -1.0f,
+    1.0f, -1.0f, -1.0f,
+    -1.0f, -1.0f,  1.0f,
+    1.0f, -1.0f,  1.0f
+    };
+
+    private final Mesh mesh;
+    private final Cubemap map;
+    private final Shader shader;
+
+    public CubemapMesh(Cubemap map){
+        this.map = map;
+        this.map.setFilter(TextureFilter.Linear);
+        this.mesh = new Mesh(true, vertices.length, 0,
+            new VertexAttribute(Usage.position, 3, "a_position")
+        );
+        mesh.getVerticesBuffer().limit(vertices.length);
+        mesh.getVerticesBuffer().put(vertices, 0, vertices.length);
+
+        shader = new Shader(Core.files.internal("shaders/cubemap.vert"), Core.files.internal("shaders/cubemap.frag"));
+    }
+
+    public void render(Mat3D projection){
+        map.bind();
+        shader.bind();
+        shader.setUniformi("u_cubemap", 0);
+        shader.setUniformMatrix4("u_proj", projection.val);
+        mesh.render(shader, Gl.triangles);
+    }
+
+    @Override
+    public void dispose(){
+        mesh.dispose();
+        map.dispose();
+    }
+}

core/src/mindustry/type/Planet.java

@@ -52,6 +52,8 @@ public class Planet extends UnlockableContent{
     public Color lightColor = Color.white.cpy();
     /** Atmosphere tint for landable planets. */
     public Color atmosphereColor = new Color(0.3f, 0.7f, 1.0f);
+    /** Whether this planet has an atmosphere. */
+    public boolean hasAtmosphere = true;
     /** Parent body that this planet orbits around. If null, this planet is considered to be in the middle of the solar system.*/
     public @Nullable Planet parent;
     /** The root parent of the whole solar system this planet is in. */

core/src/mindustry/ui/dialogs/PlanetDialog.java

@@ -63,11 +63,16 @@ public class PlanetDialog extends FloatingDialog{
         public Color getColor(Vec3 position){
             return Color.white;
         }
-    }, 3, false, 1.5f, 0f);
+    }, 2, false, 1.5f, 0f);
+
+    //seed: 8kmfuix03fw
+    private CubemapMesh skybox;
 
     public PlanetDialog(){
         super("", Styles.fullDialog);
 
+        skybox = new CubemapMesh(new Cubemap("cubemaps/stars/"));
+
         addCloseButton();
         buttons.addImageTextButton("$techtree", Icon.tree, () -> ui.tech.show()).size(230f, 64f);
 
@@ -150,6 +155,8 @@ public class PlanetDialog extends FloatingDialog{
 
         bloom.capture();
 
+        skybox.render(cam.combined);
+
         renderPlanet(solarSystem);
 
         bloom.render();
@@ -188,7 +195,6 @@ public class PlanetDialog extends FloatingDialog{
 
     private void renderPlanet(Planet planet){
         //render planet at offsetted position in the world
-
         planet.mesh.render(cam.combined, planet.getTransform(mat));
 
         renderOrbit(planet);
@@ -197,9 +203,8 @@ public class PlanetDialog extends FloatingDialog{
             renderSectors(planet);
         }
 
-        if(planet.parent != null){
+        if(planet.parent != null && planet.hasAtmosphere){
-            Gl.blendFunc(Gl.one, Gl.one);
+            Blending.additive.apply();
-            Gl.enable(Gl.blend);
 
             Shaders.atmosphere.camera = cam;
             Shaders.atmosphere.planet = planet;
@@ -208,7 +213,7 @@ public class PlanetDialog extends FloatingDialog{
 
             atmosphere.render(Shaders.atmosphere, Gl.triangles);
 
-            Gl.blendFunc(Blending.normal.src, Blending.normal.dst);
+            Blending.normal.apply();
         }
 
         for(Planet child : planet.children){