From c2fcffb0d8c9fde61f3c492628b11301c24b619d Mon Sep 17 00:00:00 2001
From: Anuken <arnukren@gmail.com>
Date: Fri, 13 Aug 2021 23:49:47 -0400
Subject: [PATCH] Planet frustum culling

---
 core/src/mindustry/graphics/g3d/PlanetRenderer.java | 10 +++++++---
 core/src/mindustry/type/Planet.java                 |  5 ++++-
 gradle.properties                                   |  2 +-
 3 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/core/src/mindustry/graphics/g3d/PlanetRenderer.java b/core/src/mindustry/graphics/g3d/PlanetRenderer.java
index 64b3dd7c39..c7938cd11e 100644
--- a/core/src/mindustry/graphics/g3d/PlanetRenderer.java
+++ b/core/src/mindustry/graphics/g3d/PlanetRenderer.java
@@ -136,8 +136,12 @@ public class PlanetRenderer implements Disposable{
     public void renderPlanet(Planet planet){
         if(!planet.visible()) return;
 
-        //render planet at offsetted position in the world
-        planet.draw(cam.combined, planet.getTransform(mat));
+        cam.update();
+
+        if(cam.frustum.containsSphere(planet.position, planet.clipRadius)){
+            //render planet at offsetted position in the world
+            planet.draw(cam.combined, planet.getTransform(mat));
+        }
 
         renderOrbit(planet);
 
@@ -153,7 +157,7 @@ public class PlanetRenderer implements Disposable{
             renderSectors(planet);
         }
 
-        if(planet.parent != null && planet.hasAtmosphere && Core.settings.getBool("atmosphere")){
+        if(cam.frustum.containsSphere(planet.position, planet.clipRadius) && planet.parent != null && planet.hasAtmosphere && Core.settings.getBool("atmosphere")){
             Gl.depthMask(false);
 
             Blending.additive.apply();
diff --git a/core/src/mindustry/type/Planet.java b/core/src/mindustry/type/Planet.java
index 06499d9ca0..73cb0f58c0 100644
--- a/core/src/mindustry/type/Planet.java
+++ b/core/src/mindustry/type/Planet.java
@@ -35,6 +35,8 @@ public class Planet extends UnlockableContent{
     public float radius;
     /** Atmosphere radius adjustment parameters. */
     public float atmosphereRadIn = 0, atmosphereRadOut = 0.3f;
+    /** Frustrum sphere clip radius. */
+    public float clipRadius = -1f;
     /** Orbital radius around the sun. Do not change unless you know exactly what you are doing.*/
     public float orbitRadius;
     /** Total radius of this planet and all its children. */
@@ -47,7 +49,7 @@ public class Planet extends UnlockableContent{
     public float sectorApproxRadius;
     /** Whether this planet is tidally locked relative to its parent - see https://en.wikipedia.org/wiki/Tidal_locking */
     public boolean tidalLock = false;
-    /** Whether or not this planet is listed in the planet access UI. **/
+    /** Whether this planet is listed in the planet access UI. **/
     public boolean accessible = true;
     /** The default starting sector displayed to the map dialog. */
     public int startSector = 0;
@@ -237,6 +239,7 @@ public class Planet extends UnlockableContent{
             updateBaseCoverage();
         }
 
+        clipRadius = Math.max(clipRadius, radius + atmosphereRadOut + 0.5f);
     }
 
     @Override
diff --git a/gradle.properties b/gradle.properties
index 9bb15d466d..fab70b4810 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -11,4 +11,4 @@ android.useAndroidX=true
 #used for slow jitpack builds; TODO see if this actually works
 http.socketTimeout=80000
 http.connectionTimeout=80000
-archash=4c1533ad063b0e91b9536e9aa6ff0c998e2489e2
+archash=d85d38b6ad854623af961178e6fc951caeff0598