Adds Custom Render Pipeline Interface

build.gradle

@@ -286,4 +286,4 @@ retrolambda {
   javaVersion JavaVersion.VERSION_1_7
   incremental true
     jvmArgs '-noverify'
-}
+}

jme3-core/src/main/java/com/jme3/material/TechniqueDef.java

@@ -824,4 +824,4 @@ public TechniqueDef clone() throws CloneNotSupportedException {
 
         return clone;
     }
-}
+}

jme3-core/src/main/java/com/jme3/renderer/GeometryRenderHandler.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2024 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.jme3.renderer;
+
+import com.jme3.scene.Geometry;
+
+/**
+ * Handles rendering of individual geometries.
+ * 
+ * @author codex
+ */
+public interface GeometryRenderHandler {
+
+    /**
+     * Default implementation that renders the geometry and returns true.
+     */
+    public static final GeometryRenderHandler DEFAULT = (rm, geom) -> {
+        rm.renderGeometry(geom);
+        return true;
+    };
+
+    /**
+     * Renders the given geometry, or returns false.
+     * 
+     * @param rm renderGeometry manager
+     * @param geom geometry to renderGeometry
+     * @return true if the geometry was rendered
+     */
+    public boolean renderGeometry(RenderManager rm, Geometry geom);
+
+}