From 22ab7c11c7740ac340c788bff857a0ef89a0b1c6 Mon Sep 17 00:00:00 2001
From: shadowislord <shadowislord@gmail.com>
Date: Tue, 4 Nov 2014 16:47:51 -0500
Subject: [PATCH]  * Ensure cubemaps have square dimensions before uploading

---
 .../src/main/java/com/jme3/renderer/lwjgl/LwjglRenderer.java   | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/jme3-lwjgl/src/main/java/com/jme3/renderer/lwjgl/LwjglRenderer.java b/jme3-lwjgl/src/main/java/com/jme3/renderer/lwjgl/LwjglRenderer.java
index c23919ded..a9fa42034 100644
--- a/jme3-lwjgl/src/main/java/com/jme3/renderer/lwjgl/LwjglRenderer.java
+++ b/jme3-lwjgl/src/main/java/com/jme3/renderer/lwjgl/LwjglRenderer.java
@@ -1955,6 +1955,9 @@ public class LwjglRenderer implements Renderer {
             if (img.getWidth() > maxCubeTexSize || img.getHeight() > maxCubeTexSize) {
                 throw new RendererException("Cannot upload cubemap " + img + ". The maximum supported cubemap resolution is " + maxCubeTexSize);
             }
+            if (img.getWidth() != img.getHeight()) {
+                throw new RendererException("Cubemaps must have square dimensions");
+            }
         } else {
             if (img.getWidth() > maxTexSize || img.getHeight() > maxTexSize) {
                 throw new RendererException("Cannot upload texture " + img + ". The maximum supported texture resolution is " + maxTexSize);