From 06ea668225904cd8f10abfc361a6de1236de87c2 Mon Sep 17 00:00:00 2001
From: Emma Broman <emma.broman@liu.se>
Date: Mon, 2 May 2022 09:51:26 +0200
Subject: [PATCH] Prevent crash from using colormap without entries

Can happen if all colormap variables were set, but the file didn't exist or couldn't be loaded
---
 modules/digitaluniverse/rendering/renderablebillboardscloud.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/digitaluniverse/rendering/renderablebillboardscloud.cpp b/modules/digitaluniverse/rendering/renderablebillboardscloud.cpp
index 0c842c1a8f..75debb26a2 100644
--- a/modules/digitaluniverse/rendering/renderablebillboardscloud.cpp
+++ b/modules/digitaluniverse/rendering/renderablebillboardscloud.cpp
@@ -1053,7 +1053,7 @@ std::vector<float> RenderableBillboardsCloud::createDataSlice() {
         const double r = glm::length(p);
         maxRadius = std::max(maxRadius, r);
 
-        if (_hasColorMapFile) {
+        if (_hasColorMapFile && _useColorMap && !_colorMap.entries.empty()) {
             for (int j = 0; j < 4; ++j) {
                 result.push_back(position[j]);
             }