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-rw-r--r--modules/lightmapper_rd/lightmapper_rd.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/modules/lightmapper_rd/lightmapper_rd.cpp b/modules/lightmapper_rd/lightmapper_rd.cpp
index 74dc54641d..5c2c3f96de 100644
--- a/modules/lightmapper_rd/lightmapper_rd.cpp
+++ b/modules/lightmapper_rd/lightmapper_rd.cpp
@@ -357,7 +357,7 @@ void LightmapperRD::_create_acceleration_structures(RenderingDevice *rd, Size2i
for (int m_i = 0; m_i < mesh_instances.size(); m_i++) {
if (p_step_function) {
- float p = float(m_i + 1) / mesh_instances.size() * 0.1;
+ float p = float(m_i + 1) / MAX(1, mesh_instances.size()) * 0.1;
p_step_function(0.3 + p, vformat(RTR("Plotting mesh into acceleration structure %d/%d"), m_i + 1, mesh_instances.size()), p_bake_userdata, false);
}