Commit: 4dddd543933ce9d5674b29ff408516022e67d23e
Author: Brecht Van Lommel
Date: Wed Nov 4 15:50:32 2020 +0100
Branches: blender-v2.91-release
https://developer.blender.org/rB4dddd543933ce9d5674b29ff408516022e67d23e
Fix T82016: Cycles assert with empty OpenVDB volumes
===================================================================
M intern/cycles/render/volume.cpp
===================================================================
diff --git a/intern/cycles/render/volume.cpp b/intern/cycles/render/volume.cpp
index a8edc04f8a9..fcf33a5e50a 100644
--- a/intern/cycles/render/volume.cpp
+++ b/intern/cycles/render/volume.cpp
@@ -438,10 +438,15 @@ static openvdb::GridBase::ConstPtr
openvdb_grid_from_device_texture(device_textu
image_memory->data_width - 1,
image_memory->data_height - 1,
image_memory->data_depth - 1);
+
+ typename GridType::Ptr sparse = GridType::create(ValueType(0.0f));
+ if (dense_bbox.empty()) {
+ return sparse;
+ }
+
openvdb::tools::Dense<ValueType, openvdb::tools::MemoryLayout::LayoutXYZ>
dense(
dense_bbox, static_cast<ValueType *>(image_memory->host_pointer));
- typename GridType::Ptr sparse = GridType::create(ValueType(0.0f));
openvdb::tools::copyFromDense(dense, *sparse, ValueType(volume_clipping));
/* #copyFromDense will remove any leaf node that contains constant data and
replace it with a
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