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#7415 - GCodeViewer::refresh_render_paths() - Remove empty render paths to avoid calling glMultiDrawElements() with empty data while rendering toolpaths.

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enricoturri1966 2021-12-06 11:39:10 +01:00
parent d4d558ebee
commit c7a4f61238
1 changed files with 12 additions and 0 deletions
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12
src/slic3r/GUI/GCodeViewer.cpp
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@ -2433,6 +2433,18 @@ void GCodeViewer::refresh_render_paths(bool keep_sequential_current_first, bool
#endif #endif
} }
// removes empty render paths
for (size_t b = 0; b < m_buffers.size(); ++b) {
TBuffer* buffer = const_cast<TBuffer*>(&m_buffers[b]);
std::set<RenderPath, RenderPathPropertyLower>::iterator it = buffer->render_paths.begin();
while (it != buffer->render_paths.end()) {
if (it->sizes.empty() || it->offsets.empty())
it = buffer->render_paths.erase(it);
else
++it;
}
}
// second pass: for buffers using instanced and batched models, update the instances render ranges // second pass: for buffers using instanced and batched models, update the instances render ranges
for (size_t b = 0; b < m_buffers.size(); ++b) { for (size_t b = 0; b < m_buffers.size(); ++b) {
TBuffer& buffer = const_cast<TBuffer&>(m_buffers[b]); TBuffer& buffer = const_cast<TBuffer&>(m_buffers[b]);