From 8eb93724f56d579193209ad154241f4dce2d5208 Mon Sep 17 00:00:00 2001
From: Psomers3 <37300408+psomers3@users.noreply.github.com>
Date: Fri, 30 Jul 2021 14:20:12 +0200
Subject: [PATCH] [SofaGL] Created persistent vparams and drawtool

This is a temporary fix to avoid a bad memory leak.
---
 .../src/SofaPython3/SofaGL/Binding_DrawToolGL.cpp    | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/bindings/Modules/src/SofaPython3/SofaGL/Binding_DrawToolGL.cpp b/bindings/Modules/src/SofaPython3/SofaGL/Binding_DrawToolGL.cpp
index 1348362a..c8fd4a94 100644
--- a/bindings/Modules/src/SofaPython3/SofaGL/Binding_DrawToolGL.cpp
+++ b/bindings/Modules/src/SofaPython3/SofaGL/Binding_DrawToolGL.cpp
@@ -39,11 +39,17 @@ using DrawToolGL = sofa::gl::DrawToolGL;
 
 namespace py { using namespace pybind11; }
 
+sofa::core::visual::VisualParams* vparam = nullptr;
+sofa::gl::DrawToolGL *drawtool = new sofa::gl::DrawToolGL();
+
 void moduleAddDrawToolGL(pybind11::module& m) {
     m.def("draw", [](Node* node){
-      auto* vparam = sofa::core::visual::VisualParams::defaultInstance();
-      vparam->drawTool() = new sofa::gl::DrawToolGL();
-      vparam->setSupported(sofa::core::visual::API_OpenGL);
+      if (!vparam)
+      {
+        vparam = sofa::core::visual::VisualParams::defaultInstance();
+        vparam->drawTool() = drawtool;
+        vparam->setSupported(sofa::core::visual::API_OpenGL);
+      }
       sofa::simulation::getSimulation()->draw(vparam, node);
     }, doc::SofaGL::draw);