diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e926638..93acd22 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -99,6 +99,40 @@ jobs:
           output_dir: ${{ github.workspace }}/tests-results_dir
           nb_parallel_threads: '4'
 
+      - name: Inspect repository tree
+        shell: bash
+        run: |
+          echo "Repository root:"
+          ls -la .
+          ls -la ${{ env.WORKSPACE_SRC_PATH }}
+
+          if [ -z "$SOFA_ROOT" ]; then
+              echo "SOFA_ROOT is not set"
+          else
+              echo "SOFA_ROOT=$SOFA_ROOT"
+          fi
+
+          if [ -z "$REGRESSION_DIR" ]; then
+              echo "REGRESSION_DIR is not set"
+          else
+              echo "REGRESSION_DIR=$REGRESSION_DIR"
+          fi
+      - name: Install Python dependencies
+        shell: bash
+        run: |
+          python -m pip install --upgrade pip
+          pip install tqdm
+
+      - name: New regression tests
+        shell: bash
+        env:
+          SOFA_ROOT: ${{ github.workspace }}/build
+        run: |
+          cd regression
+          python SofaRegressionProgram.py \
+              --input ${{ env.WORKSPACE_SRC_PATH }}/examples/ \
+              --output ${{ env.WORKSPACE_SRC_PATH }}/regression/references/
+
   deploy:
     name: Deploy artifacts
     if: always() && startsWith(github.ref, 'refs/heads/main') # we are on a branch (not a PR)
diff --git a/examples/RegressionStateScenes.regression-tests b/examples/RegressionStateScenes.regression-tests
index 55fa5be..d1ee129 100644
--- a/examples/RegressionStateScenes.regression-tests
+++ b/examples/RegressionStateScenes.regression-tests
@@ -5,9 +5,9 @@
 ../regression/references
 
 ### Demo scenes ###
-BeatingCube.scn 200 1e-4 1 1
-BeatingCube_moving.scn 200 1e-4 1 1
-Cube_AdvCarvingTexcoords.scn 500 1e-4 1 1
-Cube_Carving.scn 500 1e-4 1 1
-Cube_CarvingWithPenetration.scn 500 1e-4 1 1
-TetrahedronBeamMultiMaterials.scn 500 1e-4 1 1
+BeatingCube.scn 200 1e-4 1 20
+BeatingCube_moving.scn 200 1e-4 1 20
+Cube_AdvCarvingTexcoords.scn 500 1e-4 1 20
+Cube_Carving.scn 500 1e-4 1 20
+Cube_CarvingWithPenetration.scn 500 1e-4 1 20
+TetrahedronBeamMultiMaterials.scn 500 1e-4 1 20
diff --git a/regression/references/BeatingCube.scn.reference_mstate_0_Volume.json.gz b/regression/references/BeatingCube.scn.reference_mstate_0_Volume.json.gz
new file mode 100644
index 0000000..8db3f34
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diff --git a/regression/references/BeatingCube_moving.scn.reference_mstate_0_Volume.json.gz b/regression/references/BeatingCube_moving.scn.reference_mstate_0_Volume.json.gz
new file mode 100644
index 0000000..e2d0a3e
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diff --git a/regression/references/Cube_AdvCarvingTexcoords.scn.reference_mstate_0_Particles.json.gz b/regression/references/Cube_AdvCarvingTexcoords.scn.reference_mstate_0_Particles.json.gz
new file mode 100644
index 0000000..d7eda3b
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diff --git a/regression/references/Cube_AdvCarvingTexcoords.scn.reference_mstate_1_Volume.json.gz b/regression/references/Cube_AdvCarvingTexcoords.scn.reference_mstate_1_Volume.json.gz
new file mode 100644
index 0000000..55be870
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diff --git a/regression/references/Cube_Carving.scn.reference_mstate_0_Particles.json.gz b/regression/references/Cube_Carving.scn.reference_mstate_0_Particles.json.gz
new file mode 100644
index 0000000..54b4f74
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diff --git a/regression/references/Cube_Carving.scn.reference_mstate_1_Volume.json.gz b/regression/references/Cube_Carving.scn.reference_mstate_1_Volume.json.gz
new file mode 100644
index 0000000..a8f6796
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diff --git a/regression/references/Cube_CarvingWithPenetration.scn.reference_mstate_0_Particles.json.gz b/regression/references/Cube_CarvingWithPenetration.scn.reference_mstate_0_Particles.json.gz
new file mode 100644
index 0000000..a159f1d
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diff --git a/regression/references/Cube_CarvingWithPenetration.scn.reference_mstate_1_Volume.json.gz b/regression/references/Cube_CarvingWithPenetration.scn.reference_mstate_1_Volume.json.gz
new file mode 100644
index 0000000..489effd
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diff --git a/regression/references/TetrahedronBeamMultiMaterials.scn.reference_mstate_0_mechObj.json.gz b/regression/references/TetrahedronBeamMultiMaterials.scn.reference_mstate_0_mechObj.json.gz
new file mode 100644
index 0000000..b199760
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diff --git a/regression/references/TetrahedronBeamMultiMaterials.scn.reference_mstate_1_mechObj.json.gz b/regression/references/TetrahedronBeamMultiMaterials.scn.reference_mstate_1_mechObj.json.gz
new file mode 100644
index 0000000..8feb2bc
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