updates

examples/rendering.py

@@ -0,0 +1,69 @@
+import open3d as o3d
+import mitsuba as mi
+
+
+def render_mesh(mesh, mesh_center):
+    scene = mi.load_dict({
+        'type': 'scene',
+        'integrator': {
+            'type': 'path'
+        },
+        'light': {
+            'type': 'constant',
+            'radiance': {
+                'type': 'rgb',
+                'value': 1.0
+            }
+            # NOTE: For better results comment out the constant emitter above
+            # and uncomment out the lines below changing the filename to an HDRI
+            # envmap you have.
+            # 'type': 'envmap',
+            # 'filename': '/home/renes/Downloads/solitude_interior_4k.exr'
+        },
+        'sensor': {
+            'type':
+                'perspective',
+            'focal_length':
+                '50mm',
+            'to_world':
+                mi.ScalarTransform4f.look_at(origin=[0, 0, 5],
+                                             target=mesh_center,
+                                             up=[0, 1, 0]),
+            'thefilm': {
+                'type': 'hdrfilm',
+                'width': 1024,
+                'height': 768,
+            },
+            'thesampler': {
+                'type': 'multijitter',
+                'sample_count': 64,
+            },
+        },
+        'themesh': mesh,
+    })
+
+    img = mi.render(scene, spp=256)
+    return img
+
+
+# Default to LLVM variant which should be available on all
+# platforms. If you have a system with a CUDA device then comment out LLVM
+# variant and uncomment cuda variant
+mi.set_variant('llvm_ad_rgb')
+# mi.set_variant('cuda_ad_rgb')
+
+
+mesh = o3d.t.geometry.TriangleMesh.create_sphere(radius=1.0)
+mesh.compute_vertex_normals()
+mesh_center = mesh.get_axis_aligned_bounding_box().get_center()
+
+
+# mesh.material.set_default_properties()
+print('Render mesh with material converted to Mitsuba principled BSDF')
+# mi_mesh = mesh.to_mitsuba('sphere')
+# img = render_mesh(mi_mesh, mesh_center.numpy())
+# mi.Bitmap(img).write('test.exr')
+
+
+# Render with Open3D
+o3d.visualization.draw(mesh)

znvis/visualizer/visualizer.py

@@ -394,7 +394,7 @@ def save_callable():
                     mesh += item.mesh_list[self.counter]
 
             o3d.io.write_triangle_mesh(
-                (self.obj_folder / f"export_mesh_{self.counter}.obj").as_posix(), mesh
+                (self.obj_folder / f"export_mesh_{self.counter}.ply").as_posix(), mesh
             )
             self.save_thread_finished = True