# Select bottom ring edges and extrude down bottom_edges = [e for e in bm.edges if any(v in verts_bottom for v in e.verts) and e.is_boundary] # Simpler: extrude the bottom face region downwards. # First, select all bottom faces (the fan we created) bottom_faces = [f for f in bm.faces if all(v.co.z < -height/2 + 0.01 for v in f.verts)] if bottom_faces: geom = bottom_faces[:] ret = bmesh.ops.extrude_discrete_faces(bm, faces=bottom_faces) extrude_verts = [v for v in ret['verts'] if v.co.z < 0] # Move extruded vertices down for v in extrude_verts: v.co.z -= 0.2 # Create side walls for extrusion (need to fill quads). But this gets messy. # Given complexity, let's simplify: just keep the original closed mesh without extrusion, # as it is already a solid closed manifold (if bottom cap and top cap are present).
# Generate vertices for top and bottom rings verts_top = [] verts_bottom = [] for i in range(segments): angle = 2 * math.pi * i / segments x = radius * math.cos(angle) y = radius * math.sin(angle) # Top ring with gentle undulation (z varies with angle) z_top = height * (0.5 + 0.3 * math.sin(4 * angle)) # 4 lobes v_top = bm.verts.new((x, y, z_top)) verts_top.append(v_top) # Bottom ring (flat) v_bottom = bm.verts.new((x, y, -height/2)) verts_bottom.append(v_bottom)
# Clear existing mesh objects bpy.ops.object.select_all(action='SELECT') bpy.ops.object.delete(use_global=False)
# Write bmesh to mesh bm.to_mesh(mesh) bm.free() optima interior
# Add a material with a warm interior tone mat = bpy.data.materials.new(name="InteriorMaterial") mat.use_nodes = True nodes = mat.node_tree.nodes links = mat.node_tree.links nodes.clear() output = nodes.new(type='ShaderNodeOutputMaterial') principled = nodes.new(type='ShaderNodeBsdfPrincipled') principled.inputs['Base Color'].default_value = (0.8, 0.6, 0.4, 1.0) # warm wood/leather principled.inputs['Roughness'].default_value = 0.3 principled.inputs['Metallic'].default_value = 0.1 links.new(principled.outputs['BSDF'], output.inputs['Surface']) obj.data.materials.append(mat)
print("Generated 'Optima Interior' solid piece mesh.") This model forms a single closed mesh with a gently lobed upper surface, a flat base, and smooth subdivision-ready geometry. It is designed as a unified object suitable for rendering, 3D printing, or further sculpting of an organic interior volume.
# Add inner ring of vertices at a smaller radius to form a top surface with an inner void. inner_radius = 0.5 inner_verts = [] for i in range(segments): angle = 2 * math.pi * i / segments x = inner_radius * math.cos(angle) y = inner_radius * math.sin(angle) z = height * (0.5 + 0.3 * math.sin(4 * angle)) # same undulation v = bm.verts.new((x, y, z)) inner_verts.append(v) # Select bottom ring edges and extrude down
# Smooth shading for face in mesh.polygons: face.use_smooth = True
# Create a new mesh datablock and object mesh = bpy.data.meshes.new("OptimaInterior") obj = bpy.data.objects.new("OptimaInterior", mesh) bpy.context.collection.objects.link(obj) bpy.context.view_layer.objects.active = obj obj.select_set(True)
# Connect outer top ring to inner ring for i in range(segments): i_next = (i + 1) % segments bm.faces.new((verts_top[i], verts_top[i_next], inner_verts[i_next], inner_verts[i])) # Given complexity, let's simplify: just keep the
# Parameters radius = 1.0 height = 0.3 segments = 64 # High resolution for smooth curvature
# Create faces between top and bottom rings for i in range(segments): i_next = (i + 1) % segments # Quad between top and bottom bm.faces.new((verts_top[i], verts_top[i_next], verts_bottom[i_next], verts_bottom[i]))
# Create a central top cap (to make solid, but we want open interior? # Actually to be "solid" we need closed mesh. Let's add a top cap with hole? No, solid piece. # We'll create a central upper surface with a pattern.