Render Window — hero
camera + framing set up by the AI contestant
3D Viewport — cabin-pond User Persp
LOADING 3D VIEW
$2.48Cost
467sDuration
50Tool calls
51Turns
Blender —MCP —2026-07-14
Tokens: 1127108/22664Vision: ✓Votes W-L-T: 3-4-0NO DONE
B-BENCH — TRANSCRIPT Anthropic / Sonnet 5 · r1 · 2026-07-14
RUN LOG — cabin-pond · Anthropic / Sonnet 5 · r1 · ok
SYSTEM PROMPTthe control — every model on this task got these instructions
SHOW FULL PROMPT · 432 chars
You are operating Blender through the provided tools. Build what the user's prompt asks for in the current scene. Work step by step and verify your own work. Before you finish, set up a camera and lighting to frame a single, well-composed presentation image of your result — position and aim the camera, and add or adjust lights so the subject reads clearly. When you are finished, reply with the single word DONE and no tool calls.
--TASK cabin-pond: A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees.
47:18>>get_scene_info({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
47:18<<{
"name": "Scene",
"object_count": 2,
"objects": [
{
"name": "Cube",
"type": "MESH",
"location": [
0.0,
0.0,
0.0
]
},
{
"name": "Light",
"type": "LIGHT",
"location": [
4.08,
1.01,
5.9
]
}
],
"materials_count": 2
}
47:29>>execute_blender_code({"code":"\nimport bpy\n\n# Clear default scene objects\nfor obj in list(bpy.data.objects):\n bpy.data.objects.remove(obj, do_unlink=True)\n\nprint(\"Scene cleared\")\n","user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
47:29<<Code executed successfully: Scene cleared
47:54>>execute_blender_code({"code":"\nimport bpy, math\n\ndef new_material(name, base_color, roughness=0.5, metallic=0.0, emission=None):\n mat = bpy.data.materials.new(name=name)\n mat.use_nodes = True\n bsdf = mat.node_tree.nodes.get(\"Principled BSDF\")\n bsdf.inputs[\"Base Color\"].default_value = base_color\n bsdf.inputs[\"Roughness\"].default_value = roughness\n bsdf.inputs[\"Metallic\"].default_valu…)
47:54<<Code executed successfully: Ground and pond created
48:04>>execute_blender_code({"code":"\nimport bpy\n\n# Remove previous pond to reposition cleanly\nbpy.data.objects.remove(bpy.data.objects[\"Pond\"], do_unlink=True)\n\nbpy.ops.mesh.primitive_circle_add(radius=6, fill_type='NGON', location=(6, 0, -0.03))\npond = bpy.context.active_object\npond.name = \"Pond\"\nwater_mat = bpy.data.materials[\"Water\"]\npond.data.materials.append(water_mat)\nprint(pond.location)\n","user_pro…)
48:04<<Code executed successfully: <Vector (6.0000, 0.0000, -0.0300)>
48:20>>execute_blender_code({"code":"\nimport bpy, bmesh, math\nfrom mathutils import Vector\n\ndef new_material(name, base_color, roughness=0.5, metallic=0.0):\n if name in bpy.data.materials:\n return bpy.data.materials[name]\n mat = bpy.data.materials.new(name=name)\n mat.use_nodes = True\n bsdf = mat.node_tree.nodes.get(\"Principled BSDF\")\n bsdf.inputs[\"Base Color\"].default_value = base_color\n …)
48:20<<Code executed successfully: Walls created <Vector (4.0000, 3.2000, 2.4000)>
48:34>>execute_blender_code({"code":"\nimport bpy, bmesh\nfrom mathutils import Vector\n\ncabin_loc = Vector((-2.0, 0.0, 0.0))\ncabin_width = 4.0\ncabin_depth = 3.2\nwall_height = 2.4\nroof_height = 1.4\noverhang = 0.4\n\n# Build a triangular-prism roof using bmesh\nmesh = bpy.data.meshes.new(\"Roof_Mesh\")\nbm = bmesh.new()\n\nhalf_w = cabin_width/2 + overhang\nhalf_d = cabin_depth/2 + overhang\nbase_z = wall_height\npeak_z…)
48:34<<Code executed successfully: Roof created
48:38>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
48:39<<
48:39imgimage delivered — get_viewport_screenshot
48:47>>execute_blender_code({"code":"\nimport bpy\n\n# Switch viewport shading to material preview for all 3D view areas\nfor area in bpy.context.screen.areas:\n if area.type == 'VIEW_3D':\n for space in area.spaces:\n if space.type == 'VIEW_3D':\n space.shading.type = 'MATERIAL'\nprint(\"done\")\n","user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a…)
48:47<<Code executed successfully: done
48:56ai>Materials look applied but the ground/pond aren't visible from this angle. Let's continue adding the chimney, door, windows, dock, and trees before checking the render again.
48:56>>execute_blender_code({"code":"\nimport bpy\nfrom mathutils import Vector\n\ncabin_loc = Vector((-2.0, 0.0, 0.0))\ncabin_width = 4.0\ncabin_depth = 3.2\nwall_height = 2.4\n\nstone_mat = bpy.data.materials[\"Stone_Chimney\"]\n\n# Chimney - place on the back-right side of the cabin, going up through roof\nchimney_w = 0.7\nchimney_h = 3.6\nchimney_x = cabin_loc.x + cabin_width/2 - 0.9\nchimney_y = cabin_loc.y + cabin_dept…)
48:56<<Code executed successfully: Chimney created at -0.9 1.0
49:24>>execute_blender_code({"code":"\nimport bpy\nfrom mathutils import Vector\n\ncabin_loc = Vector((-2.0, 0.0, 0.0))\ncabin_width = 4.0\ncabin_depth = 3.2\nwall_height = 2.4\n\ndoor_mat = bpy.data.materials[\"Door_Wood\"]\nwindow_mat = bpy.data.materials[\"Window_Glass\"]\n\n# Door on +X wall (facing pond), slightly toward one side\ndoor_w = 0.9\ndoor_h = 1.9\ndoor_x = cabin_loc.x + cabin_width/2 + 0.01 # just outside wa…)
49:24<<Code executed successfully: Door and windows created
49:36ai>Now let's add wood plank details (log-style horizontal lines via a texture bump would be complex; instead let's add some log-end cylinders at corners for a log-cabin look), plus the dock and trees.
49:36>>execute_blender_code({"code":"\nimport bpy\nfrom mathutils import Vector\n\ncabin_loc = Vector((-2.0, 0.0, 0.0))\ncabin_width = 4.0\ncabin_depth = 3.2\nwall_height = 2.4\nlog_end_mat = bpy.data.materials[\"Log_End\"]\n\n# Add log-end cylinders at the 4 corners to suggest log cabin construction\ncorners = [\n (cabin_loc.x - cabin_width/2, cabin_loc.y - cabin_depth/2),\n (cabin_loc.x + cabin_width/2, cabin_loc.y -…)
49:36<<Code executed successfully: Log ends added
49:41>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
49:42<<
49:42imgimage delivered — get_viewport_screenshot
49:48>>execute_blender_code({"code":"\nimport bpy\nfor area in bpy.context.screen.areas:\n if area.type == 'VIEW_3D':\n for space in area.spaces:\n if space.type == 'VIEW_3D':\n print(space.shading.type)\n space.shading.type = 'SOLID'\n","user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
49:48<<Code executed successfully: MATERIAL
49:52>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
49:53<<
49:53imgimage delivered — get_viewport_screenshot
50:00>>execute_blender_code({"code":"\nimport bpy\n\n# Frame all objects in the viewport\nfor area in bpy.context.screen.areas:\n if area.type == 'VIEW_3D':\n for region in area.regions:\n if region.type == 'WINDOW':\n override = bpy.context.copy()\n override['area'] = area\n override['region'] = region\n with bpy.context.temp_override(area=area…)
50:00<<Code executed successfully: done
50:05>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
50:05<<
50:05imgimage delivered — get_viewport_screenshot
50:11>>get_scene_info({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
50:11<<{
"name": "Scene",
"object_count": 42,
"objects": [
{
"name": "Ground",
"type": "MESH",
"location": [
0.0,
0.0,
0.0
]
},
{
"name": "Pond",
"type": "MESH",
"location": [
6.0,
0.0,
-0.03
]
},
{
"name": "Cabin_Walls",
"type": "MESH",
"location": [
-2.0,
…
50:17ai>Objects exist. The screenshot is showing black likely because the viewport lost sync or the light was deleted. Let me check the scene's lighting and camera setup.
50:17>>execute_blender_code({"code":"\nimport bpy\nprint([o.name for o in bpy.data.objects if o.type=='LIGHT'])\nprint([o.name for o in bpy.data.objects if o.type=='CAMERA'])\nprint(bpy.context.scene.world)\nif bpy.context.scene.world:\n print(bpy.context.scene.world.use_nodes)\n","user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
50:17<<Code executed successfully: []
[]
<bpy_struct, World("World") at 0x000001CDABFAB8A0>
True
50:25>>execute_blender_code({"code":"\nimport bpy\n\n# Add a sun light temporarily so we can preview\nbpy.ops.object.light_add(type='SUN', location=(5, -5, 10))\nsun = bpy.context.active_object\nsun.name = \"Sun_Temp\"\nsun.data.energy = 3\n\nfor area in bpy.context.screen.areas:\n if area.type == 'VIEW_3D':\n for space in area.spaces:\n if space.type == 'VIEW_3D':\n space.shading.type = '…)
50:25<<Code executed successfully: done
50:32>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
50:33<<
50:33imgimage delivered — get_viewport_screenshot
50:39>>execute_blender_code({"code":"\nimport bpy\nfor area in bpy.context.screen.areas:\n if area.type == 'VIEW_3D':\n for space in area.spaces:\n if space.type == 'VIEW_3D':\n r3d = space.region_3d\n print(\"view_location:\", r3d.view_location)\n print(\"view_distance:\", r3d.view_distance)\n print(\"view_perspective:\", r3d.view_perspective)\…)
50:39<<Code executed successfully: view_location: <Vector (0.0000, 0.0000, 1.8850)>
view_distance: 66.86680603027344
view_perspective: PERSP
clip_start/end: 0.009999999776482582 1000.0
50:46>>execute_blender_code({"code":"\nimport bpy\n\nfor area in bpy.context.screen.areas:\n if area.type == 'VIEW_3D':\n for space in area.spaces:\n if space.type == 'VIEW_3D':\n space.shading.type = 'SOLID'\n space.shading.light = 'STUDIO'\n space.overlay.show_overlays = True\n\n# Set view via operator to look at origin from an angle\nimport bmesh\nbpy.ops.o…)
50:46<<Code executed successfully: done
50:52>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
50:53<<
50:53imgimage delivered — get_viewport_screenshot
51:01ai>Good, now I can see the scene. Let me remove the temp sun and zoom in on the cabin to check details.
51:01>>execute_blender_code({"code":"\nimport bpy\n\n# Zoom into cabin area by setting the 3D cursor and using view selected\nbpy.ops.object.select_all(action='DESELECT')\nbpy.data.objects[\"Cabin_Walls\"].select_set(True)\nbpy.data.objects[\"Cabin_Roof\"].select_set(True)\nbpy.data.objects[\"Chimney\"].select_set(True)\n\nfor area in bpy.context.screen.areas:\n if area.type == 'VIEW_3D':\n for region in area.regio…)
51:01<<Code executed successfully: done
51:09>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
51:10<<
51:10imgimage delivered — get_viewport_screenshot
51:19ai>The cabin structure looks good with roof, chimney, door, window, and log-end details. Let's check materials render correctly.
51:19>>execute_blender_code({"code":"\nimport bpy\nfor area in bpy.context.screen.areas:\n if area.type == 'VIEW_3D':\n for space in area.spaces:\n if space.type == 'VIEW_3D':\n space.shading.type = 'MATERIAL'\n","user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
51:20<<Code executed successfully:
51:23>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
51:25<<
51:25imgimage delivered — get_viewport_screenshot
51:32ai>Looking good! Now let's remove the temp sun (we'll set up proper lighting later) and add the dock and trees.
51:32>>execute_blender_code({"code":"\nimport bpy\nbpy.data.objects.remove(bpy.data.objects[\"Sun_Temp\"], do_unlink=True)\nprint(\"removed\")\n","user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
51:32<<Code executed successfully: removed
51:46ai>Now let's build the dock extending from near the cabin into the pond.
51:46>>execute_blender_code({"code":"\nimport bpy\nfrom mathutils import Vector\n\ndef new_material(name, base_color, roughness=0.5, metallic=0.0):\n if name in bpy.data.materials:\n return bpy.data.materials[name]\n mat = bpy.data.materials.new(name=name)\n mat.use_nodes = True\n bsdf = mat.node_tree.nodes.get(\"Principled BSDF\")\n bsdf.inputs[\"Base Color\"].default_value = base_color\n bsdf.input…)
51:46<<Code executed successfully: Dock created
51:59ai>Now let's add trees around the cabin and pond.
51:59>>execute_blender_code({"code":"\nimport bpy, random\nfrom mathutils import Vector\n\ndef new_material(name, base_color, roughness=0.5, metallic=0.0):\n if name in bpy.data.materials:\n return bpy.data.materials[name]\n mat = bpy.data.materials.new(name=name)\n mat.use_nodes = True\n bsdf = mat.node_tree.nodes.get(\"Principled BSDF\")\n bsdf.inputs[\"Base Color\"].default_value = base_color\n bs…)
51:59<<Code executed successfully: Trees created
52:05>>execute_blender_code({"code":"\nimport bpy\n\n# Add temp sun again to view\nbpy.ops.object.light_add(type='SUN', location=(5, -5, 10))\nsun = bpy.context.active_object\nsun.name = \"Sun_Temp\"\nsun.data.energy = 3\nsun.rotation_euler = (0.6, 0, 0.8)\n\nfor area in bpy.context.screen.areas:\n if area.type == 'VIEW_3D':\n for region in area.regions:\n if region.type == 'WINDOW':\n wit…)
52:05<<Code executed successfully: done
52:09>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
52:10<<
52:10imgimage delivered — get_viewport_screenshot
52:23>>execute_blender_code({"code":"\nimport bpy\n\n# Switch to top view to check layout\nfor area in bpy.context.screen.areas:\n if area.type == 'VIEW_3D':\n for region in area.regions:\n if region.type == 'WINDOW':\n with bpy.context.temp_override(area=area, region=region):\n bpy.ops.view3d.view_axis(type='TOP')\n bpy.ops.view3d.view_all()\n …)
52:23<<Code executed successfully: done
52:28>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
52:30<<
52:30imgimage delivered — get_viewport_screenshot
52:41>>execute_blender_code({"code":"\nimport bpy\n\n# The pond was placed below the ground plane, making it invisible. Raise it slightly above.\npond = bpy.data.objects[\"Pond\"]\npond.location.z = 0.02\nprint(pond.location)\n","user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
52:41<<Code executed successfully: <Vector (6.0000, 0.0000, 0.0200)>
52:46>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
52:47<<
52:47imgimage delivered — get_viewport_screenshot
53:02>>execute_blender_code({"code":"\nimport bpy\n\n# Remove old dock objects to reposition properly\nfor name in list(bpy.data.objects.keys()):\n if name.startswith(\"Dock_\"):\n bpy.data.objects.remove(bpy.data.objects[name], do_unlink=True)\n\nprint(\"Old dock removed\")\n","user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
53:02<<Code executed successfully: Old dock removed
53:14>>execute_blender_code({"code":"\nimport bpy\nfrom mathutils import Vector\n\ndef get_mat(name):\n return bpy.data.materials[name]\n\ndock_wood_mat = get_mat(\"Dock_Wood\")\npost_mat = get_mat(\"Dock_Post\")\ngroove_mat = get_mat(\"Dock_Groove\")\n\ndock_start_x = 0.3\ndock_length = 5.0\ndock_width = 1.4\ndock_y = -2.2 # offset from cabin center, clear of door/windows\n\nbpy.ops.mesh.primitive_cube_add(size=1, locat…)
53:15<<Code executed successfully: Dock repositioned
53:20>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
53:21<<
53:21imgimage delivered — get_viewport_screenshot
53:27ai>Now the dock properly extends into the pond, positioned near the door. The composition looks good from top view. Let's check a perspective view now.
53:27>>execute_blender_code({"code":"\nimport bpy\nfor area in bpy.context.screen.areas:\n if area.type == 'VIEW_3D':\n for region in area.regions:\n if region.type == 'WINDOW':\n with bpy.context.temp_override(area=area, region=region):\n bpy.ops.view3d.view_axis(type='FRONT')\n bpy.ops.view3d.view_all()\n break\n break\n","user_…)
53:27<<Code executed successfully:
53:31>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
53:33<<
53:33imgimage delivered — get_viewport_screenshot
53:46ai>The layout is good overall. Now let's set up a proper camera position and lighting for the final presentation shot.
53:46>>execute_blender_code({"code":"\nimport bpy\nimport math\n\n# Remove temp sun, we'll set up final lighting\nif \"Sun_Temp\" in bpy.data.objects:\n bpy.data.objects.remove(bpy.data.objects[\"Sun_Temp\"], do_unlink=True)\n\n# Add camera\nbpy.ops.object.camera_add(location=(9, -10, 4.5))\ncam = bpy.context.active_object\ncam.name = \"Main_Camera\"\n\n# Point camera towards cabin area (roughly at -1, 0, 1.5)\ntarget = (…)
53:46<<Code executed successfully: Camera set at <Vector (9.0000, -10.0000, 4.5000)> rotation <Euler (x=1.3470, y=0.0000, z=0.8098), order='XYZ'>
53:55>>execute_blender_code({"code":"\nimport bpy\nimport math\n\n# Sun light - warm late afternoon light\nbpy.ops.object.light_add(type='SUN', location=(10, -8, 12))\nsun = bpy.context.active_object\nsun.name = \"Sun_Main\"\nsun.data.energy = 3.5\nsun.data.color = (1.0, 0.92, 0.75)\nsun.rotation_euler = (math.radians(55), 0, math.radians(35))\n\n# Fill light - soft, cooler, from opposite side to lift shadows\nbpy.ops.object…)
53:55<<Code executed successfully: Lights added
54:02>>execute_blender_code({"code":"\nimport bpy\n\n# Set world background to a soft sky color\nworld = bpy.context.scene.world\nworld.use_nodes = True\nbg = world.node_tree.nodes.get(\"Background\")\nbg.inputs[0].default_value = (0.55, 0.7, 0.85, 1)\nbg.inputs[1].default_value = 1.0\n\n# Switch viewport to camera view for preview\nfor area in bpy.context.screen.areas:\n if area.type == 'VIEW_3D':\n for region in …)
54:02<<Code executed successfully: done
54:08>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
54:10<<
54:10imgimage delivered — get_viewport_screenshot
54:16ai>This is a great composition! The cabin, chimney, dock, pond, and trees are all clearly visible. Let me refine the camera angle slightly and check a few details.
54:16>>execute_blender_code({"code":"\nimport bpy\nimport mathutils\n\ncam = bpy.data.objects[\"Main_Camera\"]\n# Slightly adjust camera position for better framing - move back and up a touch, aim a bit lower to include water reflection foreground\ncam.location = (9.5, -9.0, 4.0)\ntarget = mathutils.Vector((-1.5, 0.2, 1.3))\ndirection_vec = target - cam.location\nrot_quat = direction_vec.to_track_quat('-Z', 'Y')\ncam.rotatio…)
54:17<<Code executed successfully: Camera adjusted <Vector (9.5000, -9.0000, 4.0000)>
54:21>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
54:22<<
54:22imgimage delivered — get_viewport_screenshot
54:30ai>This composition is excellent - the cabin, chimney, dock, pond, and trees are all well-framed. Let's render a final check with Cycles/Eevee to see lighting quality more accurately.
54:30>>execute_blender_code({"code":"\nimport bpy\n\nscene = bpy.context.scene\nprint(\"Render engine:\", scene.render.engine)\nprint(\"Resolution:\", scene.render.resolution_x, scene.render.resolution_y)\n","user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
54:30<<Code executed successfully: Render engine: BLENDER_EEVEE
Resolution: 1920 1080
54:36ai>The composition looks great. Let me do a final review of the full scene from a slightly different angle to make sure everything is solid, then finalize.
54:36>>execute_blender_code({"code":"\nimport bpy\n\n# Set viewport shading to rendered for best quality preview\nfor area in bpy.context.screen.areas:\n if area.type == 'VIEW_3D':\n for space in area.spaces:\n if space.type == 'VIEW_3D':\n space.shading.type = 'RENDERED'\nprint(\"done\")\n","user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few tre…)
54:36<<Code executed successfully: done
54:40>>get_viewport_screenshot({"user_prompt":"A warm wooden cabin beside a pond, with a stone chimney, a small dock, and a few trees."})
54:42<<
54:42imgimage delivered — get_viewport_screenshot
54:48ai>This looks excellent with the rendered lighting. The warm glow near the door, the cabin with log ends and stone chimney, the trees, the pond, and the dock are all clearly visible and well-composed. The scene reads beautifully as a warm wooden cabin beside a pond.
54:48--status: budget_exhausted
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