V-Ray Tip: V-Ray Clipper: Non-Destructive Render-Time Sections with Capping

V-Ray Clipper lets you create non-destructive section cuts at render time—perfect for clean plans, elevations, and reveal cutaways without altering your original geometry. It works interactively in IPR and on both CPU and GPU, making it ideal for quick lookdev and final production.

When to use it

• Architectural sections and plan views without duplicating scenes.
• Exploded or reveal renders for product design and mech/industrial shots.
• Technical visuals where interiors and mechanisms must stay editable.

Setup in seconds

• Create a V-Ray Clipper object (plane) for standard orthogonal sections, or switch to mesh mode to use any closed mesh as the clipping volume.
• Position and orient the clipper; animate its transform to produce progressive reveals through a model.
• Enable capping to seal cut surfaces and avoid GI/light leaks; assign a dedicated “cap” material for presentation clarity.
• Use Include/Exclude to limit which objects are affected (e.g., cut the building shell but leave furniture intact).
• Control visibility so the cut is consistent to camera, GI, and reflections/refractions for physically coherent results.

Cap material best practices

• Apply a neutral but distinctive cap material (e.g., mid-gray matte with subtle roughness) to improve legibility.
• If the cap needs texture direction, enable mapping for caps and use a triplanar or simple planar projection to avoid stretching.
• Assign a unique Material ID to the cap so you can isolate and restyle it in comp via MultiMatte/Cryptomatte.

Performance and reliability

• Prefer planar clippers for speed; use mesh clippers only when you need custom profiles or curved sections.
• Keep mesh clippers low-poly and watertight; simplify boolean volumes to avoid tiny self-intersections.
• Clipping happens at render time, after displacement and instancing, so you can section highly detailed scenes without destructive edits.
• Works well with proxies—great for massive assemblies—while keeping memory predictable.

Lookdev and compositing tips

• Leverage IPR to slide the clipper until materials, lighting, and composition read clearly.
• Pair with V-Ray LightMix to balance interior lights after opening the model.
• Output Reflection/Refraction and Material/Object ID elements to fine-tune cap color and internal highlights in post.

Cross-host notes

• Available in leading hosts (3ds Max, Maya, Rhino, SketchUp, etc.) with consistent behavior: a render-time boolean that is easy to animate and non-destructive.
• Naming and UI placement vary slightly, but core options—plane/mesh mode, capping, and include/exclude—remain the same.

Need V-Ray or upgrades? Explore options at NOVEDGE, and talk with the NOVEDGE team for licensing guidance and tailored solutions. If you’re building a section-heavy workflow, ask NOVEDGE about bundle savings and render farm add-ons.

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