VFX HDRI Spheres

VFX HDRI Reference Ball Set

Name: VFX HDRI Reference Ball Set
Brand: Mao Ping Sculpture

VFX HDRI reference balls made from hollow stainless steel, pressed and polished to a precise gray scale for accurate specular reflection in film and television post-production. Available in diameters of 6 cm, 12.6 cm, 20 cm, 25 cm, and 30 cm, each ball undergoes over 20 surface treatments to maintain consistent reflectivity and colour accuracy under studio lighting. The sphere is sealed and finished to match industry standards for HDR imaging and lighting reference.

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Side-by-side comparison of a matte grey sphere and a polished chrome sphere mounted on stands outdoors.

Polished chrome sphere and matte grey sphere mounted on adjustable black clamps on a horizontal bar

Chrome and matte gray spheres mounted side by side on a black pole with adjustable clamps, white background

Closed black hard plastic protective case with shoulder strap and latches

A matte gray sphere and a reflective chrome sphere with a mounting bracket resting on a cloth outdoors

Why This Piece

Key Benefits

Precise gray scale across the surface ensures accurate lighting reference in VFX and HDR rendering
Over 20 finishing processes maintain a consistent specular reflection without hotspots or distortions
Hollow construction keeps weight low for easy handling and studio setup
Available in five standard diameters to suit different camera angles and lighting setups
Mirror polished finish holds its reflective quality without fading or yellowing over time
Pre-finished and ready to use—no on-site polishing or surface treatment required

Problems It Solves

Inconsistent gray scale in DIY or low-end reference spheres leads to incorrect lighting in renders
Painted or coated surfaces degrade under studio lighting and lose reflectivity over time
Non-uniform finishes cause hotspots or dark spots that distort HDR data
Heavy or solid spheres are difficult to position and reposition during shoots
On-site polishing damages the surface and introduces scratches that ruin the reflection
Multiple suppliers offer inconsistent finishes, making it hard to match spheres across projects

Where It Goes

Application Scenarios

Lighting reference spheres in film and television post-production studios

HDR environment mapping for 3D rendering and visual effects workflows

Calibration tools for camera and lighting teams during on-set pre-visualization

Studio setups requiring consistent reflective surfaces for product or set lighting tests

VFX artists using the sphere as a real-world proxy for digital lighting simulation

Broadcast and commercial production where accurate light bounce and reflection are critical

Buyers

Who It Is For

VFX studios and digital artists needing reliable HDRI reference spheres
Film and television production teams setting up lighting rigs on set
Camera and lighting departments requiring calibrated reflective tools
Post-production houses integrating HDR environments into visual effects
Product photography studios using the sphere for lighting simulation
University film programs teaching lighting and digital compositing

Technical Features

Hollow stainless steel construction with seam welded and ground to an invisible joint
Over 20 surface treatment steps to achieve a uniform gray scale and specular reflection
Diameters available in 6 cm, 12.6 cm, 20 cm, 25 cm, and 30 cm for studio flexibility
Mirror polished finish with no visible seams or surface imperfections
Sealed and fully closed sphere to prevent dust or moisture ingress
Pre-finished and ready for immediate use in studio or on set

Data

Specifications and Materials

Specifications for VFX HDRI Reference Ball Set
Material	Hollow stainless steel
Diameter Range	6 cm, 12.6 cm, 20 cm, 25 cm, 30 cm
Forming Method	Stamping press formed hemispheres, seam welded
Surface Finish	Mirror polished, over 20 processes for gray scale accuracy
Standard Use	VFX HDRI reference, lighting calibration
Lead Time	20 to 30 days after deposit received
Packing	Soft foam plastic inside, strong wooden or iron case outside
Place of Origin	Shenzhen, China

Materials

Hollow stainless steel, selected for durability and consistent reflective surface
No painted or coated surface—reflectivity comes from the polished metal finish

Customization

Any of the standard diameters can be ordered in bulk for large studio projects
Custom gray scale or finish adjustments possible on request for specific lighting needs
Multiple spheres in different sizes can be batched to match a single polish run
Optional mounting base or stand available for studio use

Manufacturing Process

How It Is Made

Step 1Sheet cut and blanked to diameter and thickness for the order
Step 2Hemispheres stamped on a press, then fitted and seam welded
Step 3Weld ground and blended until the joint is invisible in reflection
Step 4Over 20 surface treatments applied to achieve accurate gray scale and specular reflection
Step 5Final mirror polish through progressive grits to eliminate any surface variation
Step 6Protective film applied, foam wrapped, and packed in a strong wooden or iron case

Before It Ships

Quality Control and Use

Quality Control

Seam checked under reflected light to ensure no flat spots or weld marks
Gray scale verified using calibrated lighting and camera setup
Surface uniformity tested under studio lighting to detect hotspots or dark spots
Finished spheres kept under protective film until packed
Photographs of the finished batch sent for approval before balance is invoiced

Use Guide

Use the sphere in a controlled lighting environment to avoid glare or overexposure
Keep the protective film on until the sphere is placed in the final setup
Clean with a soft cloth and water only—never use abrasive cleaners or wire brushes
Avoid touching the surface with bare hands to prevent fingerprints and oil residue
Store in a dry, dust-free environment when not in use
For studio use, position the sphere at the same height and angle as the camera lens

Comparison

Compared With The Alternatives

Alternative	How this product compares
Painted or coated reference spheres	No peeling, fading or yellowing over time; real metal reflectivity without surface degradation
Plastic or resin HDRI balls	More durable and consistent reflectivity under studio lights; no warping or cracking
DIY or hand-made spheres	Consistent gray scale and finish across all units; no variation between samples
Solid steel spheres	Lighter weight for easier handling and setup, but not load bearing

Also Consider

Guides That Help You Specify This

How to Choose Wall Thickness for a Stainless Steel Sphere

What 1 mm, 2 mm and 6 mm walls actually change, and why thickness is a handling decision more than a strength one.

Mirror Polishing Explained for Stainless Steel Sculpture

Why the quality of a mirror finish is decided during welding and fixing, long before the piece reaches the polishing shop.

Colour Finishes on Stainless Steel Electroplating and Candy Coating

The three ways we put colour on stainless steel, what each one does to the reflection, and how to specify a colour that will actually match.

FAQ

Questions About VFX HDRI Reference Ball Set

What diameters are available?

6 cm, 12.6 cm, 20 cm, 25 cm, and 30 cm.

How long does delivery take?

20 to 30 days after the deposit is received.

Can I get a custom gray scale?

Yes, custom gray scale adjustments are possible on request for specific lighting needs.

Are the spheres ready to use out of the box?

Yes, they are fully polished, sealed, and ready for immediate use in studio or on set.

How are they packed for shipping?

Soft foam plastic inside, strong wooden or iron case outside. No loose packing.

What payment terms do you use?

T/T with 50% deposit and 50% balance before shipping. Photographs of the finished batch are sent before the balance is invoiced.

Get a Price on VFX HDRI Reference Ball Set

Send the size, finish and fixing you need and we will come back with a price and a lead time for VFX HDRI Reference Ball Set.

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