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XO3D Studio · 3D Rendering

Material Rendering for Product CGI

Where a render becomes a photograph.

Materials decide whether a product render feels real or looks like CGI. This guide covers PBR fundamentals, common material types and the disciplines that separate a strong material pass from a flat one.

See our work →Discuss your project →

The surface pass that closes the last uncanny gap.

Model gives you shape. Lighting gives you form. Materials give you surface, and buyers respond to surface. Brushed steel, polished chrome, satin fabric, velvet, leather, glass, gemstone. Each behaves differently and each takes care to author correctly.

Modern production uses PBR (physically based rendering), where materials describe how surfaces interact with light in physically consistent ways. Materials travel between engines cleanly and behave correctly under any lighting rig.

What's covered

The main varieties, in detail.

Metal and hard surfaces

Brushed, polished, anodised..

Anisotropy, reflection, roughness. Every metal finish handled by physically based material parameters.

$\"Brushed,$

Painted and coated

Clearcoat and finish layers..

Automotive clearcoat, powder coat, satin plastic. Multi-layer materials with base colour plus top clearcoat.

$\"Clearcoat$

Fabrics and textiles

Boucle, velvet, leather..

Weave detail, sheen and subsurface all handled inside the material. Photoreal fabric is a discipline.

$\"Boucle,$

Glass and refractive

Clear, coloured, gemstones..

Refractive index, dispersion and absorption tuned per material.

$\"Clear,$

Organic surfaces

Wood, stone, skin..

Subsurface scatter, grain and layered detail combine for organic realism.

$\"Wood,$

Emissive and technical

Screens, LEDs, self-lit..

Emission maps and physically weighted output for accurate exposure.

$\"Screens,$

Advantages

Why brands commission it.

01
Portable across engines.
PBR materials travel between Keyshot, V-Ray, Redshift and other engines with minimal re-authoring.
02
Consistent under any lighting.
Materials behave correctly whether the scene is studio-lit, sunlit or moody. Same material, any environment.
03
Configurator-ready.
Material slots and hierarchy structured at material stage enable live web configurators.
04
Reusable library.
Tuned materials save back to a studio library, building up house consistency over time.

Trade-offs

What to plan for.

Reference photography essential.
Materials built without physical reference tend to look generic. Physical swatches or macro photography inform the strongest work.
UV unwrap unglamorous but critical.
Bad UVs limit texture quality no matter how good the material. Well-unwrapped models render better in every engine.
Layered materials add render time.
Multi-layer materials (clearcoat, subsurface) can slow render significantly.
Fabric realism takes real skill.
Boucle, velvet and leather at hero quality take material authoring craft, not just presets.

Process

How the work is produced.

1STAGE 1
Reference gathering.
Macro photography, physical swatches and reference imagery collected before authoring.
2STAGE 2
Base material choice.
Start from a PBR library material that closely matches the target.
3STAGE 3
Texture map creation.
Base colour, normal, roughness, metalness authored in Substance, Photoshop or projected from reference.
4STAGE 4
UV unwrap.
Model UVs unwrapped for texture accuracy.
5STAGE 5
Lighting test.
Material tested under multiple lighting rigs to check it reads correctly.
6STAGE 6
Library archive.
Tuned material saved back to the studio library for reuse.

Who this is for

Built for teams shipping the launch.

3D artists working in product, film or interactive contexts. Studio TDs setting up material libraries and standards.

Product design teams whose CAD feeds CGI, and want to understand what makes materials work.

Case studies

Recent work.

$\"Petalite\"$

Petalite EV charger launch, applying the disciplines in this guide.

View case study

$\"Sony\"$

$\"Sony\"$ $\"ImageNova\"$

Sony WF-C710 launch, techniques from this guide applied end-to-end.

View case study

$\"G-Lab\"$

$\"The$

G-Lab keyboard launch. One 3D build driving film, stills and interactive content.

View case study

Testimonial

“
The team at XO3D were a pleasure to work with on one of our big product launches. They rendered, batched, and saved out literally thousands of images for us. Every single one came out perfect.

For launch-critical work, XO3D’s director-led product CGI stills connect material accuracy with the brand, audience and commercial job of every frame.

For sibling topics, see understanding materials and textures, the lighting guide and product rendering.

$\"Thomas$

Written by

Thomas Howcroft

Founder | Director

Engineering-led realism · Campaign-ready visuals · Senior client partner

FAQ

Common questions, answered.

What is PBR?

Physically based rendering. A material system where surfaces are described in physically consistent terms (base colour, roughness, metalness, normal) that behave correctly under any lighting.

What texture maps do modern materials use?

Base colour, normal, roughness, metalness, height, ambient occlusion, opacity and sometimes subsurface. Modern engines use a standard set that transfers between renderers.

How do materials differ for AR?

AR uses baked PBR materials on optimised geometry. Detail from a high-poly source is preserved through normal maps rather than live geometry.

Do materials need to change per render engine?

Not much. PBR transfers between Keyshot, V-Ray, Redshift and other modern engines with minor tuning.

Related references.

$\"3D$

3D Rendering

3D File Format Guide: What to Send, What to Expect

$\"3D$

3D Rendering

3D Furniture Rendering: Uses, Process and Range Economics

$\"3D$

3D Rendering

3D Jewellery Rendering: Materials, Light and Use Cases

$\"Product$

3D Rendering

3D Product Rendering Software Guide

$\"3D$

3D Rendering

3D Rendering Buyer's Guide: How to Commission a Project

$\"3D$

3D Rendering

3D Rendering: Types, Process and Uses

Working on a project?

Tell us about it.

Thomas or Alex replies personally, usually within one working day.

Start a conversation

Material Rendering for Product CGI

The surface pass that closes the last uncanny gap.

Brushed, polished, anodised..

Clearcoat and finish layers..

Boucle, velvet, leather..

Clear, coloured, gemstones..

Wood, stone, skin..

Screens, LEDs, self-lit..

Portable across engines.

Consistent under any lighting.

Configurator-ready.

Reusable library.

Reference photography essential.

UV unwrap unglamorous but critical.

Layered materials add render time.

Fabric realism takes real skill.

Reference gathering.

Base material choice.

Texture map creation.

UV unwrap.

Lighting test.

Library archive.

3D File Format Guide: What to Send, What to Expect

3D Furniture Rendering: Uses, Process and Range Economics

3D Jewellery Rendering: Materials, Light and Use Cases

3D Product Rendering Software Guide

3D Rendering Buyer's Guide: How to Commission a Project

3D Rendering: Types, Process and Uses

Tell us about it.