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Marius Rieg.

CGI

CGI or Photography? The Right Technique for Product Images

By Marius Rieg · · 3 min read

Summary: CGI pays off with many variants, products that aren't yet deliverable, and recurring catalog productions. Photography remains stronger for emotion, people, and one-off pieces. In practice, professional productions combine both techniques.

One of the most common questions from marketing leads: should we photograph our products or render them? After more than fifteen years in image production – first as an advertising photographer, today as managing partner of a studio that offers both – my answer is: it's the wrong question. The right one is: what job does the image need to do?

What is CGI in image production?

CGI (Computer Generated Imagery) refers to photorealistic images created entirely on a computer. A scene is built from CAD data or 3D models, lit with digital light, and rendered. At its best, the result is indistinguishable from a photograph.

The decisive difference from photography isn't in the finished image but in the process. A photo captures something that physically exists – product, light, and set all have to be really present. CGI builds the same scene from data. Everything the photographer finds in front of them, the CGI artist has to create first: the material, the surface, the light source, the surroundings. That sounds like more effort – and for the first image, it is. The advantage only shows up from the second one on.

When CGI is superior

  • Many variants: a kitchen in twelve front colors and three countertops? Twelve builds in the studio – one click in CGI.
  • The product doesn't exist yet: catalogs are often produced before series production starts. CGI makes products visible before they exist.
  • Consistency over years: the same scene can be restocked with new products year after year – same light, same perspective, same visual language.
  • Logistics: no transport, no setup, no damage. A huge cost factor for large or heavy products.

The common denominator of these cases is repetition. As soon as a motif is needed multiple times, in variants, or over years, CGI's higher initial effort pays for itself. A 3D model, once built, is a capital asset: it can be relit, re-angled, recombined – and it's therefore also the basis for interactive product presentations, where the customer explores the product themselves in real time.

When photography is superior

  • People and emotion: as soon as hands, faces, and real use come into play, photography is faster and more credible.
  • One-off pieces and surfaces with character: natural materials, patina, handcrafted details – the effort of rebuilding them digitally often outweighs the benefit.
  • One-off motifs: for a single image with no need for variants, the modeling effort of CGI is rarely justified.

Photography also has an advantage that's rarely named: chance. An unexpected fall of light, a gesture, a moment – things nobody planned that make an image come alive. CGI is perfect because it's controlled. Photography is credible because it isn't fully controllable. For brand images meant to convey closeness and authenticity, that very imperfection is often the whole point.

Answering the cost question honestly

In consulting conversations, the discussion often comes down to the price per image – and that's exactly what misleads. CGI is almost always more expensive for a single image and almost always cheaper by the twentieth variant. The right calculation is therefore not per image but across the entire usage: how many motifs, how many variants, how long in use, how often updated? A catalog with 300 articles in changing color worlds works out differently than a single image campaign with ten hero motifs. Anyone comparing only the unit price is making the decision on the wrong metric.

The practice: hybrid

Most of our productions today are hybrid. Photographed sets get populated with rendered products, CGI scenes are enriched with photographed props, and generative AI speeds up variants and retouching. The viewer doesn't see the difference – and that's exactly the point.

This fusion isn't a compromise but the actual craft. In modern productions the interesting question is long past "photo or render" and has become "which technique where, within the same image." That both disciplines sit under one roof at our studio is no accident but the result of a long evolution from a pure photo studio to a media house.

Conclusion

CGI and photography aren't competitors, they're tools with different strengths. The decision shouldn't be ideological but based on the need for variants, product availability, emotional weight, and budget. A good studio advises with an open mind toward the technology – and masters both.