The Things You Notice Without Knowing Why

Have you ever walked through a gallery and found one painting stops you in your tracks? Or scrolled through LinkedIn and paused on one image while everything else blurs past?

That pause is rarely accidental.

Composition, light, viewpoint, scale, human activity - all of it affects whether an image holds attention or quietly fails to convince.

Most developers and architects review CGIs instinctively. Something feels right, or it doesn’t. Something reads as convincing, or it seems slightly flat, slightly wrong, slightly off - but it isn’t always obvious why.

A CGI rarely fails because of one big mistake.

More often, it fails because of several small decisions that were almost right.

Understanding those decisions helps you have a better conversation with your visualisation partner before the work starts, rather than trying to diagnose the problem afterwards.

The Camera

The camera is doing more work than most people realise.

Keeping vertical lines vertical is a basic principle of architectural photography and CGI. Tilt the camera up and verticals converge - the building appears to lean backwards, the top narrows, and the whole composition can start to feel unstable.

The usual correction is to keep the camera level.

But that can be overcorrected.

A strictly level camera aimed at a tall building does not automatically produce a better image. Sometimes the top of the building looms heavily over the viewer, because changing the camera angle without reconsidering the viewpoint does not really solve the problem. It just changes the character of it.

Often, raising the viewpoint - sometimes to around a third of the building’s height - gives the composition a more natural balance.

Alternatively, the better answer may be not to show the full height at all. A considered view of the lower two-thirds of a building is often more interesting and more readable than a strained attempt to get everything into frame.

Lens choice matters too.

The temptation with a large building is to reach for the widest available lens. But ultra-wide lenses - 14mm, 16mm - can make objects recede too quickly, which often works against conveying scale rather than in its favour.

They also distort anything near the edge of frame. A circular column becomes oval. A parked car becomes something noticeably strange. The viewer might not know what is wrong, but they will feel that something is.

A longer lens, with the camera positioned further back, typically produces a more honest and more convincing result.

Camera height is another small decision with a large effect.

At true eye level, the ground plane often compresses into a narrow strip. Raise the camera a few metres and the space opens up: a courtyard becomes legible, a landscaped approach reads properly, a service yard can be understood as an operational space rather than a thin band of tarmac between viewer and building.

The balance is not to go so high that the image becomes an aerial view by accident. Drone photography is a separate and often very effective tool in its own right.

But a small lift in camera height can completely change what the viewer understands.

The Light

Good exterior lighting is how a building reads as three-dimensional rather than flat.

One elevation in shadow, with the adjacent facade in full sunshine, creates the contrast that makes form legible. When every surface is lit evenly, the eye has less to work with and the building can become harder to read.

Sometimes it is even worth putting the main elevation into shadow rather than full sun.

That may sound counterintuitive, but it can produce a more interesting image. Reflections in the glazing pick up bright surfaces beyond. Materials show more depth. The building starts to feel like it exists in a real environment rather than under a generic lighting setup.

For interiors, the instinct is often to show sunlight streaming dramatically through the windows.

Sometimes that works.

But just as often, it creates a busy, competing composition where the light becomes the subject rather than the space. Dramatic diagonal shadows across floors and walls can look impressive, but they can also make the room harder to understand.

Softer, more diffuse light often does the job better. It lets the viewer read the space, the proportions, the materials and the atmosphere without fighting the image.

And where the interior needs to be visible through glazing - a retail frontage, a reception, a fit-out that is part of the proposition - dusk or dawn renders can be worth considering.

At twilight, interior and exterior lighting are closer in balance. In full daylight, the brightness and reflectivity of the glass often win, and whatever is happening inside becomes secondary.

The People

People are often treated as finishing touches.

They are not.

Scale is the obvious issue. Figures that are slightly too tall can make a building look small and domestic. Figures that are too small can make the whole scene feel oddly disconnected.

But scale is only part of it.

The type of person matters as much as their height.

The figures who belong outside a logistics facility are not the same as those who belong outside a city centre retail unit, a school, an office entrance or a residential development.

Clothes, posture, pace, activity - all of it contributes to whether a scene feels inhabited or staged.

People placed without purpose create a particular kind of unease. Someone drifting across a service yard. A group standing near an entrance for no clear reason. A person looking in the wrong direction, doing nothing, belonging nowhere.

The viewer may not consciously identify the problem.

But they will feel it.

People need to look like they are doing something, and like they belong where they are.

This is not decoration. The human element in a CGI is part of the story the image is telling. Get it right and it confirms everything else. Get it wrong and it quietly undermines the whole thing.

The Purpose

None of these decisions exists in isolation.

The right camera, light and people depend on what the image is for.

A planning image, a leasing image and an investor image may all show the same scheme, but they should not necessarily use the same visual language.

A planning view may need restraint and accuracy. A marketing image may need atmosphere and aspiration. A tenant-focused image may need to explain operation, access, layout or fit-out.

That is why the question is not simply: does this image look good?

The better question is: does this image do the job it was commissioned to do?

Most of these decisions are made in the setup and briefing - before a single render is produced.

The point is not that clients need to direct the camera, choose the lens or place every figure.

The point is that these decisions shape whether the image convinces.

And the best time to talk about them is before the render begins.

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