Verified View vs Photomontage vs CGI
A CGI is fully computer-generated, a photomontage combines CGI with site photography, and a verified view is a photomontage backed by survey data.
Architectural Visualisation
When is a CGI the right choice?
A CGI suits marketing and design review, where full control of light and composition matters more than survey accuracy.
When is a photomontage the right choice?
A photomontage suits public consultation, where the real site context makes a proposal easy to read.
When is a verified view the right choice?
A verified view suits planning applications that require measurable accuracy.
What makes a fully computer-generated image distinct?
A fully computer-generated image uses a modelled scene for the proposal and its visible surroundings. It offers flexibility in camera position, light and composition without relying on a single site photograph. That flexibility suits design review and marketing when the brief requires a controlled presentation. The scene still needs reliable source information for the architecture and relevant context. Computer generation alone does not establish measured accuracy. The image remains an illustration unless an agreed technical method and evidence record support its use for assessment.
What does a photographic base contribute?
A photographic base contributes the existing visible context at a particular viewpoint and moment. Nearby buildings, roads, landform and vegetation retain their photographic appearance. The proposal is rendered to match that view and then composited into it. This makes the site recognisable, but it also limits later camera and lighting changes. Poor framing or an obstructed view affects the entire composite. Keep the original photograph and agree the treatment of temporary objects. A realistic composite without documented survey information is a photomontage, not automatically a verified representation.
What extra evidence makes a representation verified?
Verification adds a documented relationship between the photograph, surveyed camera information and design model. The method establishes how the proposal is placed and presented for the agreed assessment purpose. Its accuracy depends on both the camera data and the design geometry. A detailed finish is not the defining feature. An outline or wire representation still needs the appropriate method when used as verified evidence. The project specification should identify the representation level, source records and presentation conditions rather than treating verification as a purely aesthetic upgrade.
How does the intended use determine the choice?
Intended use determines the questions the image needs to answer. Marketing imagery communicates the proposed property and its setting. Design-review imagery tests selected architectural relationships. Consultation material explains the proposal to an audience familiar with the existing site. Technical assessment imagery supports an agreed evidence standard. These uses overlap, but one image does not automatically satisfy all of them. Decide the purpose first, then agree the photography, modelling and verification requirements. This sequence prevents a promotional commission from being mistaken for technical assessment evidence.
How do the input and review requirements differ?
All three outputs need current design information, an agreed view and a material or representation brief. Photomontages also need a suitable site photograph. Verified representations add survey and methodology records as required by the agreed evidence standard. Review stages therefore differ. A marketing camera review considers composition; a technical camera check considers the documented match as well as readability. Keep geometry and material approvals separate from verification checks. A later design change affects the inserted proposal even when the photographic and survey information remains unchanged.
What should image captions explain?
Image captions explain the viewpoint, proposal scenario and representation status. State whether the image is an illustrative CGI, a photographic composite or a verified representation with an accompanying method. Identify indicative elements and the design revision where relevant. Do not use a caption to claim planning approval or measurable performance that the image itself does not establish. A clear label helps audiences interpret the scene and prevents the same image being republished with a stronger accuracy claim than the original commission supported.
What information belongs in the rendering brief?
A rendering brief records the purpose, audience, approved design information and required deliverables. Start with the decision that the images need to support: review a material palette, explain a proposal to a planning team or present a property to prospective occupiers. These purposes lead to different viewpoints and different standards of evidence. Record the project address, building use, design stage, required view count and delivery dates. Identify the person who approves the work and consolidate feedback through that person. Supply the latest plans, elevations and sections together with the revision register. A coordinated 3D model reduces interpretation, but it still requires a check against the drawings. Include a materials schedule, landscape information and references for finishes. Mark unresolved elements rather than allowing assumptions to enter the final image. Separate existing features, proposed works and future phases. For refurbishment projects, photographs of retained fabric explain conditions that drawings alone do not describe.
What does a first-draft review assess?
A first-draft review assesses geometry, composition and visibility before detailed finishing. The review establishes whether the chosen camera explains the intended subject without hiding important relationships. Check that principal elevations, room proportions, access routes and relevant neighbouring features read clearly. A neutral material or clay review keeps attention on structure and viewpoint. Approving the composition at this stage reduces the risk of rebuilding a finished scene after the camera changes. Feedback works best as one marked-up document with numbered comments. Identify the image, location of the change, intended result and source of the correction. Distinguish a modelling correction from a new design instruction. Use the same drawing revision for every reviewer. A material approval is separate from geometry approval: both need explicit sign-off. Record accepted assumptions so later rounds do not reopen decisions unintentionally. The written quotation defines the number of review rounds and the treatment of additional changes.
Which delivery details need agreement?
Delivery specifications establish image dimensions, aspect ratios, file formats and intended uses. Website images, printed brochures, exhibition boards and large-format hoardings have different requirements. Agree the largest intended print size early, because enlarging a finished low-resolution image does not recover missing detail. Keep a high-resolution master and create optimised web versions from it. Confirm whether the commission includes individual images, a coordinated campaign set or moving and interactive outputs. Usage rights, source-model ownership and third-party asset licences belong in the written agreement. A rendered image is not automatically a licence to redistribute the working scene or every asset within it. Confirm the permitted channels and any restrictions on re-use. Keep filenames and image descriptions consistent with the project and viewpoint. For publication, record which drawings and materials the final output represents, particularly when imagery continues to circulate after the architectural design changes.
Which output matches the purpose?
The output follows the decision, source information and required evidence standard.
| Output | Purpose | Inputs |
|---|---|---|
| CGI still | A fixed design or marketing viewpoint | Coordinated drawings, materials and camera brief |
| Photomontage | A proposal within a site photograph | Design information and agreed photography |
| Verified representation | Documented assessment evidence | Photography, survey references and method |
| Animation | Movement between architectural spaces | Storyboard, model coverage and output specification |
Definition: what is architectural visualisation?
Which sources explain the assessment context?
Commission this work: architectural photomontages. See architectural visualisation pricing.