XO3D Studio · Guide

How to Review CGI Work.

What to look for at each production stage — so your feedback is useful, your revisions are purposeful, and the final output is what you actually need.

Alex Mann, Managing Director, XO3D Studio
Alex Mann Co-Founder & Managing Director, XO3D Studio

Most client feedback on CGI is either too vague ("it doesn't feel quite right") or too granular ("can we move that highlight 3% to the left"). Both create problems. Vague feedback generates multiple rounds of approximated revisions. Over-specific feedback on details that aren't visible in the final delivery wastes production time on changes that won't be seen.

This guide describes what each production stage is designed to resolve — and therefore what feedback is useful and what isn't at each stage. Getting this right protects your budget and produces better work.

Stage-by-stage review guide

What to focus on — and what to ignore — at each stage.

  1. Storyboard Review

    What it resolves
    Shot selection, narrative structure, which features of the product are shown and in what order, overall creative direction of the film.
    What to look for
    Does this shot sequence tell the right story? Are all the important product features shown? Is the order of reveals logical? Does the structure serve the film's intended purpose (launch, technical explanation, investor pitch)?
    What not to focus on
    Exact lighting, material quality, camera movement smoothness — none of these are present at storyboard stage. The storyboard is a structural document.
  2. Material Test Review

    What it resolves
    Whether the material reconstruction matches the physical product's surface behaviour under light — the specific alloy, finish, texture, and reflectance properties.
    What to look for
    Compare the render against the physical product or reference images. Does the surface behave correctly in light? Does the finish match the specification? Is the colour temperature accurate?
    What not to focus on
    Camera angle, composition, or background — these are not the subject of a material test. Focus entirely on surface quality.
  3. Animatic Review

    What it resolves
    Exact camera choreography, timing, edit rhythm, product movement sequence, and structural relationship between image and sound.
    What to look for
    Watch it at full speed three times. Does the film feel like it has the right energy? Are reveals well-timed? Is any shot too short to read? Does mechanism movement match the correct operational sequence?
    What not to focus on
    Visual quality — the animatic intentionally uses rough geometry and no lighting. Evaluating material or render quality here is evaluating the wrong thing.
  4. Final Render Review

    What it resolves
    Overall visual quality, grading, integration of all elements — camera, material, lighting, composition — into the finished piece.
    What to look for
    Does this meet the visual standard set in pre-production? Does the grade feel right? Are there any surface artefacts, rendering errors, or inconsistencies in the materials?
    How to give good feedback
    Reference specific frames by timecode (XO3D uses Frame.io for timestamped annotation). Describe what you see rather than prescribing the technical fix — "the highlight on the chassis edge feels too bright at 0:12" is better than "reduce the specular intensity by 20%".

FAQ

Common questions, answered.

How many people should be involved in reviewing CGI?
The fewer, the better — provided all key stakeholders are represented. Ideal review teams have one person responsible for creative direction, one for technical accuracy (if the product is complex), and one for brand compliance. More reviewers produces more conflicting feedback, which produces compromised output. If multiple stakeholders must be involved, consolidate feedback before submitting it to the studio.
What's the best way to submit feedback?
XO3D uses Frame.io for all video review — you annotate directly on the frame at the specific timecode, which eliminates ambiguity about which frame or element you're referring to. For still images, use annotated PDFs with clearly labelled feedback points. Written feedback should describe observations, not prescriptions where possible — "the shadow reads as too heavy on the left side" gives the studio more useful information than "make the shadow 40% lighter".

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