A strong brief reduces interpretation. Dimensions, photos, intended use, favourite materials and atmosphere references support accurate images.
An accurate image starts with an accurate question: what decision should the render help someone make? The goal might be to assess a layout, present finishes or communicate an atmosphere before a space exists.
Dimensioned plans, ceiling heights, photographs, approximate orientation, expected uses and visual references all improve the first concept. If dimensions are missing, the work can remain conceptual with that limitation stated explicitly.
Separate requirements from preferences. Preserving three existing windows may be a non-negotiable constraint; choosing a travertine table may be a preference. The difference makes revision rounds more efficient.
Agree on the number of views, output resolution, usage rights, revision rounds and target date before work starts. A clear brief creates an assessable scope and more useful expectations.