At the project initiation stage, material must be treated as the primary service object of lighting.
The core task of a TVC commercial is to present a credible texture of the product material in the frame. If only creative concepts are discussed at project initiation and material characteristics are not written into the technical plan, post-production often has to rely on color grading for remediation. However, once details such as metal reflection, glass refraction, and fabric texture are lost during the shooting stage, they are difficult to restore in post-production. At the project initiation meeting, the brand should require the production team to provide a material lighting analysis sheet, listing the product's main materials, surface treatment methods, reflection characteristics, light transmittance, light absorption degree, and the lighting strategy corresponding to each material. This sheet must be specific to a certain part of the product; for example, a brushed metal surface requires a linear light source to strengthen the texture direction, matte plastic requires large-area soft light to avoid harsh highlights, and transparent liquid requires backlighting plus a black flag to create a sense of transparency. The judgment standard is whether this sheet can allow a lighting technician who has never touched the product to directly start setting up the lighting. If the production team can only give general statements like "use a softbox to illuminate," it indicates insufficient material research, and project risk has already emerged.
Breaking down material properties is the first step in a lighting plan.
The premise of lighting serving materials is to break down materials into physical parameters that can be controlled by light. The brand needs to provide the actual product or a high-precision sample. The production team should use flashlights and reflectors for quick tests to observe the product's reaction to light sources at different angles. During testing, three dimensions must be recorded: first, the surface reflection type (specular, diffuse, or mixed); second, the surface texture direction (brushed, frosted, or polished finishes will change the highlight shape); third, the material's light transmittance (translucent materials require backlighting to reveal internal structure). Take metallic materials as an example: brushed aluminum will produce harsh, strip-like reflections under a single hard light. In this case, the light source needs to be moved further away and diffusion paper added to turn the highlight into a continuous, gradient strip. Glass materials require double rim lighting: one to outline the outer edge, and another to pass through the interior to form refraction spots. After testing, the production team must output a material lighting reference image, annotating the lighting intent for each part using standard terminology, such as "Key light angle 45 degrees, height 1.5 meters, softbox with grid, used to express the vertical texture of brushed metal." This reference image is the basis for all lighting adjustments on set, and the standard for the brand to judge whether the lighting meets requirements during acceptance.
During shooting execution, lighting must coordinate with camera movement and shot framing.
TVC commercials often contain various shots such as product close-ups, rotating displays, and usage scenarios; lighting cannot use one setup throughout. Before shooting, list the required lighting state for each shot based on the storyboard, including light source position, intensity, color temperature, lighting ratio, and whether diffusion or reflectors are used. Close-up shots must focus on controlling highlight shapes to avoid messy reflections on the product surface; for instance, the studio's white ceiling, black light stands, or staff clothing could reflect onto the product. The solution is to use black flags and black velvet to block environmental reflections, or use a polarizer to eliminate some glare. Rotating display shots require stable lighting, but highlights will move as the product turns; here, pre-design the highlight trajectory so the highlight forms a continuous flowing effect on the product surface, rather than suddenly jumping. Usage scenario shots must balance the product material and scene atmosphere; for example, for a metal product in a warm home environment, lighting should retain the cold, hard texture of the metal while using ambient light to create a warm tone, keeping the lighting ratio within a reasonable range to avoid the product being too bright or too dark. During execution, the gaffer must review playback after every shot to confirm that material details are not lost due to lighting angle changes, such as whether brushed textures are clear, glass edges show dead black, or fabric folds have distinct layers.
Post-production color grading cannot replace shooting lighting, but it can enhance material layers.
Post-production color grading can adjust overall tone, contrast, and local brightness, but cannot generate material details absent during shooting. For instance, if the brushed texture on a metal surface is flattened by harsh light during shooting, no amount of contrast adjustment in post can restore the texture direction. Therefore, the first thing the post-production team should do is check whether the material highlights in the footage retain enough information; highlight areas cannot be completely overexposed, and dark areas cannot be completely crushed, otherwise noise and color banding will appear during grading. The grading process should create separate layers for materials; for example, use a qualifier to select the product area and fine-tune the hue and saturation of highlights so the metal reflection leans cool or warm, without changing the material's inherent color. For glass materials, preserve the edge refraction light; avoid reducing highlight brightness excessively during grading, or the glass will become cloudy. For fabric materials, enhance texture contrast, but be careful not to produce moire. Before delivery, the post-production team must output before-and-after grading comparison screenshots, annotating the adjustment parameters and effects for each material area, so the brand can judge whether the grading serves the material presentation. If the material looks like plastic or CGI rendering after grading, it indicates a problem with lighting or grading, requiring a review.
The acceptance checklist must cover every aspect of material presentation.
When accepting the TVC commercial, the brand cannot just look at whether the final film looks good; they must check item by item against the material lighting analysis table determined earlier. The acceptance checklist includes at least the following items: first, whether the product material is realistic (does metal look like metal, glass like glass, fabric like fabric); second, whether the highlight shape meets expectations (is the brushed texture clear, is the polished surface clean, is the frosted surface uniform); third, whether dark details are retained (is the product outline clear, do edges show dead black or gray haze); fourth, whether color reproduction is accurate (does the product's inherent color shift, especially for white and gray products, check if neutral colors are accurate); fifth, whether material presentation is consistent during shot transitions (are highlight positions and brightness coherent for the same product across different shots); sixth, whether post-production grading is excessive (does the material show a plastic or cartoon feel). During acceptance, prepare the original product or a high-precision color card to compare the final film's colors on a standard monitor. If material presentation is found below standard, clarify whether it is a lighting or post-production issue; lighting issues may require reshoots, post-production issues can be attempted to be fixed, but the repair range is limited. Acceptance records should be scored item by item; each pass or fail must have screenshots and explanations as a basis for revisions.
Situations where lighting serving materials does not apply must be identified in advance.
Not all TVC commercials require detailed material lighting. Some projects pursue fast output or low cost, such as social media short videos, where the product only appears in a corner of the frame and material details are not the focus; over-investing in lighting here wastes budget. Other projects use on-location shooting, such as products outdoors or in real environments, where natural light cannot be fully controlled and material presentation may be affected by weather; here, prepare reflectors or artificial fill light in advance, but the effect is less controllable than in a studio. Additionally, if the product material itself has defects, such as sink marks on injection-molded parts or scratches on metal surfaces, no matter how refined the lighting is, it cannot hide them; product treatment or post-production retouching is needed before shooting. The brand must judge the priority of lighting serving materials at project initiation; if the core selling point is product function or usage scenario, material presentation can be compromised appropriately, but for high-end beauty, jewelry, automotive, or electronic products, material texture is the communication focus, and lighting must be a core budget item. The production team should also state in the proposal which material presentations cannot be achieved through lighting, such as bubbles inside transparent materials or fingerprints on metal surfaces; these require product treatment or post-production retouching to avoid later disputes.
The next step recommended is to establish a material lighting testing mechanism.
Before the official shoot, schedule a half-day to full-day material and lighting test. Use the final product or samples of the same material, light according to the typical shots in the storyboard, shoot test footage, and output a test report. The test report should include a comparison of material performance under different lighting schemes, as well as recommended and alternative options. The brand participates in the test review and confirms that the material performance meets expectations before entering the official shoot. This testing mechanism can identify most lighting issues in advance, reducing rework and post-production repair costs during the official shoot. On the day of the test, record lighting parameters, equipment lists, and on-site photos as a reference for the official shoot. If the test reveals that the material performance cannot meet expectations, adjust the plan immediately, such as changing the light source type, adding fill light, or modifying the product's surface treatment. Do not skip the test and go directly into the shoot, especially when the product material is complex or the project budget is high; testing is the most effective means of risk control. The cost of testing is far lower than the cost of reshoots; this standard applies to all TVC commercial projects.
If you are preparing a TVC commercial project, you can first organize the brief, reference images, product or company materials, delivery platforms, and copyright scope, then viewTVC commercial service pageto move the conversation from abstract preferences to executable production boundaries.
