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CheckMate Lite Specification

posted this on June 16, 2011, 11:54

This article contains the full specification for CheckMate Lite, TurboSquid's reliability standard for 3D models.

CheckMate Lite Specification

July 20, 2012

1. Limitations on CheckMate Lite Certification

1.1    Quality - CheckMate Lite Certification is reserved for well-made, quality 3D models. 

1.2    Pricing

1.2.1    $19 minimum price

1.2.2    Product pricing must conform to CheckMate pricing tiers.

1.2.3    Product pricing must be equal to or above the average selling price of comparable models.  TurboSquid reserves the right to make changes to prices as necessary.

1.3    File Formats

1.3.1    Native file format must pass inspection before other file formats are inspected.

1.3.2    File formats eligible for inspection are:

 - 3ds Max (.max)
 - Cinema 4D (.c4d)
 - LightWave (.lwo, .lws)
 - Maya (.ma, .mb)
 - Softimage (.hrc, .scn)   Product must include at least one of the above file formats as its native file format in order to be considered for CheckMate Lite certification.   Other file formats are not inspected for CheckMate Lite certification.

1.3.3    Certification by product - CheckMate Lite certification is awarded on a per-product basis. In order for the product to be certified as CheckMate Lite, all certifiable formats listed in 1.3.2 must pass the CheckMate Lite standard.

1.4    Scenes and Collections

1.4.1    Scenes are eligible for certification.

1.4.2    Collections are not eligible for certification.

1.5    Standard or Editorial License Only - Models with Custom Licenses are not eligible for certification.

1.6    SquidGuild Only - CheckMate Lite Certification is available only for 3D models published by SquidGuild members.

1.7    Payment Information - In order to have 3D models CheckMate Certified, the publishing member must fill out accurate and up-to-date Payment Information for the TurboSquid account.

2. Standards for 3D Model Inspection

2.1     Textures and Materials

2.1.1    No errors on opening - Model file must open without texture-related errors (missing textures, corrupt textures, etc.)

2.1.2    Texture correct in renderings - When model is rendered, texture placement must match thumbnails with reasonable accuracy. This is a subjective standard designed to ensure the model's UV mapping is as advertised, and that the customer will get what he/she expects.

2.1.3   At least one material must be applied to each object to represent real-world object surfaces. The customer should be able to render the model upon purchase and get quality surface representation. 

2.1.4    No texture paths referenced by model. Any texture paths must be stripped from model file. See Texture References.

2.2    Model is error-free

2.2.1    No errors on opening - When model is loaded in native application, no errors about missing files, plug-ins, or textures. If a third-party renderer or plug-in is required and not listed in the product information fields, then the Description must say so. 

2.2.2    No corrupt files - Model, textures, and any other files included in the product must open cleanly.

2.2.3    The model is a reasonable representation of what is shown in thumbnails.

2.2.4 Model must be in the same position and framing as the signature and secondary image

3.    Standards for Product Preview

3.1     Preview Images

3.1.1    Rendered Preview Images Requirements - At least five (5) rendered images with these attributes:    600 x 600 resolution minimum. (Only four (4) rendered images will be visible on the product page after certification, the one signature image will only display in the search results).    Set of rendered thumbnails show the model from a variety of angles    Turntables are not required for CheckMate Lite, but if turntables are submitted they should conform to the turntables standards for CheckMate Pro, with the exception that the turntables can be 600 x 600 (the Pro resolution is not required).

3.1.2    Signature Image Requirements - Image for Search results, set up in Publisher    600 x 600 resolution minimum    Square resolution - If image resolution is above 600x600, the resolution must be 1200x1200, 1600x1600, or other square resolution.    No text, borders, or overlay imagery. No watermarking permitted.    Shows only the model and no additional elements. Can include a shadow under or behind the model.  Shadows are allowed to clip the edge of the bottom and lower third of the image only.    Shows the entire model. Exceptions can be made for closeups of characters and other models, at inspector discretion.    Rendered against background color RGB (247,247,247). Be sure to check your image, often JPG compression changes the RGB value to something other than 247.    Entire rendered model inside image boundaries    Exceptions for interior/exterior architectural scenes, terrains and closeups:    Model does not have to fit inside image, but can bleed off the edges.    Background can be a sky or other simple, appropriate background.  If sky or other background elements shown in Signature Image are not included with the product, this must be explicitly stated in Description.

3.1.3    Second Rendered Preview Image Requirements - The second thumbnail in Publisher (just after Signature Image) must be a rendered thumbnail that meets these requirements:    Image shows the model with exactly the same pose and angle as Signature Image. Other spec requirements for signature image also apply (square, no text, logos or  borders). Turntables are not allowed as the signature or second image. Watermarking permitted on second image.    Image includes background/environment that is dark, realistic or best highlights the quality of the model (inspector discretion).

3.1.4    Wireframe Image Requirements - At least two (2) wireframe images with these attributes:    600 x 600 resolution minimum    Square resolution - If image resolution is above 600x600, the resolution must be 1200x1200, 1600x1600, or other square resolution.   Set of wireframes that show only the model from different angles and/or closeups. The full set of wireframes must show all the model's topology clearly via closeups and various angles.    Shows wireframe from visible side of model only (not see-through)    Subdivision wireframes must show actual render iterations without the use of Isoline Display

3.2     Main Product Files

3.2.1    Includes at least one certifiable file format (See 1.3 File Formats)

3.2.2    Native file format specified

3.2.3    Software version is specified for all certifiable files

3.2.4    All required files archived with product file   Textures must be archived with each certifiable model file.   Each archive must be a flat file structure with no folders or subfolders. See Texture References.

3.2.5    Archives should not contain multiple renderer versions; separate downloads should be provided for different renderers.

3.3    3D Model Specifications

3.3.1    Polygon Count value matches poly count in native file format - If you've applied subdivision to the native file format which is removable (as with a TurboSmooth modifier in 3ds Max or an editable history in Maya) you must enter the polygon count without subdivision.

3.3.2    Vertex Count value matches vertex count in native file format before subdivision,

3.3.3    In the Geometry field, the only acceptable options for CheckMate Lite are:

      • Polygonal Quads/Tris
      • Polygonal Quads only
      • Polygonal Tris only
      • Polygonal Ngons

3.3.4    All product specification fields are accurate with respect to model being submitted to certification.

3.3.5    If the product specification field shows the model to be rigged and/or animated, the rig and animation must work as expected. Rigged files include a readme, except if Biped or CAT is used.

3.4     Product Name Requirements  See Product Names for more info

3.4.1    Product Name must be in English

3.4.2    Product Name must be composed of adjectives and nouns pertaining to the model, separated by spaces or underscores

3.4.3    Product name must not contain file extensions

3.4.4    All words in the Product Name except articles, conjunctions and prepositions must have initial capital letter.  Words that represent acronyms can be all caps, but product Name should not be all caps.

3.5    Description Requirements - See Product Descriptions for more info

3.5.1    Description is filled in. All descriptions should use proper grammar, punctuation, spelling, capitalization, and correct product names. Descriptions can include information about the model (examples: are cameras and lights included, number of objects in scene, subdivision information).  Optional information can include information about the object the model represents.

3.5.2    Third-party plug-ins or renderers used or referenced in model specified - If the renderer in the model file is set to a non-default renderer, or if materials are those from a non-default renderer, state this in Description.

3.6    Category and Keywords

3.6.1    Must be relevant

3.6.2    Only one category is required

3.6.3    Keywords must be spelled correctly

3.7    No Personal Contact Information - This is a requirement for all products published at TurboSquid.


The CheckMate Specifications, CheckMate names, including “CheckMate Pro” and “CheckMate Lite,” and all related branding and logos, whether registered or not, are the property of TurboSquid. TurboSquid retains all ownership of these trademarks and copyrighted material. They are protected by intellectual property laws of the U.S. or in some instances, foreign laws and international treaties. Unauthorized use may violate copyright, trademark and other laws.

CheckMate Specifications may be reused and republished by third parties with permission, with the exception of third parties that sell or distribute 3D content as part of a stock 3D business. In no case may models distributed or sold anywhere other than at (or its affiliates including the SquidGuild Network) be referred to as "CheckMate," "CheckMate Certified," "CheckMate Pro," "CheckMate Lite" or any by similar name referencing CheckMate.

Participants in the CheckMate program who have received certification and would like to use CheckMate branding to promote their own models may do so on other sites, so long as such models are not sold on those other sites.

For any questions or to request permission to republish CheckMate Specifications, please contact

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