This article contains the full specification for CheckMate Lite, TurboSquid's reliability standard for 3D models.
CheckMate Lite Specification
January 30, 2015
1. Limitations on CheckMate Lite Certification
1.1 Quality - CheckMate Lite Certification is reserved for well-made, quality 3D models.
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 (.lws)
- Maya (.ma, .mb)
- Softimage (.hrc, .scn)
22.214.171.124 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.
126.96.36.199 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 Signature Image Requirements: Primary image shown in Search Results page and must be rendered thumbnails that are needed in two aspect ratios and meet the following requirements:
188.8.131.52 - 1480 x 800 Cinema Wide (1 to 1.85) aspect ratio pixel resolution minimum.
184.108.40.206 - 1200 x 1200 Square (1 to 1) aspect ratio pixel resolution minimum.
220.127.116.11 - Should show only the model and no additional elements. Can include a shadow under or behind the model (not required). Any included shadows are allowed to clip the edge of the bottom and lower third of the image only.
18.104.22.168 - Shows the entire model inside image boundaries. Exceptions can be made for closeups of characters and other vertically oriented models like skyscrapers, street lights, etc.
22.214.171.124 - Must be rendered against background color RGB (247,247,247). Be sure to check your final image before posting, often JPG compression changes the RGB value to something other than 247.
126.96.36.199 - No text, borders, watermarking or overlay imagery
188.8.131.52 - Exceptions for interior/exterior architectural scenes, terrains and closeups:
184.108.40.206.1 - Model does not have to fit inside image, but can bleed off the edges.
220.127.116.11.2 - Background can be a sky or other simple, appropriate background.
18.104.22.168.3 - If sky or other background elements shown in Signature Image are not included with the product, this must be explicitly stated in Description.
3.1.2 Context Signature Image Requirements: This is the first image displayed on the main Product Page and must be a rendered thumbnail that meets these requirements:
22.214.171.124 - 1480 x 800 Cinema Wide (1 to 1.85) aspect ratio pixel resolution minimum.
126.96.36.199 - Image shows the model with exactly the same pose and composition as Signature Image but includes background/environment that is dark, realistic or best highlights the quality of the model.
188.8.131.52 - Other spec requirements for Signature Image also apply (no text, logos or borders.). Watermarks can be used only as described HERE and subject to inspector discretion. Turntables are not allowed as the Signature or Context Signature Image.
3.1.3 Product Shot Image Requirements: At least five (5) rendered images with these attributes:
184.108.40.206 - 1480 x 800 Cinema Wide (1 to 1.85) aspect ratio pixel resolution minimum.
220.127.116.11 - Set of rendered thumbnails that shows off the model’s quality and aesthetic appeal from a variety of angles.
3.1.4 Wireframe Image Requirements - At least two (2) wireframe images with the following attributes:
18.104.22.168 - 1480 x 800 Cinema Wide (1 to 1.85) aspect ratio pixel resolution minimum.
22.214.171.124 - Show all the model's topology clearly via closeups and various angles.
It is usually necessary to include at least 3-4 closeups of various parts of the geometry to fully show the topology. On a complex model, more wireframes might be required to give a potential customer the visual information they need.
126.96.36.199 - Shows wireframe from visible side of model only (not see-through)
188.8.131.52 - Wireframe color must be black, white, or gray.
184.108.40.206 - Background must be of neutral tone such that it contrasts sufficiently to show off the wireframe color applied to the model.
3.1.5 Turntable Requirements - Your Product Preview must include at least one (1) turntable with the following attributes:
220.127.116.11 - 1480 x 800 Cinema Wide (1 to 1.85) aspect ratio pixel resolution minimum.
18.104.22.168 - Rendered (not wireframe or other shading) output that shows the entire model in a static pose (no model animation).
22.214.171.124 - Exactly 36 frames long, starting at the front of the model and turning in a counter-clockwise direction. Animation should have an equal number of degrees between frames and should loop seamlessly.
126.96.36.199 - Provides an informative, quality view of the model - Must be well lit and rendered to really show the model.
188.8.131.52 - Turntable Exception for architecture - interiors can have a centrally located camera that rotates looking outward, scenes and exteriors can substitute flyovers and flybys for looping animations where appropriate.
3.1.6 Optional Images - Beyond the required imagery explained above (Signature, Context Signature, Product Shots, Wireframes, Unwrapped UVs, Turntables), you are encouraged to use your creativity to showcase your talent with additional product shots, turntables, and more. These images must adhere to image size minimums listed in the required imagery above, but may have artist annotations, logos and/or watermarks on them as well.
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
184.108.40.206 Textures must be archived with each certifiable model file.
220.127.116.11 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 turbosquid.com (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.
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