CheckMate Lite Specification

This article contains the full specification for CheckMate Lite, TurboSquid’s reliability standard for 3D models. To see the condensed CheckMate Lite Checklist, you can go HERE.
v. 2.1
January 30th, 2015

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    Product pricing must conform to the CheckMate pricing matrix.

1.2.2    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) (Renderers Supported: Scanline / V-Ray / Corona / Arnold / IRay / Mental Ray)
  • Maya (.ma / .mb) (Renderers Supported: Software / Hardware / Mental Ray / V-Ray / Arnold)
  • CINEMA 4D (.c4d) (Renderers Supported: Advanced / Physical / Arnold / V-Ray)
  • Lightwave (.lws) (Renderers Supported: Default)
  • Blender (.blend) (Renderers Supported: Standard / Cycles)   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, Sets & Collections

1.4.1    Scenes are eligible for certification.

1.4.2    Collections are not eligible for certification unless all of the models within that collection have already been certified individually as CheckMate Pro or CheckMate Lite.

  • Collections that contain all CheckMate Pro models can be submitted for Pro certification.
  • Collections that contain all CheckMate Lite models can be submitted for Lite certification.
  • Collections that contain both CheckMate Lite and Pro models can be submitted for Lite 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.

  1.    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   Textures are 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. All texture paths must be stripped from model file.

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 explicitly state this.

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  The native model file must be in the same position and framing as the Signature and Context Signature images. Additional non-native file formats that are published simply need to open so the full model is visible in the viewport with no hidden parts but do not have to match pose and framing of the native file.

  1.    Standards for Product Presentation

3.1   Product Preview Images

3.1.1   Signature Image Requirements: This is the primary image shown in Search Results page and must be provided and needs to be constructed as follows:   1200 x 1200 Square (1 to 1) aspect ratio pixel resolution minimum.   Signature image should show only the model and no additional elements. You 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.   Signature image should show the entire model inside the image boundaries. Exceptions can be made for closeups of characters and other vertically oriented models like skyscrapers, street lights, etc.   Signature image must be rendered against background color RGB (247,247,247) in .PNG format. Be sure to check your final image before posting, often JPG compression changes the RGB value to something other than 247.   No text, borders, watermarking or overlay imagery is allowed on the Signature Image.   Exceptions for interior/exterior architectural scenes, terrains and closeups as follows:   Model does not have to fit inside image, but can bleed off the edges.   Background can be a sky or other simple, appropriate image.   If the sky or other background elements shown in Signature Image is 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:  Minimum resolution of 1480 x 800 (1 to 1.85 aspect ratio) is highly recommended. Image aspect ratios from 1 to 1.5 (minimum 1480 x 988 pixels) through 1 to 1.9 (minimum 1480 x 779 pixels) are acceptable for presentation imagery.   This image shows the model with exactly the same pose and composition as the Signature Image but includes background/environment that best highlights the quality of the model.   Other spec requirements for Signature Image also apply (no text, logos or borders.). Watermarks can be used only as described and subject to inspector discretion. Turntables are not allowed as the Signature or Context Signature Image.

3.1.3   Product Shot Image Requirements: A minimum of five (5) rendered images with these attributes:  Minimum resolution of 1480 x 800 (1 to 1.85 aspect ratio) is highly recommended. Image aspect ratios from 1 to 1.5 (minimum 1480 x 988 pixels) through 1 to 1.9 (minimum 1480 x 779 pixels) are acceptable for presentation imagery.   This set of rendered imagery shows off the model’s quality, detail and aesthetic appeal from a variety of angles and positions. This is where you get to show off your skill to potential customers, so spend time on these.  Non-Rigged Character Models should never include Product Shot images of poses that are not included with the model.  For other Non-Rigged Models (e.g. vehicles/appliances), showing poses for non-character, unrigged models is acceptable with the following two requirements:  An additional line included with product description “Only default Pose included. Other poses shown are possible by rotating elements as pivots are placed properly.” The model’s pivot points are placed to allow the pose by the customer without further modification.

3.1.4   Wireframe Image Requirements: A minimum of two (2) wireframe images with the following attributes:  Minimum resolution of 1480 x 800 (1 to 1.85 aspect ratio) is highly recommended. Image aspect ratios from 1 to 1.5 (minimum 1480 x 988 pixels) through 1 to 1.9 (minimum 1480 x 779 pixels) are acceptable for presentation imagery.   These images show all of 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 to make a buying decision.   Shows wireframe from visible side of model only and is not see-through.   Wireframe color must be black, white, or gray.  There must be a sufficient contrast between the background/object and wire colors to clearly display the wireframe applied to the model. It is highly recommended that the background/object uses a neutral tone, but is not required. The background and object do not have to share the same tone or color.

3.1.5   Turntable Requirements: Your Product Preview must include at least one (1) turntable with the following attributes:  Minimum resolution of 1480 x 800 (1 to 1.85 aspect ratio) is highly recommended. Image aspect ratios from 1 to 1.5 (minimum 1480 x 988 pixels) through 1 to 1.9 (minimum 1480 x 779 pixels) are acceptable for presentation imagery.   Rendered (not wireframe or other shading) output that shows the entire model in a static pose (no model animation).   Turntable is a minimum of 18 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 without slowing down.   Turntable provides an informative, quality view of the model – Must be well lit and rendered to really show the model.   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 and 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 within the publisher. The Native file represents the 3D application you originally built the model in.

3.2.3   Software version is specified for all certifiable files.

3.2.4  All required files archived with the product file in one of the following three ways:

  •  All bitmap textures are archived with each certifiable model file in a flat file structure.
  •  All bitmap textures are archived with each certifiable model file in a single subfolder beneath the main product file.
  •  All bitmap textures required are placed into a single, named ZIP file and uploaded once as a Textures Supporting Items product in the TurboSquid publisher.  Certifiable model files are each placed into their own named ZIP files and uploaded on their own. See Bitmap Texture Pathing.

3.2.5   Archives should not contain multiple renderer versions; separate download archives should be provided for different renderers, even from the same 3d application.

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 within the publisher, one of these two choices is selected:

  • 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 for 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

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

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 to the model you publish.

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 for sale 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.

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