Portal:CoherencyTest

Welcome to the COLLADA CoherencyTest portal
Links to, and information about, a simple test that checks whether a COLLADA document is properly composed

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COLLADA Coherency Test is a command-line version of CoherencyTest from COLLADA Refinery. It checks whether a COLLADA dae file is coherent (properly composed). It is built using the COLLADA DOM library from http://sourceforge.net/projects/collada-dom.

It is developed in C/C++ and built using MSVC.

If you have suggestions for what should go into the coherency test, please email me at [email protected].

External links

• Forum topic on Coherency Test

List of Checks

Check_links	Checks whether all IDs are valid reference and whether we can resolveElement and getElement from a link
Check_unique_id	Checks whether all IDs in each document are unique
Check_counts	It checks that the number counts are correctly set; for example: skin vertex count should be = mesh vertex count accessor has the right count on arrays from stride and counts.
Check_files	Checks whether the image files, cg/fx files, and other non-dae files that the document reference exist
Check_textures	Checks whether the textures are correctly defined/used (image, surface, sampler, instancing...) <texture> shouldn't directly reference to <image> ID. It should reference <newparam>'s SID, and have <sampler2D> with <source> reference to another <newparam>'s SID that have <surface> with <init_from> reference to <image> ID.
Check_URI	Checks whether URIs are correct. It should also check for unescaped spaces because an XML validator won't catch the problem. Reference http://www.w3.org/TR/xmlschema-2/#anyURI
Check_schema	Checks whether the document validates against the Schema
Check_inputs	Checks whether the required number of input elements are present and that they have the correct semantic values for their sources.
Check_skin	Checks that values in name_array reference only to an existing SID, and values in IDREF_array reference only to an existing ID
Check_InstanceGeometry	Checks whether all Instance_geometry have bind_material that has a correct matching bind_material between symbol and target
Check_Controller	Checks whether skin have same number of vertices weight as the vertices number of geometry. It checks whether morph has the same number of vertices from source geometry as number of vertices in all other target geometry.
Check_Float_array	Checks whether NaN, INF, INF exist in all the float array
Check_sid	Checks whether SIDs are valid SIDs
Check_morph	Checks whether a morph has the same number of targets and target_weights. Checks whether all targets have the same number of vertices.

User guide

Usage: coherencytest filename.dae ... [OPTION]...
option:                           \n"
filename.dae		   - check collada file filename.dae, 
                            filename.dae should be a url format
-log filename.log         - log warnings and errors in filename.log          
-check SCHEMA COUNTS ..   - check SCHEMA and COUNTS only, test all 
                            if not specify any
                            available checks:              
                            SCHEMA						
                            UNIQUE_ID 					
                            COUNTS						
                            LINKS							
                            TEXTURE					
                            FILES						
                            SKIN						
                            FLOAT_ARRAY				
                            CIRCULR_REFERENCE			
                            INDEX_RANGE
                            SID
                            MORPH
-ignore SCHEMA COUNTS ..  - ignore SCHEMA and COUNTS only, test all
                            if not specify any
-quiet -q                 - disable printfs and MessageBox
-version                  - print version and copyright information
-xmlschema schema.xsd     - use your own version of schema.xsd to do schema check
                          - the defualt schema is http://www.collada.org/2005/11/COLLADASchema.xsd

Changes (for developer)

  Date       Version   Description
- 04-24-2007 1.0       Inital Version
- 04-26-2007           printf date and time when test starts
                       Add separator in log file between on differen
                       file checks
- 05-07-2007           add #ifdef and -ctf support
                       Split into header files
                       catch all daeErrorhandler errors as test fails
                       Fix Accessor CHECK_count
                       size of param should be <= stride
                       size of param + offset should be <= stride
                       size of data_array should be reference from 
                       accessor source instead of the one within the 
                       same source.
- 05-09-2007 1.1       Add make files to build in linux
- 06-11-2007           pass all collada_dom errors and warnings as
                       CoherencyTest errors and warnings
- 06-19-2007           update makefiles for linux build
- 07-09-2007           Add check_Sid if Sid contains any illegal characters
                       add Check_bind_material to check if <instance_controller>
                       has <bind_material> correctly.
                       add check if controller has skin or morph.
- 07-18-2007           add -xmlschema option to use your own schema.xsd
- 07-19-2007           remove dependency on iconv
- 07-30-2007 1.2       if inputs that should reference to source is not
                       reference to a source, report error
                       if Index_Range in CHECK_Index_Range() is 0,