Here is a non-exhaustive list of the most Frequently Asked Questions about materials.
|How to display materials applied onto objects?|
|How to improve the material display?|
|How to prevent the texture image from disappearing?|
|How to apply materials from a user-defined catalog?|
|How to visualize cgr files correctly?|
|How to save a catalog opened in read-only mode?|
|How to modify the default environment image on reflective materials?|
|How to repair broken links to materials?|
|How to find the material textures?|
|How to find the catalog a material is originated from?|
|Where is stored the material applied onto a product?|
|How to convert .isl files to .fx files?|
|Why are the rendering material properties grayed out in the Properties dialog box?|
|Select View > Render Style > Customize View command then select the Material check box or click Shading with Material in the View Toolbar.|
|Sometimes, the material you applied onto an object may
look dull or without any relief.
|When increasing the material reflectivity, the texture
image is no longer displayed.
Standard OpenGL technology cannot visualize
a texture image and a reflection image simultaneously on the same material.
As a consequence, if the material reflectivity is set to a value lower than
0.2, the texture image is preferably displayed. Inversely, if the material
reflectivity is higher than 0.2, then the reflection image is preferably
|Select Tools > Options > Infrastructure > Material Library then in the Material tab, indicate the path of the user-defined catalog you want to use in the Default Material Catalog Path box. This catalog will then open by default when clicking Apply Material .|
|.cgr files included in .CATPart documents
onto which materials have been applied from a user-defined catalog may not
be correctly displayed after the modification of this catalog.
The .cgr files have to be regenerated because they are not updated. To do so:
|When trying to save a material catalog, a message informs
you that the catalog is in read-only mode and cannot be saved.
By default, any material catalog you open in your Version 5 session opens in read-only mode for performance reasons.
To avoid loading a catalog in read-only mode and thus, be able to save it, select Tools > Options > Infrastructure > Material Library then in the Material tab, select the Applying a material opens the catalog in read/write mode check box.
|Select Tools > Options > Infrastructure > Material
Library then in the Material tab:
Note that you do not need to restart a Version 5 session to take the new environment image into account.
|When opening a model onto which materials have been applied from a
user-defined catalog, the materials cannot be found and thus, the links to
these materials are broken.
To correct this:
|Sometimes, textures used by materials saved in a material
catalog or in a CATPart or a CATProduct are not found by the application.
To correct this:
|When applying a material as a linked
object in a CATPart or a CATProduct, you may want to find the catalog in
which this material is included.
To do so, select Edit > Links to display the list of links between documents. As this list shows the entire path of each link, it will be easy to identify the name and location of the catalog containing the linked material.
|When working with several levels of
products in the same document, you may sometimes wonder where the material
applied onto a product is stored: the material is stored in the document of
the root product.
Let's take the following example:
|Three different materials are applied
onto three different elements:
Once the document has been saved, if you reopen each element individually (either using File > Open or the xxx object > Open in New Window contextual command), the result is as follows:
|Version 5 lets you apply different kinds
of advanced materials, such as OpenGL and CgFX materials. Parameters
defining OpenGL materials are stored in .isl files whereas parameters
defining CgFX materials are stored in .fx files.
When needed, you have
the ability to convert .isl files into .fx files. This conversion is
performed manually, i.e. you have to copy the necessary information from
the .isl file then insert them at the required location in the .fx file.
|The four steps to carry out are detailed
|Your .isl file is now migrated in .fx format!|
In certain cases, the rendering material properties of a material contained
in a Material library are not editable.
Depending on the rights' access on the .CATMaterial document and the setting specified in the Tools > Options > Infrastructure > Material Library, (Open the catalog in the read-write mode when applying a material check box), the properties are accessible or not accessible: