The OpenGL graphics mode of SAP2000 is being phased-out in favor of DirectX.

OpenGL Overflow Error

When opening models within previous versions of SAP2000, OpenGL may cause an Overflow Error, which may be resolved by editing the SAP2000v14.ini file such that the GraphicsMode parameter OpenGL is replaced with GDIPlus, as shown below in Figure 1. Users may then switch to OpenGL graphics mode once the model is open.

The SAP2000v14.ini file is located in the user settings folder under:

• C:\Users[UserName

We are in the process of phasing out OpenGL graphics in SAP2000 and replacing it with DirectX graphics for the next version of the program. Given that, fixing issues with OpenGL graphics in the current version of SAP2000 is being given a low priority to avoid duplication of development work. The implementation of OpenGL graphics, in its current state, has some bugs that have not been (and will not be) addressed. One error that users may encounter frequently is "Overflow Error" when a model, saved when in OpenGL mode, is opened. To resolve this error, the user can edit the SAP2000v14.ini file to change the "GraphicsMode" parameter from "OpenGL" to "GDIPlus". If desired, the user can switch to OpenGL graphics mode after opening the model.

The ini file is present in the user settings folder. Depending upon what OS the user has, the user settings folder is:

• Wiki MarkupWindows Vista 7 - C:\Users\[UserName\]\AppData\Local\Computers and Structures (for Windows 7 or Vista)

• Wiki MarkupWindows XP - C:\Documents and Settings\[User Name\]\Local Settings\Application Data\Computers and Structures (for Windows XP)

Image Modified

Figure 1 - Editing the SAP2000v14.ini file