An OpenGL graphics configuration template is a set of graphics preferences used to choose the best OpenGL graphics configuration (OIV.Inventor.Components.SoGLGraphicConfig) available on an OpenGL graphics device (OIV.Inventor.Components.SoGLGraphicDevice).

There are many different criteria: double/single buffer, raw stereo, OpenGL acceleration, Z-buffer depth size, RGBA/indexed colors and size, accumulation buffer and size, stencil buffer and size, etc. Every criterion is required, or forbidden, or preferred. The preferred criterion can be extended to an integer weight: OIV.Inventor.Components.SoGraphicConfigTemplate.Preferences.PREFERRED (equal to 1), 2, 3, 4, 10, 100, 1000, and so forth. The sum of all weights determines if one graphics configuration is better than another.

The default values are:

• Double buffer is REQUIRED;

• Stereo buffer is FORBIDDEN;

• Accelerated OpenGL is REQUIRED;

• Depth buffer is REQUIRED; its size is greater than 0;

• Non-indexed color is REQUIRED; its R/G/B/A sizes are greater than 0;

• Indexed color is FORBIDDEN;

• Accumulation buffer is PREFERRED (weight 1); its R/G/B/A sizes are greater than 0;

• Stencil buffer is PREFERRED(weight 1); its size is greater than 0;

• Full-scene antialiasing is FORBIDDEN.

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