BS Contact VRML - Users Guide

The Render Options Tab

The Render Options changes global rendering preferences.

Prefer OpenGL:

If enabled, the Contact OpenGL driver is used on startup for 3D rendering.

Use Intel Pentium III ISSE instructions:

If enabled (default) Pentium III/IV ISSE operations are used for some Matrix and NURBS operations.

Prefer 16 bit over 32 Bit textures:

Direct X only, if enabled instead fitting image textures into 32-Bits, the textures are reduced to 16-Bits. This might improve performance on lower-end cards.

MIP-Mapping bias:

An offset for mip-mapping, -0.5 is recommended.
If MIP-Mapping is enabled (see Direct 3D/Open GL Tab) blurred versions of the texture are displayed to early.
A negative MIP-Map bias is shifting this switching distance to the back, resulting in less blurred image.

Anisotropic filtering:

If supported by the hardware and enabled in the Graphics Drivers Advanced Display Settings, the driver chooses texture MIP-Levels depending on Anisotropy. This normally gives a much better mip-map filtering quality.

NURBS settings:

Target frame rate FPS:

Prefered target frame rate.

Tessellation Factor:

Scaling factor for scene specified tesselation density.

NURBS Tessellation Mode:

How tesselation of NURBS surfaces is computed:

Dynamic & Framerate : tesselation is choosen automatic according to Target Frame

Static : tesselation depending on scene settings scaled by Tessellation Factor.

Dynamic:

Framerate: tesselation depending on frame rate

For more information refer to the "NURBS Project" overview.