Depending on the objects in your display window and what kind of graphics hardware and software you are using, you may want to modify some of the rendering parameters listed below. All are listed under the
Rendering heading in the
Display Options panel (Figure
After making a change to any of these rendering parameters, click the
Apply button to re-render the scene in the active graphics window with the new attributes. To see the effect of the new attributes on another graphics window, you must redisplay it or make it the active window (see Section
28.2.2) and click
By default, all lines drawn in the display have a thickness of 1 pixel. If you want to increase the thickness of the lines, increase the value of
Point Symbol: By default, nodes displayed on surfaces and data points on line or rake surfaces are represented in the display by a
+ sign inside a circle. If you want to modify this representation (e.g., to make the nodes easier to see), you can select a different symbol in the
Point Symbol drop-down list.
When you use the mouse to modify the view in the display, a wireframe representation
will be displayed for all geometry during the mouse manipulation
. If your computer has a graphics accelerator, you may want to disable this feature by turning off the
Wireframe Animation option. Turning this option off when your computer does not have a graphics accelerator may make mouse manipulation very slow.
Double Buffering: Enabling the
Double Buffering option can dramatically reduce screen flicker during graphics updates. Note, however, that if your display hardware does not support double buffering and you turn this option on, double buffering will be done in software. Software double buffering uses extra memory.
Outer Face Culling:
This option allows you to turn off the display of outer faces in wall zones.
Outer Face Culling is useful for displaying both sides of a slit wall. By default, when you display a slit wall, one side will "bleed'' through to the other. When you turn on the
Outer Face Culling option, the display of a slit wall will show each side distinctly as you rotate the display. This option can also be useful for displaying two-sided walls (i.e., walls with fluid or solid cells on both sides).
Hidden Line Removal:
If you do not use hidden line removal,
FLUENT will not try to determine which lines in the display are behind others; it will display all of them, and a cluttered display will result for most 3D grid displays. For most 3D problems, therefore, you should turn on the
Hidden Line Removal option. You should turn this option off (for optimal performance) if you are working with a 2D problem or with geometries that do not overlap.
Hidden Surface Removal:
If you do not use hidden surface removal,
FLUENT will not try to determine which surfaces in the display are behind others; it will display all of them, and a cluttered display will result for most 3D grid displays. For most 3D problems, therefore, you should turn on the
Hidden Surface Removal option. You should turn this option off (for optimal performance) if you are working with a 2D problem or with geometries that do not overlap.
You can choose one of the following methods for performing hidden surface removal in the
Hidden Surface Method drop-down list. These options vary in speed and quality, depending on the device you are using.
is the fastest method if your hardware supports it. The accuracy and speed of this method is hardware-dependent. Note that if this method is not available on your computer, selecting it will cause the
Software Z-buffer method to be used.
will show fewer edge-aliasing effects than
Hardware-Z-buffer. This method is often used instead of
Software-Z-buffer when memory is limited.
is the fastest of the accurate software methods available (especially for complex scenes), but it is memory-intensive.
is a fast software method, but it is not as accurate as
Graphics Device Information
If you need to know which graphics driver you are using and what graphics hardware it recognizes, you can click the
Info button in the
Display Options panel. The graphics device information will be printed in the text (console) window.