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Diffstat (limited to 'doc/src/10-best-practices/tilt-shift-effect.qdoc')
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1 files changed, 51 insertions, 18 deletions
diff --git a/doc/src/10-best-practices/tilt-shift-effect.qdoc b/doc/src/10-best-practices/tilt-shift-effect.qdoc index d2c43fb7..ab0c748a 100644 --- a/doc/src/10-best-practices/tilt-shift-effect.qdoc +++ b/doc/src/10-best-practices/tilt-shift-effect.qdoc @@ -32,27 +32,60 @@ \page tilt-shift-effect.html \ingroup qt3dstudio-best-practices -\section1 Using Tilt Shift +The tilt shift effect simulates depth of field in a simple and performant manner. +Instead of blurring based on the depth buffer, it blurs everything except for a horizontal +or vertical stripe on the layer. \image Effects-TiltShift.png -The \"Tilt Shift\" effect simulates depth of field in a much simpler -(and more performant) manner. Instead of blurring based on the depth -buffer, it simply blurs everything except for horizontal stripe on the -layer. The effect is controlled by the properties: - -\list -\li - \c{Focus Position} - the vertical placement of the center of - effect (the 'focused region') on the screen, from top to bottom. -\li - \c{Focus Width} - the vertical size of the in-focus region. -\li - \c{Blur Amount} - how much the not-in-focus regions are blurred. -\endlist -As with the Depth of Field effect, this effect has a -\c{Debug Rendering} option that you can enable to see where the -blur will be applied to the Layer. (See above for further description.) +\section1 Properties + +\table + \header + \li Property + \li Description + \row + \li + Focus position + \li + The vertical placement of the center of the focused area on the screen. A value + 0.5 will put the center in the middle of the screen. + \row + \li + Focus width + \li + The height of the focused area. + \row + \li + Debug rendering + \li + Allows you to see exactly how the focus variables work. + \row + \li + Blur amount + \li + The amount of blur applied to the unfocused areas. + \row + \li + Vertical + \li + Makes the effect work vertically instead of horizontally. + \row + \li + Invert blur + \li + Inverts the blur so that the center is blurred while the other areas are sharp. +\endtable + +\section1 Usage + +To make it easier to set up this effect, enable \uicontrol{Debug focus rendering}. When enabled, +the scene view switches to a mode showing the amount of blur to be applied. Anything completely +fogged in white is entirely blurred, anything that is fully black is entirely in focus, and +shades of grey represent varying amounts of blur in between. It is far easier to turn on this +mode and adjust the values in the inspector palette until the content you want is bracketed, +compared to performing distance calculations and entering numbers. + \image Effects-TiltShift-Debug.png */ |