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Diffstat (limited to 'doc/src/10-best-practices/hdr-bloom-tonemap-effect.qdoc')
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1 files changed, 50 insertions, 33 deletions
diff --git a/doc/src/10-best-practices/hdr-bloom-tonemap-effect.qdoc b/doc/src/10-best-practices/hdr-bloom-tonemap-effect.qdoc index 7349a453..f44a9a20 100644 --- a/doc/src/10-best-practices/hdr-bloom-tonemap-effect.qdoc +++ b/doc/src/10-best-practices/hdr-bloom-tonemap-effect.qdoc @@ -33,48 +33,65 @@ \ingroup qt3dstudio-best-practices \target hdrbloomtonemap -\section1 Using HDRBloomTonemap -\image Effects-HDRBloomTonemap.png - -The \"HDRBloomTonemap\" effect provides two features: +The HDR bloom tonemap effect provides two features: -\list 1 +\list \li Adjust the gamma and exposure of the high-dynamic range rendered - content to achieve the image quality you want, and + content to achieve the image quality you want. \li - Apply an adjustable 'bloom' effect to very bright areas (like the sun + Apply an adjustable bloom effect to very bright areas (like the sun glinting off a car). \endlist -When you add an HDRBloomTonemap effect to a layer, the following -properties are available in the Inspector palette: -\list -\li - \b{Gamma} - this affects the non-linear curve of the lighting. - Higher values will increase the exposure of mid tones, lightening the - image (and decreasing the contrast). A value of \c{1.0} causes no - adjustment to the image. -\li - \b{Exposure} - this is a linear multiplier on the lighting, - brightening or darkening the image overall. A value of \c{0.0} - causes no adjustment to the image. -\li - \b{Bloom Threshold} - lighting greater than this value will - bloom. A value of \c{1.0} corresponds to white in the original - render result. Lowering this value will cause more areas of the - rendered scene to bloom; at a value of \c{0.0} everything in the - scene will bloom. -\list -\li - \e{Tip: to disable bloom and use only the tone mapping, set this to - a sufficiently high value, like \c{999}.} -\endlist -\li - \b{Bloom Falloff} - adjusts the amount of bloom. Lower values +In the image below, the effect is applied in the right picture. + +\image Effects-HDRBloomTonemap.png + +\section1 Properties + +\table + \header + \li + Property + \li + Description + \row + \li + Gamma + \li + Affects the non-linear curve of the lighting. + Higher values increase the exposure of mid tones, lightening the + image (and decreasing the contrast). A value of \c{1.0} causes no + adjustment to the image. + \row + \li + Exposure + \li + A linear multiplier on the lighting, + brightening, or darkening the image overall. A value of \c{0.0} + causes no adjustment to the image. + \row + \li + Bloom threshold + \li + Lighting greater than this value blooms. A value of \c{1.0} corresponds to white + in the original render result. Lowering this value causes more areas of the + rendered scene to bloom; at a value of \c{0.0} everything in the + scene blooms. + \row + \li + Bloom falloff + \li + Adjusts the amount of bloom. Lower values result in stronger bloom effect; higher values make the effect more subtle. -\endlist +\endtable + +\section1 Usage + +To disable bloom and use only the tone mapping, set \uicontrol{Bloom falloff} to +a sufficiently high value, like \c{999}. */ |