A tonemapping effect. 更多...
| import 语句： | import QtQuick3D.Effects 6.2 |
The SCurveTonemap effect maps the luminance of each pixel in the Scene according to an s-shaped curve:
The curve has three parts. The toe area determines the shadows, and is governed by toeSlope and toeEmphasis . The middle part determines overall contrast, and is changed by contrastBoost 。 shoulder area determines the highlights, and is governed by shoulderSlope and shoulderEmphasis .
| contrastBoost : real |
Enhances or reduces the overall contrast of the tonemap. This changes the slope of the middle part of the s-curve.
The range is
[-1...2]
。默认值为
0
.
| exposureValue : real |
Specifies the exposure for the tonemap effect. This value is only used if
useExposure
is
true
. The range is
[0.01...16]
。默认值为
1
.
| gammaValue : real |
Sets the gamma value for the tonemap effect. Sensible values are in the range
[0.1...8]
。默认值为
2.2
.
| saturationLevel : real |
Sets the overall saturation level of the tonemap effect. The range is
[0...2]
，采用
0
being fully grayscale and
2
being very oversaturated. The default value is
1
.
| shoulderEmphasis : real |
Modifies the shape of the
shoulder
part of the s-curve. The range is
[-1...1]
。默认值为
0
.
另请参阅 shoulderSlope .
| shoulderSlope : real |
Sets the slope of the shoulder part of the s-curve. The shoulder defines where highlights lose contrast.
The range is
[0...3]
。默认值为
1
.
另请参阅 shoulderEmphasis .
| toeEmphasis : real |
Modifies the shape of the
toe
part of the s-curve. The range is
[-1...1]
。默认值为
0
.
另请参阅 toeSlope .
| toeSlope : real |
Sets the slope of the toe part of the s-curve. The toe defines where shadows lose contrast.
The range is
[0...3]
。默认值为
1
.
另请参阅 toeEmphasis .
| useExposure : bool |
Makes the effect use
whitePoint
而不是
exposureValue
for luminance calculations. The default value is
false
.
| whitePoint : real |
Sets the white point of the tonemap. This value is only used if
useExposure
is
false
. The range is
[0.01...128]
。默认值为
1
.
