Provides image sequence features for the Sprite particles. 更多...
| import 语句： | import QtQuick3D.Particles3D |
| Since: | Qt 6.2 |
| 继承： |
The SpriteSequence3D element provides support for animated images with multiple frames. The frames should be aligned horizontally in the image, first frame being on the left and last on the right.
To make a SpriteParticle3D an animated sequence, set its spriteSequence 特性。
|
AnimationDirection : enumeration |
Defines the animation playback direction of the sequence.
| 常量 | 描述 |
|---|---|
SpriteSequence3D.Normal
|
Animate from the first frame to the last frame. When the last frame is reached, jump back to the first frame. |
SpriteSequence3D.Reverse
|
Animate from the last frame to the first frame. When the first frame is reached, jump back to the last frame. |
SpriteSequence3D.Alternate
|
Animate from the first frame to the last frame. When the last or first frame is reached, switch the animation direction. This makes the sequence animation smooth even when the first and the last frames don't match. |
SpriteSequence3D.AlternateReverse
|
Animate from the last frame to the first frame. When the last or first frame is reached, switch the animation direction. This makes the sequence animation smooth even when the first and the last frames don't match. |
SpriteSequence3D.SingleFrame
|
Don't animate the frame. When the randomStart is false, frameIndex frame is rendered. When the randomStart is true, each particle renders a random frame. |
|
animationDirection : AnimationDirection |
This property defines the animation direction of the sequence.
默认值为
SpriteSequence3D.Normal
.
另请参阅 randomStart .
|
duration : int |
This property defines the duration in milliseconds how long it takes for the sprite sequence to animate. For example, if the duration is
400
和
frameCount
is 8, each frame will be shown for 50 milliseconds. When the value is -1, the particle lifeSpan is used as the duration.
默认值为
-1
.
|
durationVariation : int |
This property defines the duration variation in milliseconds. The actual duration of the animation is between
duration
-
durationVariation
and
duration
+
durationVariation
.
默认值为
0
(no variation).
|
frameCount : int |
This property defines the amount of image frames in
sprite
. Particle animates through these frames during its
duration
. The frames should be laid out horizontally in the same image file. For example,
sprite
could be a
512x64
image, with
frameCount
of
8
. This would make each particle frame size
64x64
像素。
默认值为
1
.
注意： If your image only has a single sprite frame, don't define the spriteSequence property at all.
另请参阅 interpolate .
|
frameIndex : int |
This property defines the initial index of the frame. This is the position in between frames where the animation is started. For example when the
frameIndex
is 5 and the
animationDirection
is
Normal
, the first rendered frame is 5. If the
animationDirection
is
Reverse
, the first rendered frame is 4.
The value of frameIndex must be between 0 and
frameCount
-
1
. When the
animationDirection
is
SingleFrame
and
randomStart
is
false
, all the particles will render sprites with the
frameIndex
.
默认值为
0
.
另请参阅 randomStart and animationDirection .
|
interpolate : bool |
This property defines if the sprites are interpolated (blended) between frames to make the animation appear smoother.
默认值为
true
.
另请参阅 frameCount .
|
randomStart : bool |
This property defines if the animation should start from a random frame between
0
and
frameCount
-
1
. This allows animations to not look like they all just started when the animation begins.
默认值为
false
.
另请参阅 animationDirection .
