27 lines
3.2 KiB
Markdown
27 lines
3.2 KiB
Markdown
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# Screen Space Size
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Menu Path : **Output > Screen Space Size**
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The **Screen Space Size** Block calculates the scaleXYZ property of each particle to reach a size relative to the pixel size or screen size.
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## Block compatibility
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This Block is compatible with the following Contexts:
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- Any output Context
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## Block settings
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| **Setting** | **Type** | **Description** |
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| --------------- | -------- | ------------------------------------------------------------ |
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| **Size Mode** | Enum | Specifies how to resize the particles. This can be an absolute pixel value, or a size relative to the resolution. The options are:<br/>• **Pixel Absolute**: Uses a size in absolute pixel width.<br/>• **Pixel Relative To Resolution**: Uses a size in absolute pixel width assuming the screen is at a target resolution. At the target resolution, this is equivalent to **Pixel Absolute**.<br/>• **Ratio Relative To Width**: Uses a size relative to the current width of the rendering target, a value of 0.1 makes the ScaleXY represent 10% of the screen width.<br/>• **Ratio Relative To Height**: Uses a size relative to the current height of the rendering target, a value of 0.1 makes the ScaleXY represent 10% of the screen height.<br/>• **Ratio Relative To Height And Width**: Uses a size relative to the current height and width of the rendering target, a value of 0.1 makes the ScaleX represent 10% of the screen width and the ScaleY represent 10% of the screen height. Thus, ScaleXY has the same ratio as the screen. |
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| **Size Z Mode** | Enum | **(Inspector)** Specifies how to calculate the z-axis scale of the particle if the system uses the ScaleZ attribute. The options are:<br/>• **Ignore** : Doesn’t modify the particles' ScaleZ.<br/>• **Same As Size X** : Uses a particle's ScaleX value as its ScaleZ.<br/>• **Same As Size Y** : Uses a particle's ScaleY value as its ScaleZ.<br/>• **Min Of Size XY** : Uses the lowest value between a particle's ScaleX and ScaleY as its ScaleZ.<br/>• **Max Of Size XY** : Uses the highest value between a particle's ScaleX and ScaleY as its ScaleZ.<br/>• **Average Of Size XY** : Uses the mean of a particle's ScaleX and ScaleY as its ScaleZ. |
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## Block properties
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| **Input** | **Type** | **Description** |
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| ------------------------ | -------- | ------------------------------------------------------------ |
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| **Pixel Size** | float | The size of the particle in pixels.<br/>This property only appears if you set **Size Mode** to **Pixel Absolute** or **Pixel Relative To Resolution**. |
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| **Relative Size** | float | The ratio of the particle in relation to the selected size mode. A value of **1.0** means that the particle resizes to match the specified screen dimension.<br/>This property only appears if you set **Size Mode** to **Ratio Relative To Height**, **Ratio Relative To Width**, or **Ratio Relative To Height And Width**. |
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| **Reference Resolution** | Vector2 | The screen resolution to set the particle’s pixel size relative to. <br/>This property only appears if you set **Size Mode** to **Pixel Relative To Resolution**. |
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