The Corner Y slave component of Bomber Plus Plus outputs the Y coordinate (converted to an HDR grayscale value) of the specified corner of the particle which is currently being rendered. The coordinate is calculated after all transformations, offsets and chaos have been applied. The main use of this component is to lookup a value or color from a custom map at the particle corners or at other points within the particle to create artistic effects. This component can output HDR colors.
In order to affect individual particles, this slave component must be connected to the subtree of its master's Particle input, and such connection must not be routed through any bitmap-based components.
For general information about slave components, see Slave components.
Specifies the corner whose coordinate will be sent to the output: Top-Left, Top-Right, Bottom-Right or Bottom-Left. When a map component is connected to this input, the number of the selected list item is determined separately for different image areas by the HDR brightness level of the image supplied by that component. The item number is calculated as the brightness level rounded to the nearest integer: the brightness level of 0 to 0.5 corresponds to the first item, the level of 0.5 to 1.5 to the second item, 1.5 to 2.5 to the third item etc. Out-of-range values are clipped, which corresponds to the last item of the list.
Preview:
This control allows you to preview output values of the slave component, which may be useful for creating and debugging the Particle subtree. Technically, Preview defines the output of the slave component in situations when it is sampled by any input other than its master's Particle input.
