Effects » Colour » Requires remote control » RC_Lift


RC_Lift
Author(s):
Release date: April 18, 2018
Creation date: Feb. 1, 2017
License: unknown

Lightworks user effect RC_Lift_20180418.fx

This is a simple luminance lift control.
This effect can only be influenced by a remote control.

Suitable remote controls can be found in the category "User" / Subcategory "Remote Control"
For this, the transmitting remote control is connected to the RC input.
In the effect settings of this remotely controllable effect
the channel number should be adjusted, which should control this effect.
Please note the description of the connected remote control effect
in order to determine the relevant remote control channel.

Updates:
18 April 2018 by LW users schrauber: Now this effect sets the black level (dark tones or shadows).
Older versions set the offset, which does not match the definition of "lift".
18 April 2018 by LW users schrauber: Lightworks category and subcategory changed
19 Feb 2017 by LW users schrauber: If Channel 0 is set in the effect settings, the remote control is now disabled.
17 Feb 2017 by LW user jwrl: The effect now preserves the alpha channel
17 Feb 2017 by LW user jwrl: Prevention of potential override of the values.

Inputs and Samplers
If a channel position is set outside the texture (e.g., channel 0), a black border turns off the remote control
If a channel position is set outside the texture (e.g., channel 0), a black border turns off the remote control
Parameters
Macros
Receiving scalar value from the remote control input
The documentation for the macro RECEIVING (Ch), and the associated sub-macros, can be found in the subcode repository.
Shaders
The following code is an inverted direction of the "RC-gain" code.
Technique