BCC RGB Blend

Category: BCC Key and Blend

Effect Name: BCC RGB Blend

The BCC RGB Blend filter, part of the BCC Key and Blend category, provides independent compositing of the source image’s RGB channels with the Mix Layer’s RGB Channels. The brightness and contrast of the composite can be adjusted independently for each channel.

Working with the Filter

Presets and Common Controls

• BCC filters come with a library of factory installed presets plus the ability to create your own custom presets and preview them with the BCC FX Browser™.
• BCC filters also include common controls that configure global effect preferences and other host-specific effect settings.

For more information about working with presets and other common controls, Click Here.

Effect Controls

Mocha Mask and Track

Continuum effects include integrated masking and matte tools that allow you to restrict the effect to specific regions of the image.

• Mocha masks: used to create custom spline masks. Mocha also includes Matte Assist ML and Matte Refine ML, which use machine learning to generate and track masks.
• Pixel Chooser: used to generate geometric shapes, gradients, or mattes based on channel, luma, or color-based selections. Additionally, an AI depth map generator, and an AI-powered face detection model allow for precise control of masks and mattes.

For more information, see Mocha and Pixel Chooser.

Compare Mode

The Compare Mode is used to view the filtered result alongside the original source layer. Several split-screen and side-by-side display options are available.

For more information, see Compare Mode.

• Mix Layer: Selects the clip or layer that is composited with the original image.
• Apply Geometrics to Mix Layer: When disabled, the Mix Layer is resized to the size of the source image. When enabled, the controls in the Mix Layer Geometrics group are applied to the Mix Layer before it is composited. The display units of the crop and position controls are scaled to the source layer, not the Mix Layer.

Mix Layer Geometrics Group

• Lock scale to X: When enabled, the Scale X and Y values are locked in proportion to each other.
• Scale X: Sets the size of the source width along the horizontal axis.
• Scale Y: Sets the size of the source height along the vertical axis.
• Position XY: Sets the position of the center point along the horizontal and vertical axes.
• Position Z: Sets the apparent depth of the source.
• Tumble: Tumbles the source image around the X axis.
• Spin: Spins the source image around the Y axis.
• Rotate: Rotates the source image around the Z axis.
• Crop Top-Left: Sets the upper left corner of the cropped image.
• Crop Bot-Right: Sets the bottom right corner of the cropped image.
• Blend: Softens the edges of the image by reducing their opacity.

• Order: Determines the order of the two layers in the composite.
• Mix On Top: Composites the Mix Layer over the filtered layer.
• Original On Top: Composites the original image over the Mix Layer.
• Lock Mix: When enabled, adjusting the Red Mix sets all the Mix parameters. Disable to adjust each level independently.
• Red Mix: Sets the mix of source and mix layer in the red color channel.
• Green Mix: Sets the mix of source and mix layer in the green color channel.
• Blue Mix: Sets the mix of source and mix layer in the blue color channel.
• Alpha Mix: Sets how the source and Mix Layer’s alpha channels are mixed to produce a composite alpha channel. For example, if the Composite Order menu is set to Mix Layer Over Source and Alpha Mix is 0, the source’s alpha channel is used as the composite alpha. As the Alpha Mix value increases, the Mix Layer’s alpha channel is mixed with the source alpha to produce the composite alpha. At an Alpha Mix value of 50, the composite alpha is an equal mix of the source and Mix Layer alpha channels. When Alpha Mix is 100, the Mix Layer’s alpha channel is used as the composite alpha.
• Apply Mode: Determines how the source and Mix Layers are composited.
• Apply Mix: Blends the Apply Mode setting with the Mix From setting. The resulting mixed mode is used to composite the Mix Layer over the original source media.

• Lock Brightness: When enabled, the Red Brightness values are used for the Green and Blue Brightness values.
• Red Brightness: Sets the brightness of the red color channel.
• Green Brightness: Sets the brightness of the green color channel.
• Blue Brightness: Sets the brightness of the blue color channel.
• Lock Contrast: When enabled, the Red Contrast values are used for the Green and Blue Contrast values.
• Red Contrast: Sets the contrast of the red color channel.
• Green Contrast: Sets the comtrast of the green color channel.
• Blue Contrast: Sets the contrast of the blue color channel.
• Enable Mix Back: When enables, allows for the creation of transitions between the source layer, composite image, and Mix Layer without having to adjust multiple parameters.
• Mix Back: Determines which pixels are mixed.
• Slider: All pixels are affected, and Mix Back determines how the pixels in the source and Mix Layers are composited. If Mix Back is –100, the source layer is completely opaque. As Mix Back approaches 0, the composite image becomes increasingly opaque. At 0, the composite image is completely opaque.
• Pixel Chooser: Pixels are mixed according to the selection in the Pixel Chooser. Pixels that are fully selected in the Pixel Chooser are mixed according to the Mix Back Max setting. Pixels that are fully unselected in the Pixel Chooser are mixed according to the Mix Back Min setting. Pixels that are partially selected are mixed to intermediate values between the Mix Back Min and Mix Back Max settings. Mix Back Min and Mix Back Max each work in the same way as the Mix Back parameter used when Mix Back From is set to Slider. If the Mix Back Min and Mix Back Max settings are the same, then the Pixel Chooser selection has no effect.
• Original Alpha: The alpha channel in the source layer is used to determine which pixels are selected. When Original Alpha is selected, the source’s alpha channel is not used for compositing–that is, the source behaves like a fully opaque layer. Pixels that are fully opaque in the source alpha are mixed according to the Mix Back Max setting. Pixels that are fully transparent in the source alpha are mixed according the Mix Back Min setting. Pixels that are partially transparent in the source alpha are mixed to an intermediate value. Original Alpha is designed to allow you to create mattes for the Mix Back parameters by altering the source layer’s alpha channel.

Note: The Mix Back/Mix Back Min, and Mix Back Max values are scaled by the Mix in Front value. Therefore, if Mix in Front is at a value less than 100, the Mix Layer never reaches full opacity, even if Mix Back or Mix Back Max is at 100. The range of opacities also varies according to the Apply Mode settings.

The Mix Back Min and Mix Back Max can be animated to create a transition from the source layer, to a composite effect, and then to the Mix Layer.