What is the Fusion equivalent of After Effects Pre-multiplied - Matted with Color on importing.
Essentially I have a 16bit .exr image that was rendered on a white background - in AE you choose the colour on import the image was rendered on & it pre-multiplies the colour therefore removing the Jaggy White edges that are within the images aliased edges.
you have to build it with some nodes by your self, this sounds at the start maybe scary but then its more powerful then a pure unpremult by white.
with this method you can unpremult by any color or even with image BGs (as long as you have a cleanplate)
{
Tools = ordered() {
SubstractFGBG = ChannelBoolean {
NameSet = true,
Inputs = {
Operation = Input { Value = 2, },
Background = Input {
SourceOp = "PipeRouter1",
Source = "Output",
},
Foreground = Input {
SourceOp = "MultiplyBGA",
Source = "Output",
},
Comments = Input { Value = "Substract BG from FG", },
},
ViewInfo = OperatorInfo { Pos = { 813.815, 390.285, }, },
},
ChannelBooleans4 = ChannelBoolean {
CtrlWZoom = false,
Inputs = {
ToRed = Input { Value = 4, },
ToGreen = Input { Value = 4, },
ToBlue = Input { Value = 4, },
Background = Input {
SourceOp = "SubstractFGBG",
Source = "Output",
},
Foreground = Input {
SourceOp = "PipeRouter1",
Source = "Output",
},
Comments = Input { Value = "bring back original alpha", },
},
ViewInfo = OperatorInfo { Pos = { 982.929, 397.106, }, },
},
MultiplyBGA = ChannelBoolean {
NameSet = true,
Inputs = {
Operation = Input { Value = 6, },
Background = Input {
SourceOp = "Background1_1",
Source = "Output",
},
Foreground = Input {
SourceOp = "InvertAlpha",
Source = "Output",
},
Comments = Input { Value = "multiply BG with inverted alpha, to matte out the FG", },
},
ViewInfo = OperatorInfo { Pos = { 625.969, 393.695, }, },
},
Note2 = Note {
Inputs = {
Comments = Input { Value = "here is the BG Image, look that is has the same dimensions like your footage", },
},
ViewInfo = StickyNoteInfo {
Pos = { 351.13, 270.919, },
Flags = {
Expanded = true,
},
Size = { 196, 179.3, },
},
},
InvertAlpha = ChannelBoolean {
NameSet = true,
Inputs = {
Operation = Input { Value = 10, },
ToRed = Input { Value = 3, },
ToGreen = Input { Value = 3, },
ToBlue = Input { Value = 3, },
Background = Input {
SourceOp = "PipeRouter1",
Source = "Output",
},
Comments = Input { Value = "Invert the original alpha", },
},
ViewInfo = OperatorInfo { Pos = { 636.471, 307.297, }, },
},
Background1_1 = Background {
Inputs = {
Width = Input { Value = 2048, },
Height = Input { Value = 1556, },
["Gamut.SLogVersion"] = Input { Value = FuID { "SLog2", }, },
TopLeftRed = Input { Value = 1, },
TopLeftGreen = Input { Value = 1, },
TopLeftBlue = Input { Value = 1, },
Gradient = Input {
Value = Gradient {
Colors = {
[0] = { 0, 0, 0, 1, },
[1] = { 1, 1, 1, 1, },
},
},
},
},
ViewInfo = OperatorInfo { Pos = { 393.193, 397.106, }, },
},
PipeRouter1 = PipeRouter {
ViewInfo = PipeRouterInfo { Pos = { 646.703, 231.13, }, },
},
Note1 = Note {
Inputs = {
Comments = Input { Value = "Image with BG goes here", },
},
ViewInfo = StickyNoteInfo {
Pos = { 722.869, 201.573, },
Size = { 196, 179.3, },
},
},
},
}