Here's a quick example. The RGB and Z nodes are Loaders that hold the respective images.
- Code: Select all
{
Tools = ordered() {
Z_1 = Loader {
Clips = {
},
NameSet = true,
Inputs = {
["Gamut.SLogVersion"] = Input { Value = FuID { "SLog2" }, },
},
ViewInfo = OperatorInfo { Pos = { 220, -49.5 } },
},
RGB_1 = Loader {
Clips = {
},
NameSet = true,
Inputs = {
["Gamut.SLogVersion"] = Input { Value = FuID { "SLog2" }, },
},
ViewInfo = OperatorInfo { Pos = { 220, 16.5 } },
},
ChannelBooleans1_1 = ChannelBoolean {
Inputs = {
ToRed = Input { Value = 4, },
ToGreen = Input { Value = 4, },
ToBlue = Input { Value = 4, },
ToAlpha = Input { Value = 4, },
EnableExtraChannels = Input { Value = 1, },
ToZBuffer = Input { Value = 0, },
Background = Input {
SourceOp = "RGB_1",
Source = "Output",
},
Foreground = Input {
SourceOp = "Z_1",
Source = "Output",
},
},
ViewInfo = OperatorInfo { Pos = { 330, 16.5 } },
},
Z = Loader {
Clips = {
},
NameSet = true,
Inputs = {
["Gamut.SLogVersion"] = Input { Value = FuID { "SLog2" }, },
},
ViewInfo = OperatorInfo { Pos = { 220, 115.5 } },
},
LumaKeyer1 = LumaKeyer {
CtrlWZoom = false,
Inputs = {
Channel = Input { Value = 7, },
High = Input { Value = 349.999994784594, },
Low = Input { Value = 129.999998062849, },
Invert = Input { Value = 1, },
Input = Input {
SourceOp = "ChannelBooleans1",
Source = "Output",
},
},
ViewInfo = OperatorInfo { Pos = { 605, 82.5 } },
},
ChannelBooleans1 = ChannelBoolean {
Inputs = {
ToRed = Input { Value = 4, },
ToGreen = Input { Value = 4, },
ToBlue = Input { Value = 4, },
ToAlpha = Input { Value = 4, },
EnableExtraChannels = Input { Value = 1, },
ToZBuffer = Input { Value = 0, },
Background = Input {
SourceOp = "RGB",
Source = "Output",
},
Foreground = Input {
SourceOp = "Z",
Source = "Output",
},
},
ViewInfo = OperatorInfo { Pos = { 330, 181.5 } },
},
Merge1 = Merge {
Inputs = {
Background = Input {
SourceOp = "ChannelBooleans1",
Source = "Output",
},
Foreground = Input {
SourceOp = "ChannelBooleans1_1",
Source = "Output",
},
},
ViewInfo = OperatorInfo { Pos = { 495, 181.5 } },
},
RGB = Loader {
Clips = {
},
NameSet = true,
Inputs = {
["Gamut.SLogVersion"] = Input { Value = FuID { "SLog2" }, },
},
ViewInfo = OperatorInfo { Pos = { 220, 181.5 } },
},
Note1 = Note {
Inputs = {
Comments = Input { Value = "This assumes that your depth map represents Z in its RGB channels. The assignment of Red to Z happens in the Aux Channels tab.\n\nRGBA are set to \"Do Nothing\", which will simply send those channels from the Background input to the Output unchanged. You could, alternately, set them to \"Red BG\" etc to make more explicit what you want to happen, but the end result would be the same.", }
},
ViewInfo = StickyNoteInfo {
Pos = { 275, 214.5 },
Flags = {
Expanded = true
},
Size = { 196, 337.3 }
},
},
ChannelBooleans2 = ChannelBoolean {
Inputs = {
Operation = Input { Value = 3, },
Background = Input {
SourceOp = "Blur2",
Source = "Output",
},
Foreground = Input {
SourceOp = "LumaKeyer1",
Source = "Output",
},
},
ViewInfo = OperatorInfo { Pos = { 715, 82.5 } },
},
Blur2 = Blur {
Inputs = {
XBlurSize = Input { Value = 0.3, },
Input = Input {
SourceOp = "ErodeDilate1",
Source = "Output",
},
},
ViewInfo = OperatorInfo { Pos = { 715, 16.5 } },
},
Filter1 = Filter {
Inputs = {
FilterType = Input { Value = 3, },
Input = Input {
SourceOp = "ChannelBooleans1_1",
Source = "Output",
},
},
ViewInfo = OperatorInfo { Pos = { 715, -49.5 } },
},
ErodeDilate1 = ErodeDilate {
Inputs = {
XAmount = Input { Value = -0.000137, },
Input = Input {
SourceOp = "Filter1",
Source = "Output",
},
},
ViewInfo = OperatorInfo { Pos = { 715, -16.5 } },
},
Blur1 = Blur {
Inputs = {
Input = Input {
SourceOp = "Merge1",
Source = "Output",
},
EffectMask = Input {
SourceOp = "ChannelBooleans2",
Source = "Output",
}
},
ViewInfo = OperatorInfo { Pos = { 715, 181.5 } },
},
Note2 = Note {
Inputs = {
Comments = Input { Value = "Sobel is the actual name of Photoshop's Edge Detect. A little Erode to make the edge thinner and Blur to soften it. These controls will need to be adjusted depending on the relative size of the object to be integrated.\n\nAnd or Multiply in the Boolean. The logic is to only show the edge detect where the inverted Depth Key is solid.\n\nYou'd use the Near/Far Plane controls in the Luma Keyer to select the occluding foreground geometry.\n\nUsing this edge matte as a mask on the blur, you can soften the integration between character and background. It's not as good as an anti-aliased alpha, but it's probably better than depth alone.", }
},
ViewInfo = StickyNoteInfo {
Pos = { 825, -49.5 },
Flags = {
Expanded = true
},
Size = { 205, 495.3 }
},
}
}
}
The major issue with a depth merge is that a depth map is not anti-aliased. Each pixel must represent an actual distance from the camera, so having intermediate colors on the edges is non-sensical—you don't want the edges of your character to get pushed halfway to the max depth. As a result, it's difficult to get a nicely-blended composite with a depth merge.
A more typical workflow in a situation like this would be to render multiple planes of your action. In this case, your layers would probably be the building minus its front wall, the character, and the building's front wall. Then you'd use the standard Merge to combine them.
You could try to do a little manual edge blending by using a Sobel filter on your character's alpha (Filter tool), and try to isolate the front wall with a LumaKey off the depth in order to use that wall to subtract from the character's edge. That would become a mask to do some edge treatment. It's simple enough to set it up, so I included an example of that in the nodes I shared above.
Posted: Tue Jun 18, 2019 3:04 pm
