69 replies to this topic

[force_redo]

The Shake to Fusion transition guide

This is a little guide for Shake operators to help them make a smooth transition to Fusion. Since I have bought a Fusion recently but don't have a shake at home, all the Shake functionality is just from my memory, so I haven't tried it all out in both softwares...

I just include Shake's basic functionality and try to recreate it with Fusion's tools "out of the box". However, I have included the Krokodove plugin (level 1) since it's free and seems to be a great addition.

This is not meant to be a comparison of the two softwares by any means and it does include a lot of my personal judgement. Many of the features Fusion has are left out, simply because they don't have an equivalent in Shake. Hence it is a "Where to find my Shake functionality in Fusion" guide rather than a "great things that one or the other package can do" guide. (For instance particles aren't mentioned, because there is no particle generator in Shake)

Explaination of the symbols:
[===] : Similar tool in Fusion
[!!!] : No similar tool in Fusion and no easy or obvious workaround
[Wxx] : No similar tool in Fusion, but one or more workarounds (numbered xx)
[+++] : Similar tool in Fusion which is superior to it's Shake counterpart because of more/better functionality
[---] : Similar tool in Fusion which is inferior to it's Shake counterpart because of less/worse functionality
[???] : I don't know what the Shake function does precisely or I'm quite sure there is a Fusion equivalent, but I can't find it.
[Cxx] : The xxth comment or explaination about a tool

Please help with improving this guide. I'm very new to Fusion, so I'm sure I don't know about a lot of things. I plan to edit this post with all the input I get. (Perhaps the moderators want to pin it to the top, too?)
A good start would be to help out with the tools labelled [!!!] and [???]. Comments and proposed workarounds are great, too.

One word about the macros in this thread: Please make sure that you read the individual posts in which the macros are posted. For some there are alternative (improved) versions.

Here we go:

Image
----------
Checker
[W01] SecondMan has made a macro for this you can download below
[W02] Daniel Koch has made an improved macro for this you can download below
Color
[===] Creator - Background
ColorWheel
[===] Creator - Background (Gradient - Angle)
[C01] The Colors need to be defined
[C02] the wheel needs to be limited by a mask
Filein
[===] I/O - Loader
Fileout
[===] I/O - Saver
Grad
[===] Creator - Background (Horizontal/Vertical)
Quickpaint
[+++] Paint - Paint
QuickShape
[===] Mask - Bspline/Polygon
Ramp
[===] Creator - Background (Four Corner)
Rand
[W01] Creator - Background -> Krokodove - Noise
[W02] SecondMan has made a macro for this you can download below
RGrad
[===] Creator - Background (Gradient - Radial)
[C01] set the start to( .5,.5) , set the first key(small triangle) on the gradient bar as r,g,b,a, = 1.0 and set the last key as rgba = 0.0
RotoShape
[---] Mask - Bspline/Polygon
Text
[+++] Creator - Text+

Color
----------
Add
[===] Color - Brightness/Contrast (Brightness)
AdjustHSV
[===] Color - Color Corrector (Hue/Saturation/Gain)
Brightness
[===] Color - Brightness/Contrast (Gain)
Clamp
[W01] Color - Color Curves
ColorCorrect
[+++] Color - Color Corrector
ColorMatch
[W01] Color - Color Curves
ColorReplace
[W01] Krokodove - Replace Color
[W02] SecondMan has made a macro for this you can download below
ColorSpace
[===] Color - Color Space
ColorX
[+++] Miscellaneous - Custom Tool
Compress
[W01] Color - Color Curves
ContrastLum
[W01] Sandwitch a Contrast between two Color Space (to and from HLS) and contrast the green channel only (the L component)
ContrastRGB
[===] Color - Color Corrector
Expand
[W01] Color - Color Curves
Fade
[===] Color - Brightness/Contrast (tick "Alpha")
Gamma
[===] Color - Brightness/Contrast
HueCurves
[!!!]
Invert
[===] Color - Channel Booleans (Operation "Negative")
[W01] Krokodove - Invert
[W02] Color - Color Space (Negative) Doesn't seem to affect Alpha, though
LogLin
[===] Film - CineonLog
Lookup
[===] Color - Color Curves
LookupFile
[===] Color - Color Curves (load LUT)
LookupHLS
[W01] Sandwich Color - Color Curves inside two Color Space
LookupHSV
[W01] Sandwich Color - Color Curves inside two Color Space
MDiv
[W01] dts74 has made a macro for this you can download below
[W02] Daniel Koch has made a macro for this you can download below
[C01] Most Color Correction Tools have Premult and Unpremult Options
MMult
[W01] dts74 has made a macro for this you can download below
[W02] Daniel Koch has made a macro for this you can download below
[C01] Most Color Correction Tools have Premult and Unpremult Options
Monochrome
[===] Color - Color Space (BW)
Mult
[===] Color - Color Gain
Reorder
[+++] Color - Channel Booleans
Saturation
[===] Color - Color Gain
Set
[W01] Miscellaneous - Custom Tool
SetAlpha
[W01] Miscellaneous - Custom Tool
SetBGColor
[!!!]
[C01] No Infinite Workspace in Fusion
Solarize
[W01] Color - Color Curves
Threshold
[W01] Color - Color Curves

Filter
----------
ApplyFilter
[???]
Blur
[===] Blur - Blur
Convolve
[===] Filter - Custom Filter
Defocus
[===] Blur - Defocus
DilateErode
[---] Filter - Erode / Dilate
EdgeDetect
[---] Filter - Filter (Sobel / Laplacian)
Emboss
[---] Filter - Filter (Relief)
FilmGrain
[---] Film - Grain
Grain
[===] Film - Grain
IBlur
[!!!]
[C01] There is a workaround using Deep Pixel - Depth Blur, but it seems to react differently IMO
IDefocus
[!!!]
IDilateErode
[!!!]
IRBlur
[!!!]
ISharpen
[!!!]
Median
[===] Filter - Rank Filter
PercentBlur
[W01] Blur - Blur (Tweak Values)
[W02] Krokodove - Blur in Space
Pixelize
[W01] SecondMan has made a macro for this you can download below
RBlur
[===] Blur - Directional Blur (Radial)
Sharpen
[===] Blur - Sharpen
ZBlur
[===] Deep Pixel - Depth Blur
ZDefocus
[!!!]

Key
----------
ChromaKey
[===] Matte - Chroma Keyer
DepthKey
[===] Matte - Luma Keyer (Channel - Depth)
DepthSlice
[???]
LumaKey
[===] Matte - Luma Keyer
Primatte
[!!!]
[C01] Primatte is available as plugin
SpillSupress
[+++] Matte - Matte Control (Spill Tab)
[C01] Color - Color Corrector can surpress colours, though
Keylight
[!!!]

Layer
----------
Addmix
[W01] add ccv set to affect alpha only after both fg and bg ;set merge to over
AddText
[W01] Creator - Text+ and a Merge Tool
Atop
[===] Composite - Merge (Atop)
Common
[===] Matte - Difference Keyer
Constraint
[???]
Copy
[===] Color - Channel Booleans (Copy)
IAdd
[===] Color - Channel Booleans (Add)
IDiv
[===] Color - Channel Booleans (Divide)
IMult
[===] Color - Channel Booleans (Multiply)
Inside
[W01] Color - Channel Booleans (Multiply)
Interlace
[===] Miscellaneous - Fileds
ISub
[===] Color - Channel Booleans (Subtract)
ISubA
[===] Color - Channel Booleans (Difference)
KeyMix
[+++] Color - Channel Booleans (pick matte channel in the "nuclear tab")
LayerX
[+++] Miscellaneous - Custom Tool
Max
[===] Color - Channel Booleans (Maximum)
Min
[===] Color - Channel Booleans (Minimum)
Mix
[+++] Composite - Dissolve
Multilayer
[!!!]
Multiplane
[+++] All the tools to be found under the 3D tab
Outside
[W01] see "Inside", invert second image
Over
[+++] Composite - Merge
Screen
[===] Composite - Merge (Screen)
SwitchMatte
[!!!]
Under
[W01] See "over", swap inputs
Xor
[===] Merge -> Xor
ZCompose
[+++] Composite - Merge (tick "perform Depth Merge")

Transform
----------
AutoAlign
[!!!]
CameraShake
[+++] Transform - Camera Shake
CornerPin
[+++] Warp - Corner Positioner
Crop
[W01] Transform - Crop
[C01] Shake's "Window" behaves like Fusion's Crop but it's the same with different values anyways
Fit
[W01] Transform - Letterbox (choose "letterbox" or "pan and scan" depending on source material)
Flip
[W01] Transform - Transform (Flip Vertically)
Flop
[W01] Transform - Transform (Flip Horizontally)
MatchMove
[===] Tracking - Tracker
Move2D
[---] Transform - Transform
Move3D
[===] Transform - DVE
Orient
[W01] Krokodove - Canvas
Pan
[W01] Transform - Transform
Resize
[===] Transform - Resize
Rotate
[W01] Transform - Transform
Scale
[W01] Transform - Transform
Scroll
[W01] Transform - Transform (activate "Wrap")
SetDOD
[!!!]
[C01] No DODs in Fusion
Shear
[W01] restrict the four corners of a cornerpin via expression and good to go [or] use the custom tool
Stabilize
[===] Tracking - Tracker
SmoothCam
[!!!]
Tracker
[===] Tracking - Tracker
Viewport
[!!!]
[C01] No Infinite Workspace in Fusion
Window
[===] Transform - Crop
Zoom
[===] Transform - Scale

Warp
----------
DisplaceX
[!!!]
IDisplace
[+++] Warp - Displace
LensWarp
[!!!]
Morpher
[W01] See "Warper" plus Dissolve
PinCushion
[!!!]
Randomize
[W01] Noise plus Displace
Turbulate
[!!!]
Twirl
[W01] Blur - Directional Blur (Radial) tweak the angle
Warper
[W01] Warp - Grid Warp
[C01] Shake has a Shape Warper
WarpX
[!!!]

Other
----------
AddBorders
[W01] Transform - Crop (tick "keep centered")
AddShadow
[===] Effect - Shadow (Output "Image with shadow")
Bytes
[===] Miscellaneous->Change Depth
[C01] Bit Depth is switched in individual nodes in Fusion
Cache
[!!!]
[C01] Every Tool in Fusion can be cached to disk
DeInterlace
[===] Miscellaneous - Fields
DropShadow
[===] Effect - Shadow (Output "Shadow only")
Field
[===] Miscellaneous - Fields (strip field1/2)
Histogram
[!!!]
[C01] Fusion can display histograms in the viewer
[C02] color->color corrector histogram
PixelAnalyzer
[!!!]
PlotScanline
[!!!]
Select
[!!!]
SwapFields
[===] Miscellaneous - Fields (tick "Reverse Field dominance")
Tile
[W01] SecondMan has made a macro for this you can download below
[W02] Daniel Koch has made a macro for this you can download below
TimeX
[+++] Miscellaneous - Time Speed / Time Stretcher
TLCalibrate
[!!!]
Transition
[!!!]


---------
regards,
FR

[SalaTar]

Primatte
[===]
Primatte

[force_redo]

SalaTar, on Apr 18 2006, 11:52 PM, said:

Primatte
[===]
Primatte

<{POST_SNAPBACK}>

Yes, if you pay for it. Comes free with Shake as far as I remember...

ETA: I put in a comment that it's availabe as plugin

FR

[shaily]

fusion has quite a bit missing in ur list!

shaily.

[SecondMan]

Hi,


Went through your list and have a few questions...

Could you, for the tools that have no counterpart in Fusion, explain a bit more what they do? For example these here for starters:

- Clamp
- HueCurves
- LookupHLS
- LookupHSV
- MDiv
- MMult
- ApplyFilter
- IBlur, IDefocus, I... etc
- PercentBlur
- ZDefocus (I have a hunch what this is though )
- DepthKey/Slice
- Addmix
- Constraint
- ISubA
- KeyMix
- Multilayer (probably a merge with mult. inputs?)
- SwitchMatte
- AutoAlign
- Fit
- DisplaceX
- LensWarp
- PinCushion
- Turbulate
- Shape Warper
- WarpX
- Field
- PlotScanline
- Tile
- TLCalibrate


Also, for the tools you feel are inferior in Fusion, could you specify why, and explain a few of the workarounds (the ones using Custom Filter/Custom Tool)?

A few things that you might want to change in your list:

Rand
[===] Film -> Grain (I think)
Invert
[===] Boolean Negative

Is AddShadow or DropShadow not the same as Effect -> Shadow?

PixelAnalyser
[===] Probe ? <- not a node, is a modifier...

Transition
[===] Dissolve?

And lastly, for a few tools I've guessed how to recreate them in Fusion and I've made some macros for them. Feel free to comment...

Cheers! Great work!

Attached Files

•  SM_Checker.setting.txt   4.57K   113 downloads
•  SM_ColorReplace.setting.txt   6.75K   114 downloads
•  SM_ContrastLum.setting.txt   2.04K   65 downloads
•  SM_Pixelize.setting.txt   3.1K   92 downloads
•  SM_SetBGColor.setting.txt   3.01K   73 downloads

[force_redo]

SecondMan, on Apr 19 2006, 04:26 PM, said:

Hi,
Went through your list and have a few questions...

Well, first of all: Thanks a lot for contributing. I think eyeon should probably think of
having a wiki on their page for projects like this. At least it would be easier to edit...

Quote

Could you, for the tools that have no counterpart in Fusion, explain a bit more what they do? For example these here for starters:

Good idea. Otherwise we won't get very far...
One thing one has to understand about shake is that many, many tools in shake are redundand.
You might end up having three different tools that do exactly the same in some cases.
Although this sounds strange, it is quite intuitive and makes the comps easy to overlook.
Furthermore I should say that I just listed all the shake nodes, regardless whether or not they are useful tools and need a representation in Fusion
Here we go:

- Clamp

Clamps all the colours in an image between a "low value" and a "high value". So, if a pixel value is lower than "low value" it will be set to "low value" and if it's higher than "high value" it will be set to "high value". Like some sort of limiter without rolloff.

- HueCurves

That's a tough one to explain, but a very useful tool. You can alter a pixels hue, saturation and luminance or supress a certain hue depending on it's original hue value.
Basically you have horizontal lines for all the individual tasks (hue, luminance, sat,
surpress) that range from 0 to 1. So you can pick up an individual hue on it and change it.

- LookupHLS

Same as Color - Color Curves in fusion, but the curves aren't representing RGB, but rather HLS

- LookupHSV

Same again, but the curves represent HSV

- MDiv

Simply unpremultiply. RGB / A

- MMult

Premultiply. RGB * A

- ApplyFilter

Some leftover for compatibility reasons, I believe. As far as I remember you can do simpe things like "blur" with it, but I might be wrong. I think it's from back in the day, when there wasn't a dedicated "blur" node.

- IBlur, IDefocus, I... etc

These are interesting ones. What they do is basically what the same node without the "I" does, but the strength of the filter is depending on a control image (matte). So, an IBlur with the setting 10 pixels will blur the image 10 pixels only where the comtrol image is 1. If it's .5 it will blur it 5 pixels etc.
Many people confuse this with a normal Blur with a mask fed into it, but it's fundamentally different, since this will give you a 10 pixels blurred image that is comped over the original image with the opacity of the mask. So, if the mask is .5, you have a 50/50 mix of an unblurred and a 10 pixels blurred image.
Deep Blur is doing a similar thing (or maybe the same?) for blurs

- PercentBlur

This is the same as a normal Blur, but the values are dependend on the image size. So, a blur with the value x looks the same on a Pal and a 2K in relation to the individual image size.

- ZDefocus (I have a hunch what this is though )

Like Deep Blur, but a defocus rather than a blur. (you guessed that, right?)

- DepthKey/Slice

Good question. I believe if you imagine a Z channel as an image they would react like a luma key and luma slice. I'm not completely sure, never used them...

- Addmix

Another one I never use. I think it's like a merge but you get two curves with which you control the opacity of FG and BG at each given alpha value individually. Not sure.

- Constraint

And another one. No idea. Not at all, sorry. I probably missed something out in all my career...

- ISubA

An absolute subtraction. Mathematically |a-b| or fabs(a-. Makes the result of an subtraction positive in case it's negative. |0.3-0.45|=0.15

- KeyMix

Has three inputs: FG, BG, A. Comps FG over BG with the opacity of A. Somebody made a macro for Fusion to do just that, I just forgot where I got it from (maybe this forum?)

- Multilayer (probably a merge with mult. inputs?)

Exactly!

- SwitchMatte

Copies one channel of RGBA of a second input into the first input with the option to premultiply.

- AutoAlign

This is based on motion estimation. I think there is a similar tool in the new Furnace. The Idea is that you feed it an image sequence of, let's say, a pan. It will track it automatically and stitch the individual frames together.

- Fit

Like a resize, but maintains the Aspect Ratio and letterboxes the image vertically or
horizontally if needed.

- DisplaceX

Like a displace, but you can put in expressions.

- LensWarp

You can draw some splines along lens distorted features in your image and it tries to calculate the character of this lens so you can undistort it or distort another element in the same way

- PinCushion

Well, errm, how to describe a PinCushion? Think of it as a very simple lens distorsion
tool...

- Turbulate

Like a displace when you use some sine and cosine inputs. Distorts the image in a "wavy" way. Think of water or a flag in the wind...

- Shape Warper

A warper that doesn't use a grid as source/destination information, but splines. Like good old cineon or Elastic Reality. Many people swear by it, I prefer Grid Warps, though...

- WarpX

Displace your image purely by expressions. No control image. If you have too much time or a brain like Einstein it might come in handy

- Field

Has something to do with Interlace, but I don't do video, so I never used it...

- PlotScanline

plots a graph of the RGB values of a specific line of pixels.

- Tile

Duplicates the image x * y times and puts them next to each other. Like the Duplicate3D in Fusion but in 2D...

- TLCalibrate

This is a tool to calibrate the monitor with Truelight. Never used it, since all the facilities I worked for had their own calibration tools.

Quote

Also, for the tools you feel are inferior in Fusion, could you specify why, and explain a few of the workarounds (the ones using Custom Filter/Custom Tool)?

Phew. That's a lot. I'll do that in my next post.

Quote

A few things that you might want to change in your list:

Rand
[===] Film -> Grain (I think)

Not quite. Rand is an Image creator tool that generates a plate full of noise. But I'll add your proposal to the workarounds

Quote

Invert
[===] Boolean Negative

Spot on! Brilliant!

Quote

Is AddShadow or DropShadow not the same as Effect -> Shadow?

It is! Absolutely! Another hit! I'll put that in, thanks a lot. (I didn't expect that another tool would have such functionality that one can simply recreate... )

Quote

PixelAnalyser
[===] Probe ? <- not a node, is a modifier...

Errm... Don't know. I have to read up what a modifier is, first...

Quote

Transition
[===] Dissolve?

Not quite. It's actually a dissolve that also retimes the second input accordingly. Let's say you have two clips of 100 frames each and put a value of 50 in. This will shift your second clip by 50 frames and then dissolves between them. (I'm not saying this is an important tool)

Quote

And lastly, for a few tools I've guessed how to recreate them in Fusion and I've made some macros for them. Feel free to comment...

WOW! This is brilliant! (I'm quite good with macros in shake, but I haven't tried it in fusion yet)

Here's the statistics: Three hits, two misses

Checker: Done. Amazingly it would even get a [+++] since you can't rotate the Shake one

ColorReplace: Check! Only it should preserve the alpha channel of the input instead of replacing it. Doesn't need the option to premultiply therefore.

ContrastLum: Different. The Shake one is like a normal contrast, but on a luminance model rather than an RGB contrast. It's actually the equivalent of sandwitching a BrightnessContrast bewteen two Color Space tools and changing the contrast of the green channel. Will put that in as a workaround. (Just dawned on me)

Pixelize: Another hit.

SetBGColor: This is something you won't be able to recreate in Fusion. It's the colour that's outside one's DOD. No DODs -> no need for SetBGColor...

Quote

Cheers! Great work!

Well, I give that compliment straight back!
Thanks heaps,
FR

[force_redo]

Ok, second part:

SecondMan, on Apr 19 2006, 04:26 PM, said:

Also, for the tools you feel are inferior in Fusion, could you specify why, and explain a few of the workarounds (the ones using Custom Filter/Custom Tool)?

Herewe go again:

RotoShape
[---] Mask - Bspline/Polygon

The RotoShape in Shake can have multiple shapes in one node and add/subtract them and parent them.
Furthermore there's this issue we discussed here:
http://www.pigsfly.c...?showtopic=1660
... complicated, you know?

DilateErode
[---] Filter - Erode / Dilate

The Shake one has a "soft" parameter, so if you dilate something heavily you still get somewhat smooth edges instead of squares.
It is different from a blur->expand, though.

EdgeDetect
[---] Filter - Filter (Sobel / Laplacian)

Shake's has an "strength" parameter and a babu filter which can have a filter angle, so it only detects edges from an angle. To fake rim lights for instance.

Emboss
[---] Filter - Filter (Relief)

The filter angle seems to change in 45 degrees steps only. The shake one can have any angle...

FilmGrain
[---] Film - Grain

The FilmGrain tool has an option to analyse the grain on a plate automatically and tries to recreate it. Furthermore, I believe it has some presets for common stock material (not quite sure)

Move2D
[---] Transform - Transform

Move2D has the "shearX/Y" parameter which basically stretches your image to a rhomboid/parallelogram for isometric perspective.

Set
[W01] Miscellaneous - Custom Tool

Simple tool. Just sets all the pixels in a defined channel to a certain value

SetAlpha
[W01] Miscellaneous - Custom Tool

Same as above, but you can only set the Alpha channel

If I missed one you're interested in, drop me a line.

FR

[shaily]

i believe u can replicate almost every node from shake in fusion with a single one or a combination.

perhaps u wont mind pointing what fusion has and shakes missing!(i know thats not the objective of this post )


disregard


shaily.

[force_redo]

shaily, on Apr 20 2006, 06:49 AM, said:

i believe u can replicate almost every node from shake in fusion with a single one or a combination

I agree, and to clarify how, I made up this guide.

Quote

perhaps u wont mind pointing what fusion has and shakes missing!(i know thats not the objective of this post )

Exactly. It's not the objectuve of this post. Maybe someone somewhere writes a Fusion -> Shake guide. He will stumble across all those things.
Obviously there are things Fusion can do that Shake can't and vice versa. I'm no ideologist, I always try to choose the best tool for a job...

FR

[dts74]

Hmm is there an "tracker" in Fusion like the SmoothCam ?
If so where?

Stabilize
[===] Tracking - Tracker
SmoothCam
Tracker
[===] Tracking - Tracker

SmoothCam smooths or stabilizees motion in "one-klick" (hmm..not completely true)it automatically identifies trackable regions in an image.

[force_redo]

dts74, on Apr 20 2006, 11:23 AM, said:

SmoothCam smooths or stabilizees motion in "one-klick" (hmm..not completely true)it automatically identifies trackable regions in an image.

Oops, sorry, you're absolutely right. SmoothCam is based on Motion Estimation. I just left it out. The second "[===] Tracking - Tracker" you quote referrs to the Shake tracker, not SmoothCam. I simply overlooked it.

Thanks for pointing that out,
FR

[dts74]

And super thanks for doing this!!!
I'm also an ol'Shake user broadening my Software streangth..and also
were I work Fusion fits more natural in the PipeLine
Once again thanks!

[SecondMan]

Hi again,


Here's a small update on some things. Extremely useful, this exercise, made me run into some strange issues in Fusion (on their way to tech@eyeonline ;-)) and also forces to think about image processing in a slightly different way. Am enjoying this.

Anyway, here goes:

LookupHLS etc...

[W01]You could simply convert the Color Space and use the CC tool in between them to do that...

MDiv

[W01]Custom Tool

MMult

[W01] Custom Tool

ISubA

[W01] Custom Tool


Will put the above in a small macro later...

PercentBlur

Made another macro. PercentBlur is not the same as Krokodove's Blur in Space though, that is simply conventional (Fusion) blurring in different color spaces.

ContrastLum

Read your description and that's exactly what my macro should do actually... could you verify that?

Xor

[===] Merge -> Xor

And some more macro's. Adjusted the ColorReplace as per your comment and added some more. Some of these are a bit of a hack and not necessarily the fastest/cleanest solutions. Will improve on them as we go along and learn...

Cheers!

Attached Files

•  SM_Rand.setting.txt   5.09K   76 downloads
•  SM_PercentBlur.setting.txt   3.85K   66 downloads
•  SM_IBlur.setting.txt   2.75K   81 downloads
•  SM_ColorReplace.setting.txt   7.28K   76 downloads
•  SM_Clamp.setting.txt   4.83K   84 downloads

[SecondMan]

Am working on the other stuff.

And here's an update on the checker tool with some more options.

Cheers.

Attached Files

•  SM_CheckerPlus.setting.txt   11.22K   76 downloads

[dts74]

Thanks SecondMan!

Thoght I would chip in with some smallish macros..
mDiv
mMult

And her's a pic showing it on use i fusion, Left without (and without pre divide/postmultiply options, they would have to be used on bothcolor nodes to provide correct result) and Right the Shake way...take your pick the fg element is premultiplied semi transp fantastic spheare

Oh and they both have the exactly the same cc corrections, and that black edgeon the spheare is from the render..default light

Attached Files

•  mDivmMult.jpg   87.21K   214 downloads
•  mDiv.txt   1.41K   103 downloads
•  mMult.txt   2.17K   72 downloads