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Compositing
Vfx Jet in AE
Drag the 3 exported EXR sequences
Select jet layer → R click, interpret footage → Main → assume FPS to 24
→ Color Management: : Linear light: On (so 16 bit light is also interpret)
R click the jet layer again, interpret footage → Remember Interpretation
→ Select another 2 layers → Apply Interpretation
Drag the jet layer to composition, set duration frame as 191 (always need to add 1extra frame in AE timeline), drag another 2 layers
Select the layers, go to 1st F, click [ to snap the layer timeline starts on 1F instead of 0F (hold Ctrl+L click to swap between time and frame as the blue reading below:
Rename the Jet layer as Jet Beauty,
duplicate (Ctrl D), name as Jet GI → apply EXtractoR on this layer (to separeate passes on multichannel EXR file)
→ double click any space area in the effect menu:
It will open the ExtractoR box, select the layers: GI
Open the 8bpc icon, which opens project setting
In Color, Working Space : sRGB IEC61966-2.1, tick Linearize Working Space
(should turn to 32 bit?)
Back to EXtractoR menu, tick UnMult (improve the black edge of object)
Repeat the same step of duplicating Jet GI layer with Lighthing passes, change mode (in layer menu) from Normal to Add
Add the remained passes by duplicaited the layer (Reflection, Specular, Refraction, Self illumination) all are Add mode
Add Ambient Occlusion layer (AO), but mode as multiply,
Add Z-Depth layer, mode as Normal
(Remark: ExtractoR in Z depth needs to select all RGB channels as Z (coz Z depth has no color information for reference)
Leave all layer eyes on, except Z depth layer
Create a new folder called Comps in whole maya project folder, save AE project with version number (i.e. v002)
Check if the specular, reflection and GI layers individiually. If any of them is completely black, usually it’s the problems of
1.glossiness set as 1while no HDR image inside,
2.Vray amount set to 0,
3.black matte place in the reflection channel
Now see the result, the turotrial gonna modify glass reflection and camera position, save as version 3 when back to maya to modify:
Color Correction:
Add adjustment layer, name as Color Correction
Older version Vray can export LUT cube file through Global → Save
to be used in AE (Apply Color LUT effect):
By doing correction manually:
Add Curves effect, make slight S shape on RGB channel and Red channel as follow:
Add Lumetric color → Basic, temperature 90, shadows 40, contrast 40
Add HDR Highlight Compression (make HDR to LDR, to avoid the adjusted contrast and exposure causing clipping), set as 40%
Go to Jet Refraction layer, add HDR comperssion, set as 85%
Create a new adjustment layer, name as Vignette, add CC Vignette effect
Modify the smoke:
Rename the layer as smoke matte
Add adjustment layer, name as smoke, place under matte layer, change it to “alpha matte smoke matte”
→
Add Curves effect, drag as follow:
Add Turbulent Displace effect → Amount 100, Complexity 3, in Evolution stopwatch , hold Alt, type expression as time * 1000
Add Fractal Noise →
Fractal type: Dynamic ;
Transform → Scale: 50
Evolution → Blending mod: Multiply, Opacity 20
Stopwatch Evolution again, expression as “time * 2000
Reduce Smoke layer opacity to 50%
Modify Depth of field :
Put the Jet beauty layer (reference layer) on top of Z-Depth layer, and invisible it
Duplicate the Z_depth later, R click (Ctrl C) on duplciated laer to precompose Z-Depth layer → Move all attributes into new composition
→ Open the precomp layer
→ Add a new Solid (as a BG) → use dropper in Color column, take color of the tail of the jet wing
→ Drag the solid layer under the original layer
(rename the precomp layer as Jet Z_depth DOF)
Back to main layers → add new adjustment layer, name as depth of field → place it below the precomp layer
→
Add Camera Lens Blur Effect on it
→ choose precomp DOF layer in Blur Map, Layer), change Source to Effect and Mask
→ Make Blur radius as 100 → Tick Repeat Edge Pixel in Highlight column
P.S. reduce threshold to almost 0 in Highlights column solve the interlance problem on the object created from Vray render. Don’t know why tough
Turn on DOF precomp layer, add Curve effect on it, make a curve like below (aim is to make front part of jet black (in focus), but not having too sharp edge between black and white transition (grey zone more gradient effect)
Back to Camera Lens Blur menu in Depth of Field layer, Blur Focal distance as 0.05 (increase it change the focus area from centre) →Drop the Blur radius back to normal value (e.g. 5) → rename this blur effect as DoF
Add 2nd Camera lens blur effect on it, set Blur radius to 0.2 (this effect has no blur focal distance adjusted, so slight blur effect apply but overlapping a bit on primary lens blur effect)
Open precomp layer again, check if the object still has clear black (in focus area, here is the front of the jet) in beginning till the end on timeline. If no, apply a Cruve effect with keyframe on the BG (grey solid layer). Bear in mind the BG is always white (out of focus)
Replace modified render footages from maya to existing AE project:
Choose the footage in menu → R click, Replace footage → File → select the new footage
Improve Atmosphere:
Turn off all layers of the Jets, except for GI and Depth of Field→ Apply Set Matte Effect on GI layer
→ Take Matte from layer → 6. Jet Z_Depth; Effects and Mask; Use for Matte: Luminance, Tick Invert Matte (so the tail of jet is more faded, instead of the head)
Visible all jet layers again, Copy the Set Matte effect created and paste in all of the jet layers, except Z_depth layer (i.e. Lighting, Reflection, Specular, Refraction, Self illumination, Occlusion)
Place Curve effect on Z_depth layer, to make front of jet darker
Duplicate GI layer, name as Jet Matte → place it under GI layer,
In the Jet Matter layer, delete its Set Matte effect → in its ExtractorR menu, change all RGB layers as Alpha (A)
Apply Fill Effect to the matte layer, leave the color as red there
Duplicate the Sky, rename as Sky Blur, place under Jet Matte → Change its TirkMat to Alpha Matte to Jet Matte → Solo its layer (so the background of sky is shown on the jet now) →
Add Fast Box Blur effect on Sky Blur layer → change Blur Radius to 80
Glow Effect on illumination layers:
Solo Self illumination layer, add Glow effect on → Threshold 25% →
Reduce opacity (Shot cut T) of Illumination layer to 75%
Add Bloom effect to make more cinematic look (can do in Vray too 1:30:30):
Duplicate jet Beauty layer, rename as Beauty Bloom → solo the layer →
Add Set Matte effect → Use for Matte: Luminance →
Add Curve Effect:
Add Glow Effect → Threshold 50%; Radius: 30
Back to main comp layer, set Jet Bloom layer mode to Screen (control light clipping)
Add Camera Shake:
Layer → New → Null, rename as Camera Shake
→ Add 2 times of Slider Control Effects, rename 1st one as Frequency, 2nd one as Intenisty (used in Position)
→ Duplicate those 2 effects in the layer, rename them as frequency rotation and intensity rotation (used in Rotation)
→ Select all the layers (except vignette and color correction) parent link under the Camera shake
Open camera shake position layer, Alt click on stopwatch, type expression as Wiggle, drag the icon to slider of Frequency, and then Intensity, add , between 2 dragging
Set Frequency slider value as 2, Intensity as 10 (the frame should be out of the edge, scale up the layer to 105% something should be needed)
Open the Rotation parameter of Camera shake layer this time, repeat the same steps, Frequency value as 0.5 (i.e. 2 sec), intesity as 1 (very subtle)
Since the shake affect all jets, sky and smokes layers child under, turn on motion blur switch for all those layers
Add new adjustment layer, name as Grain → place under color correction layer but above vignette → add Add Grain effect
→ Viewing mode: Final Output → intensity: 0.50, size: 0.1
Final Render:
Go back to Maya, change render setting label as v004. go t oVray tab, change max render time to 1 min
Only enable Jet layer eye and clapper icon, so only jet layer is rendered
Back to AE, place the jet Bloom layer between Depth of Field and Jet Z-Depth layer
→ Replace V4 Jet footage → render in Adobe encoder
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