material

• Hardware notes: Keyshot use CPU to render, and the speed increase linearly according to core count:
  • https://www.pugetsystems.com/labs/articles/Keyshot-Multi-Core-Performance-789/

• Basic Workflow
  1. Import Geo
  2. assign material (to research, apply material by scripts)
  3. assign HDRI lighting
  4. tune lighting and rendering setting
  5. render

• Use label on the applied material, with color and bump texture option, you will get a good logo look on your existing material ready model
  • tutorial: https://www.youtube.com/watch?v=LCsmR23YVVo
  • advanced tutorial (showing your material < label < label material type of combon): https://www.youtube.com/watch?v=Lu1xTYYC-Mg

• duplicate a copy, and right click and choose material > change material type
  • https://www.youtube.com/watch?v=z3T1kMttlz0

To animate color

• right click on the color attribute and and choose animation and set it up
  • https://www.youtube.com/watch?v=9cjP6V_2mxA

To animate visibility (not opacity): so no need post compositing for already confirmed animation

• animation wizard > Fade > choose parts to fade; or choose parts > right click > animation > Fade. done
  • https://www.youtube.com/watch?v=ferGI5Pkid8

• click the edit pen icon in the final render viewer:
  • https://www.youtube.com/watch?v=EYL2u-Q6wY8

• click on environment HDRI to open HDRI edit, and create new HDRI with dark color, then use pin to create custom light shape to create desired reflection
  • https://www.youtube.com/watch?v=nh1aiursXz8

Cloudy Material / Translucent material / semi-transparent materail (like paper, thin plasic)

• render setting:
  • self shadow: on; global illumination: on; ground illumination: on;
• material setting:
  • Advance material type >
    • Specular transmission (amount of refraction related) setting to control transparency.
    • Specular color (reflection color cast, Black = no color cast) to control look casting color and strength of reflectivity
    • Roughness of Transmission: control internal structure roughness, basically disturb the refraction and give a blur look of refraction - “cloudiness” look
    • Roughness: control the surface roughness, basically disturb the reflection and give a blur look of environment reflection - “Glossy or matte” look
    • Diffuse color: color of object itself and strength of color compared to its reflection/specular color

• tut: https://www.youtube.com/watch?v=heyF-wVVAdo

Back-lit material

• create a light object with Point Light Diffuse Material
  • Power and Color: control light intensity

• add glow post-effect:
  • Camera > Effect > Bloom (Glow) to add glow boost intensity and radius (highlight part blur)

Glass material

• Glass (Solid) Grey: (type: Basic > Glass Solid)
  • texture option = only Refractive Index + Roughness
• (type: Advanced > Dielectric) : allow color ramp option mapping to color
  • texture option = Transmission + Transparency distance + roughness + bump + opacity)
  • https://www.youtube.com/watch?v=Np-3e_TthF0

• to do list
  • update geometry
  • export material linking list
  • automated shot building script and tool
  • render layer control
  • element/material variation and compositing workflow

• to do list
  • light setups
  • reflection tips

• animated environment light
  • as environment rotation can't be animated, you have to animate your model and camera together
    • ref: https://www.keyshot.com/2012/how-to-create-animate-lighting-in-keyshot/

• animated Emissive geo light
  1. Insert a plane or sphere and use a translate animation to move across the model.
  2. Apply an Emissive material to the sphere/plane, increasing the intensity and disable ‘Visible to Camera’ in the Advanced settings.
  3. In the Project, Setting tab, enable ‘Global Illumination’.

• lighting tutorial: https://www.youtube.com/watch?v=upSNlInkSA8
• jewelry lighting: https://www.youtube.com/watch?v=-oduJJ0Gq84
• iphone lighting: https://www.youtube.com/watch?v=XSLQneVyZ4k
• bottle lighting: https://www.youtube.com/watch?v=UHlPy61SIwY

• to do list
  • quick management tool for show and hide geo parts

• scripts to do
  • copy position tool

• to do

• animation and render advance feature: https://www.youtube.com/watch?v=y49WyMct9CA

• https://keyshot.com/scripting/doc/6.0/quickstart.html

• keyshot cloud, for tons of material, back plate, environment hdri, textures.
  • https://cloud.keyshot.com
• For cloud resource, use web browser and click download to get special link for the download
  • then, use cmd line to bin and run code like this (free login acc required)

    keyshot_cloud_handler.exe keyshotcloud://get?eyJpZCI6MzQ0OCwidHlwZSI6MH0%3D

• official learning site: https://www.keyshot.com/learning/
• https://www.youtube.com/user/KeyShot3D/videos
• https://www.youtube.com/user/5ar666/videos

• Problem: glass render with alpha channel checked, but glass is not transparent in png, still with background behind it
  • Solution 1: use glass material with refraction checked on, not (no solid glass, or dielectric or transparent plastic) “because this is the only material rendering with an “alpha channel”
  • Solution 2: double render, one with your old glass setup, one with your simple glass material just for the alpha channel, then combine
  • Solution 3: render what you have with backplate as RGB 0-255-0, so perfect green screen, then key out green screen in nuke something like that, it may affect other transparent color as well though
  • ref:
    • https://forum.keyshot.com/index.php?PHPSESSID=5e1d7fc7becd65e7730570fc545d2c55&topic=25995.0
    • https://forum.keyshot.com/index.php?topic=5613.0
    • double render method: https://forum.keyshot.com/index.php?topic=5613.15
    • offical guide on transparent bg: https://blog.keyshot.com/alpha-transparent-backgrounds-keyshot
    • a video explain on reason behind that limit in keyshot (you either composite or use other render): ( Rendering Transparent Objects in KeyShot ) https://www.youtube.com/watch?v=uhud-v4LYoA
      • composite guide: https://www.youtube.com/watch?v=YoDQ3F9S6s4&t=0s