[vfx] work notes 9

USD

• USD is about layering, different from linear alembic pipeline

material x 

• material x is for cross compatibility between vendors

maya export, import uncheck preserve reference

• so the export, imported object won't attach camera reference, for example, or there will be double camera in the scene

adjust projection content translation

• need to adjust the projection camera translation, not the light

how to make vray lights not visible in reflection

• turn effect reflection off on the lights

people interacting with none existing cg creatures

• green clothed man, can hold a dragon plastic head
• don't act to something empty, any reference is good

maya preferences

• delete or rename preferences, to go back to default maya preferences

blue or green screen shots check roto

• compare final comp to the blue or green screen plate, to check and review the roto

misc

• every shot has a neutral grade
• reflection attenuation - reflection intensity decreases farther down the contact point
• rgb yellow is 100 red, 100 green, 0 blue
• iso mask - isolation rgb mask
• persp, top, right, front camera is in maya outliner
• insert image file bug, insert single frame first, then check box, change to image sequence