Rendering & Lighting

Using flipbook

Good for fast preview animation

• Exporting as avi = large file > compressed via Handbrake

• MPlay, export > ffmpeg > as mp4

IPR render

Orange lighting exercise

• Noise bumps- In Principled Shader > Displacement > Noise Displacement

• PBR renders

• environment light

  • unlink sunlight

  • change to Area, normalize, back to sun

  • change sun angle

• Shadow noise

  • increase min/max ray samples to 16/32

• Importance of EXR

Notes

• Using separate mantra nodes for test and finder render

• force object & exclude object

• tiled renders, and restitching them

Using img network

• nodes: bright, over, color

• resizing flat background

Lights

point lights - good for bulb

disk light highlights

Mantra

mind your samples

reflect limit 10 - 15 (glass), turn down if not reflecting

DOF in Compositing, not in render

Motion Blur in renderer

Using commandline rendering script - rename version, mantranode, and hip file

Optimizing render times

Tiled render - Quick render by reducing tile to 2, and specify tile index

🔦 Lighting

Lights
sunlight & keylight

distant - cheaper, good for blocking

sun - blurred shadow

Spotlight - not so good

attenuation, active radius - good for instancing lights

Light bank

Data tree

Mantra > Objects > Headlight Creation

Simulating warm and cool lights to create dimensions

Lighting linking - for more controls

Instancing lights

instancing - pack geometry - does not inherit all details

attribcreate

you cannot see instances till you render it