Image Based Lighting tutorial
"Image-based lighting (IBL) is the process of
illuminating scenes and objects (real or synthetic)
with images of light from the real world" Paul Debevec, USC Institute for Creative Technologies
Today we refreshed our memories, about how to light a scene in Maya. First off, we used IBL lighting. Here's a sphere with an .hdr (high bit depth image) that contains colour and brightness information across a very wide dynamic range.
We'll be using lighting techniques in our Going Live Jeremy Kyle toys animation - so today we used the room created by Sang and set up IBL, point lights, area lights and directional lights.
IBL lighting and room set
IBL lighting sphere
Lighting build ups - starting with shadow lighting. The green tinge is taken from the grass, which is 'outside' on an image back plate.
Build up using point light
Adjusting levels
Without the green shadows
Introducing area light outside the window
and a directional light for the sun
Red outline shows which selection of the image I want to render
Wire frame model, when using an IBR render view setting
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