Paints a sky-with-key-lights equirectangular environment into a
width × height canvas, intended as input to
IBL.setEnvironmentImage.
Layout (top → bottom in equirect v):
sky band : cool blue zenith fading to a warm horizon.
horizon band : warm tan / peach — the dominant reflection
colour for smooth metals and glass.
ground band : muted brown fading to a darker nadir.
Three soft key lights at longitudes 0°, 120°, 240° sit ~30° above
the horizon (warm, cool, amber tints), giving smooth-metal
reflections recognisable bright spots without the architectural
detail of paintStudio.
Paints a sky-with-key-lights equirectangular environment into a
width × heightcanvas, intended as input toIBL.setEnvironmentImage.Layout (top → bottom in equirect v):
Three soft key lights at longitudes 0°, 120°, 240° sit ~30° above the horizon (warm, cool, amber tints), giving smooth-metal reflections recognisable bright spots without the architectural detail of paintStudio.