Environment and Light Plugins for LightWave 3D
-A Sunsky is basically a procedural texture for Texture Environment, with more components like lights in the last versions. -Gets the rotation angles of the selected Light and simulates a daylight sky. -The Lightwave "Sun Spot" motion modifier can be applied to the light for accurate sun position/rotation
Rayleigh scattering,for mapping a disk on the sky background texture,
Aerosol (water + dust) attenuation,
Attenuation due to ozone absorption,
Attenuation due to mixed gases absorption,
Attenuation due to water vapor absorption,
Additions in Sunsky 96 and Sunsky 11:-Two different sky models the well-known 'Preetham' and the new 'Hosek & Wilkie' model,
a significant improvement for better sunset, high atmospheric turbidity and
an "Albedo" ground influence, both sky and sun radiances are modified. -Sunsky Environment,
a 'more accessible' alternative to the Sunsky Texture, for sky background. -SK Sun Light,
distant light with soft shadows adjustable with Angle parameter,
interactive with the Environment/Texture background and the SK Sky Light.
Sun Light has its own Sun Editing parameters (HSV), separated from Sky.
can be positionned manually or respecting Time Zone, directly with City Presets,
or with Longitude, latitude and GMT time zone,
Day, Month, Year and animatable Time (Decimal).
-SK Sky Light,
hemispherical sky radiance with soft shadows, interactive with the Environment/Texture background and the SK Sun Light.
with Sky Editing parameters (HSV).Final Gather compared to Sky Light.-Sunsky Atmosphere,
a volumetric plugin for adding some colored sun flare in the image.
varying with the sun position and angle of view, Mie scattering, Rayleigh scattering,
Light Inscatter, Light Attenuation (100% no effect),
View Angle Factor (100% full front of sun effect) and Distance Multiplier.
Affects objects and/or background horizon, with Horizon Haze and Max angle.Sunsky Lights without and with Sunsky Atmosphere.
Sun Light and GI, Sun and Sky Light with GI.-Sunsky Motion,
correct placement of the SK Sun Light for LW Lens flare. All of these exterior daylight components can be added with the Add Sunsky command (Lscript).-SK Portal Light,
interactive with the Environment/Texture background and the SK Sun Light.
same light than Sky Light but can be placed and sized on windows or doors
for more efficient interior lighting and sampling, less noise and smoother shadows.Presets can be saved for Environment, Texture and Lights, knowing that a major part
of the parameters and options of Sunsky are globals. The global Sunsky parameters should be adjusted for background environment first,
then the Light Intensity can be used for increasing/decreasing Sunsky lighting
without affecting the other Sunsky components.
'A Practical Analytic Model for Daylight'
by A. J. Preetham, Peter Shirley and Brian Smits.
'Colour Rendering of Spectra' by John Walker,
RGB conversion modified by Andrew J. S. Hamilton.
'An Analytic Model for Full Spectral Sky-Dome Radiance'
by Lukas Hosek and Alexander Wilkie (see readme file).
These plugins are freeware but donations are appreciated, thanks.
For Lightwave 8.5+ no Lights:
Download (Win32) Sunsky_x32.zip
Download (Win64) Sunsky_x64.zip
Download (Mac UB 32 and 64-bit) Sunsky_UB.zip
For Lightwave 9.6+ with Lights:
Download (Win32) Sunsky96_x32.zip
Download (Win64) Sunsky96_x64.zip
Download (Mac UB 32 and 64-bit) Sunsky96_UB.zip
For Lightwave 11.0+ with LW Unified Sampling:
Download (Win32) Sunsky11_x32.zip
Download (Win64) Sunsky11_x64.zip
Download (Mac UB 32 and 64-bit) Sunsky11_UB.zip
Add Sunsky, Lscript: