Physical sky with a matching sun lamp
In your harnessBlender toolMIT
Build a physical sky world and a sun lamp whose direction matches the sky's sun exactly, from one elevation and compass bearing, with the sky's sun disc off so the lamp gives sharp direct light. Use it for exteriors, architecture and time-of-day studies.
What it takes and gives
- Operator
- baltor.world_sky_sun
- Parameters
- elevation, azimuth, sun_strength, sun_angle, world_strength, sky_sun_disc, air_density, haze
- Result
- A world named Baltor Sky set as the scene world, and a sun lamp named Baltor Sky Sun.
- Blender
- 4.2 or later
- Axes
- Blender Z up, -Y forward
- Units
- metres
Limits. The bearing convention (clockwise from +Y, as the Sky Texture sun rotation) was measured on Blender 5.2.1 only. Uses the multiple scattering sky where Blender offers it and the Nishita sky otherwise; their colours differ. Lamp strength is a free parameter, not derived from the sky model, so sky and sun brightness are balanced by eye. Rendered here with Cycles CPU only. Verified in Blender 5.2.1; written for the 4.2 API.
Details
- Kind
- Blender tool
- Engine
- Blender 4.2 or later
- Files
- 11 files, 126.1 KB
- Licence
- MIT
- Declared effects
- runs commands
- Checked with
- Blender 5.2.1, background (Cycles CPU for previews)
- Checks
- addon install and enable, operator runs with defaults, blender data matches core, addon disable unregisters, script mode runs, clean reopen addon file, clean reopen script file, gltf separate export, engine output clean
- Techniques
- Sun direction from elevation and bearing on the unit sphere, Light rotation that points a lamp's -Z axis along a direction, Equirectangular panorama render used to measure the sky's sun convention
- Tags
- blender, world, sky, sun, lighting, exterior, time of day
- Identity
library.supply.creative_originals.80e062a5ee7842e5a8e53617.0da223c3721f3cf4- Version
0da223c3721f3cf43b33daebaaa4b7e4d454e1b303a3e74b1df03a1be7114322
The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.
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