Simulare la posizione del sole su un DTM: workflow completo in QGIS

Knowing how the sun illuminates your DTM at a specific date and time can be useful for shading analysis, insolation studies, or simply to better understand the morphology of an area. In QGIS, you can do this in two ways: a purely graphical one and one that produces a queryable raster with real values. Here's the workflow you'll find in the video: 1. "Hill Shading" as a render type in Symbology: change the sun's altitude and azimuth in real time, see the effect immediately in the properties panel 2. GDAL "Hill Shading" (processing tools): creates a new raster that "freezes" a specific sun position—useful for comparing different scenarios and keeping files 3. NOAA Solar Calculator (external tool): how to obtain exact sun azimuth and elevation from a specific date, time, and geographic location 4. QGIS "Earth, sun, moon, and planets" plugin: how to install, configure, and use the Solar Lunar Information panel to get azimuth and elevation directly within QGIS 🎓 GTER TRAINING QGIS in Action is a project developed together with @GterGeomatica, trainers specializing in QGIS and geographic information systems. If you'd like to learn more about QGIS (basic, advanced, Python) or other geospatial topics, you can find their training offerings here: 👉 https://www.gter.it/formazione With the code 3DMETRICAGTER, you get a €30 discount on any course. Gter Telegram Channel → Updates and Geobreak (free events): https://t.me/geobreak 📢 SUGGESTED CONTENT? If you're working with QGIS and have a recurring problem or a workflow that isn't working for you, let us know in the comments. Let's get inspired for future episodes. 📬 CONTACTS LinkedIn → paolo.corradeghini Telegram → https://t.me/paolocorradeghini Email → [email protected] If you want to support 3DMetrica and its free content, you can do so on Patreon: www.patreon.com/3dmetrica 0:00 Intro 0:27 Hill Shading as a layer render type 1:08 Altitude and azimuth: the sun's parameters 3:42 Creating the Hill Shading raster with GDAL 5:31 NOAA Solar Calculator: real sun position 8:08 What the raster measures (values ​​0-255) 9:56 QGIS in action and DigiTERR 11:54 Earth, sun, moon, and planets plugin 13:00 Dependencies: skyfield and timezone_finder 15:37 Solar Lunar Information: the panel 5:25 PM Outro