> [!abstract] Summary > **Lighting in Solaris** — using the **Light Mixer** for fast iteration, hiding HDRIs from the viewport background, controlling light intensity from the viewport (Diffuse mode, exposure variant), and reverting nodes to a saved **snapshot**. --- # Light Mixer Use the **Light Mixer** LOP for fast lighting iteration — slider-style control over all lights in one place. ![[file-20241024003839826.png|500]] ## HDRI - **Hide HDRI in background**: - Open viewport options (**D**) → **Background** → **uncheck** *Display Environment Lights as Backgrounds*. ## Light Control in the Viewport - **Diffuse mode** — click in the viewport where you want the light to look at. - **Right-click in viewport** → change **Brightness Variant** to **Exposure**. - **Ctrl + Shift + Drag** = adjust exposure directly. --- # Snapshot The classic Snapshot tool — with a twist. You can **revert every node** to a previous snapshot state, recovering an entire lighting setup at once. ![[file-20241027113014738.png]] --- # 🔗 Related - [[../SOLARIS MOC|SOLARIS MOC]]. - [[../LOOKDEV HOUDINI SOLARIS|LOOKDEV HOUDINI SOLARIS]] — Karma vs Arnold viewport choice. - [[../NODES/Solaris Rendering TIps|Solaris Rendering Tips]] — render region, eyedropper. - [[../../KARMA/KARMA MOC|KARMA MOC]] — render side. - [[../../../LIGHTING/LIGHTING MOC|LIGHTING MOC]] — cross-renderer lighting theory.