Lighting & rendering in Blender

Making images and videos in Blender 5.x (5.2 LTS): EEVEE vs Cycles vs Workbench, viewport shading and matcaps, world and HDRI lighting, lights and their units, three-point lighting and light linking, cameras, render settings and denoising, color management (AgX), image and video output, website turntables and transparent PNGs, and speed on a Mac. Why light and materials behave as they do is in Materials & lighting; materials themselves are in Materials, UVs & texturing. Keys are Windows-style; on macOS read Ctrl as ⌘ (or ⌃), Alt as ⌥, and press fn with F-keys unless macOS is set to use them as standard function keys.

Render engines

Properties > Render tab > Render Engine.

EEVEE is the default engine for new files. Material Preview shading uses EEVEE, so it predicts what EEVEE renders.

Viewport shading & matcaps

Z opens the shading pie; Shift+Z toggles wireframe; Alt+Z X-ray. The header's four spheres do the same, and the ▾ next to them holds options.

MatCaps (Solid > Lighting > MatCap) are shiny "material capture" spheres: they exaggerate every bump and pinch, so they are the fastest way to check surface quality while modeling. Color Random tells objects apart; Color Texture shows image textures in Solid mode without the cost of Material Preview.

World & HDRI lighting

Properties > World sets the background and ambient light (a Background shader: Color + Strength). An HDRI (high dynamic range 360° photo, .hdr or .exr) lights a scene realistically in one step.

1. World tab > Surface > Color: click the socket dot > Environment Texture; Open an HDRI (Poly Haven, ambientCG: CC0).
2. Strength scales it (1 = as shot).
3. Rotate: Shader Editor, switch to World, select the Environment Texture node, Ctrl+T (Node Wrangler) adds Mapping; change Rotation Z.
4. Hide the background but keep its light: Render > Film > Transparent (then composite over any color), or in Cycles World > Ray Visibility > uncheck Camera.

Use the Environment Texture node, not Image Texture: it maps equirectangular (lat-long) images correctly. EEVEE treats world light as indirect and stores it in an internal light probe, so it is less precise than in Cycles.

Lights

Shift+A > Light. Select a light, then Properties > Object Data (green bulb) for its settings. Right-click

Adjust Light Power changes it interactively.

Watts here are radiant power, not a bulb's electrical rating: the manual lists an 800 lm LED bulb as about 2.1 W and clear-sky sun as about 1000 W/m², but rendering those needs camera-like exposure. New point, spot and area lights start at 10 W, a new Sun at 1, and the startup scene's light at 1000 W. In practice: put the light at its real distance, raise power until the subject reads well, then fine-tune with Exposure in Color Management. Every light also has Color, Temperature (Kelvin) and an Exposure slider.

Three-point lighting

The classic product and character setup (theory and diagram in Materials & lighting):

1. Key: an Area light 45° to one side of the camera and 30–45° above the subject, aimed at it (rotate it, or add a Track To constraint targeting the subject). The brightest light; its size sets shadow softness.
2. Fill: a larger Area light on the opposite side at about ⅓–½ of the key's power, to open up shadows.
3. Rim (back light): behind and above the subject, facing the camera, strong and narrow, to outline the silhouette against the background.
4. Optional: a dim HDRI or a gray World color (Strength 0.1–0.3) so shadows are never pure black.

Light linking

Light linking makes a light affect only some objects; shadow linking picks which objects block it. Works in Cycles and EEVEE (emissive meshes: Cycles only).

1. Select the light, Properties > Object > Shading > Light Linking.
2. New collection, drag objects or collections from the Outliner into it; set each to Include or Exclude.
3. Shortcut: select the receivers, then the light last, Ctrl+L > Link Receivers to Emitter.

Use it for a rim light on a character only, or to keep a key light off the backdrop.

Camera

Render settings

Cycles (Render tab):

EEVEE (Render tab):

Output tab > Format: Resolution X / Y and % (render at 50% for tests), Frame Rate; Render Region (Ctrl+B in camera view draws it, Ctrl+Alt+B clears) renders only part of the frame.

Watch the finale for lighting, camera and final render settings on a finished scene.

Color management

Render tab > Color Management converts the linear render into display colors. Same settings apply to the viewport, the render window and saved PNG/JPEG/WebP (EXR stays linear).

Matching the web: three.js renders with no tone mapping unless you set one; it has AgXToneMapping and NeutralToneMapping (Khronos PBR Neutral). Pick the same transform on both sides when you compare Blender renders with the live model (Three.js lights & shadows).

Output: images & video

Output tab > Output: File Path (// = next to the .blend; //render/frame_ gives frame_0001.png), Media Type Image / Multi-Layer EXR / Video, then format settings.

Render animations as image sequences, then encode: a crash loses one frame instead of the video, you can re-render single frames, and you can encode several formats from one render. Enable Overwrite off + Placeholders on to resume or split a render across machines.

# macOS: brew install ffmpeg
ffmpeg -framerate 30 -i frame_%04d.png \
  -c:v libx264 -pix_fmt yuv420p -crf 18 turntable.mp4
 
# transparent video for the web (VP9 WebM with alpha)
ffmpeg -framerate 30 -i frame_%04d.png \
  -c:v libvpx-vp9 -pix_fmt yuva420p -b:v 0 -crf 30 \
  turntable.webm

yuv420p needs even width and height. Blender can also encode directly (Media Type Video) or assemble a sequence in the Video Sequencer.

Rendering for websites

Performance on a Mac

• Preferences > System > Cycles Render Devices > Metal, tick the Apple GPU; Render tab > Device GPU Compute. Apple Silicon also gets GPU denoising and hardware ray tracing (MetalRT, Auto by default). Intel Macs are no longer supported by Blender 5.
• Cycles: Noise Threshold 0.02–0.05 with Max Samples 256–512 and OIDN denoise; Light Paths bounces 4–6; keep indirect clamping on.
• Test at 25–50% resolution and with a Render Region; use EEVEE for look development and animations.
• Render tab > Simplify: cap Max Subdivision and Texture Limit for previews.
• Animations: Persistent Data on; render image sequences; keep the Mac plugged in (battery mode throttles the GPU).
• Unified memory is shared with the system: close heavy apps, and downsize 8K textures to 2K–4K.

Does this survive export?

Lights, cameras, render settings and color management mostly stay in Blender.

Per target: Web / Three.js, Godot, GTA V (GTA lights are placed in-game or via map files, not from Blender renders).

Recipes

Studio turntable render

Use for a product or model preview video on a website.

1. Model at the world origin, origin at the bottom center.
2. Shift+A > Empty > Plain Axes at (0, 0, 0). Select the camera, then the Empty, Ctrl+P > Object: the camera now orbits with the Empty.
3. Frame 1: Empty Rotation Z = 0, hover the field, I. Frame 121: Rotation Z = 360, I.
4. Frame range 1–120 (so frame 121, identical to frame 1, is never rendered). In the Timeline or Graph Editor: select all keys, T (Interpolation) > Linear for constant speed.
5. Lighting: three area lights parented to nothing (the model turns through fixed light) or parented to the Empty (light turns with the camera).
6. Output: //render/frame_, PNG RGBA, Film Transparent if the page supplies the background; Ctrl+F12.
7. Encode with the FFmpeg commands above.

Transparent PNG product shot

Use for cut-out images on a landing page.

1. Cycles; Film > Transparent.
2. Add a floor plane under the product; Object Properties > Visibility > Mask > Shadow Catcher: only the shadow renders.
3. Key + fill area lights; 85 mm lens; View Transform Khronos PBR Neutral.
4. Output PNG or WebP, RGBA; F12; Image > Save As.

Quick realistic lighting with an HDRI

Use to preview a model or light an exterior in one step.

1. Download a 2K–4K HDRI (Poly Haven), World > Color > Environment Texture > Open.
2. Ctrl+T (Node Wrangler) on it; rotate Mapping Z until the sun direction flatters the model.
3. Add a Sun with the same direction for crisp shadows (the HDRI's sun is often soft in EEVEE).
4. Film > Transparent if the background shouldn't show.

Fast, clean Cycles still on a MacBook

Use for a portfolio render in minutes, not hours.

1. Device GPU Compute (Metal).
2. Noise Threshold 0.03, Max Samples 512, Denoise OIDN with Albedo + Normal.
3. Light Paths: Max Bounces 6; lower Clamping > Indirect Light if fireflies appear.
4. Render at 50% to check; 100% for the final; save as PNG or EXR.

Light a character with three points

Use for character turnarounds and thumbnails.

1. Key: Area light, Size 1 m, 45° left and 40° up, Track To the head; 100–300 W at 2–3 m, then adjust.
2. Fill: Area 2 m, opposite side, about a third of the key.
3. Rim: Spot or narrow Area behind, above, aimed at the shoulders; enable Light Linking to the character only so it doesn't hit the backdrop.
4. World: gray, Strength 0.2. Check with View Transform AgX and False Color for clipped highlights.

Encode a PNG sequence to MP4 and WebM

Use after any animation render.

1. Render frames to //render/frame_ (PNG, RGBA if transparency is needed).
2. Run the FFmpeg commands from the output section in that folder.
3. For the web: MP4 H.264 for opaque video, WebM VP9 with alpha for transparent video; use a PNG poster frame.

References

• Blender Manual: Render engines (opens in a new tab): EEVEE, Cycles, Workbench compared
• Blender Manual: EEVEE (opens in a new tab): sampling (opens in a new tab), raytracing (opens in a new tab), light probes, limitations
• Blender Manual: Cycles sampling and denoising (opens in a new tab) and GPU rendering (opens in a new tab): noise threshold, OIDN / OptiX, Metal
• Blender Manual: Light objects (opens in a new tab): types, units, typical power values; Light linking (opens in a new tab); World (opens in a new tab)
• Blender Manual: Cameras (opens in a new tab): lens, depth of field, sensor
• Blender Manual: Color management views (opens in a new tab): AgX, Standard, Khronos PBR Neutral, looks, exposure
• Blender Manual: Output properties (opens in a new tab), Format (opens in a new tab) and Video formats (opens in a new tab): media types, codecs, alpha support
• Blender Manual: Viewport shading (opens in a new tab) and Viewport render (opens in a new tab): matcaps, playblasts
• FFmpeg documentation (opens in a new tab): encoding image sequences
• Poly Haven HDRIs (opens in a new tab): CC0 environment lighting