Quick Interior Preview in Blender with Viewport Render and the Glare Node

What will you learn in this guide?

In Blender, you can quickly preview a scene from the current view and then make further adjustments using Compositor nodes. This guide first walks through rendering a still or animation from the viewport, then explains how to create a Compositor node tree and process bright areas with the Glare Node. For architectural visualization, this approach offers a way to check the framing and bright highlights in an image, but Viewport Render is not a replacement for a Cycles render.

Requirements and important limitations

The source documentation does not specify which version of Blender is required. It also does not mention any account or paid license requirements. So no particular version, hardware, or account requirements should be assumed here. Viewport Render requires a scene and a usable 3D Viewport view. The Compositor steps use an image or render and a node tree created in the Compositor.

There is an important compatibility limitation: Viewport Render works only with the Workbench and EEVEE render engines; Cycles is not supported. Solid mode uses Workbench render settings, while Material Preview mode uses EEVEE settings. The result also uses output settings such as resolution, aspect ratio, output path, and file format.

1. Create a still preview from the view

First, frame the scene from the angle you want to work with in the 3D Viewport. Since Viewport Render renders from the active view, it uses a virtual camera that matches the current perspective unless you are in the active camera view. If you need the output from the active camera’s point of view, press Numpad0 to switch to camera view.

To create a single preview image, choose View > Render Viewport Preview from the 3D Viewport menu. Press Esc to stop the render if needed. Keep in mind that Workbench settings affect the result in Solid mode, while EEVEE settings affect it in Material Preview mode. For the same reason, the view and output settings can affect the preview.

If you do not want rigging, empties, or similar scene helpers to appear in the image, turn off overlays before rendering. This helps remove unwanted view elements from the preview. You can use Render Regions to capture only a specific part of the image; deciding in advance which area you want to inspect can reduce the need to repeatedly check the entire view.

2. Create an animation through the viewport

For an animated preview, use View > Render Playblast in the 3D Viewport. This method is not tied to the active camera like a regular render; it uses the active viewport view. So make sure you consider which view the animation preview will use for its framing.

To render frames with animation keys on selected objects, use View > Render Playblast on Keyframes. There is an important behavior to note: only frames with animation keys on selected objects are rendered; other frames are not omitted from the output—instead, the last rendered frame is repeated. For example, if selected objects have no keys on certain frames, the previous rendered image may be repeated on those frames. When reviewing the output file, be careful not to mistake repeated frames for part of the intended motion.

3. Create a node tree in the Compositor

To adjust bright areas or the overall color appearance of an image, open the Compositor and click New in the header to create a new node tree. The node tree is associated with the scene; it can be reused in other scenes, or linked or appended from different blend files.

To use node-based operations in the render process, enable Compositing Pipeline under Post Processing in the output settings. If this option is disabled, the render may not use the Compositor node tree you created. The general workflow is to bring an image into Blender, process it with nodes, combine it with other images if needed, and save the result.

4. Adjust bright highlights with the Glare Node

Add a Glare Node to the node tree to apply different glare effects to bright areas. In addition to the image with the effect applied, this node can provide a separate Glare output and a Highlights output that isolates bright areas. These outputs can be used to adjust the effect separately or inspect it apart from the rest of the image.

Glare Type options produce different visual results: Bloom creates a soft glow around bright areas; Fog Glow gives a softer glow and may require more processing time. Streaks creates light streaks from highlights, while Ghosts produces overlapping traces resembling lens reflections. Sun Beams simulates light scattering through an atmosphere. The right type depends on how you want the light highlights in the scene to look.

Threshold determines which brightness levels are included in the glare: lower values include more areas, while higher values limit it to brighter regions. Strength controls the overall intensity of the effect, Saturation adjusts the color saturation of the glare, and Tint adjusts its color. In the Quality options, High processes at full resolution, while Medium uses a lower resolution; Low is faster but produces less detail. A lower quality option can help reduce processing time during preview.

Common mistakes

• Trying to use Viewport Render with Cycles: this feature does not support that engine; the source documentation specifies Workbench and EEVEE.

• Staying in another viewport view when you expect camera framing: press Numpad0 to switch to the active camera view for a camera-angle result.

• Expecting a clean image with overlays enabled: turn off overlays if scene helper elements are visible.

• Forgetting to check the Compositing Pipeline option: it must be enabled for the node tree to be used in the render.

• Assuming every frame in a keyframe playblast is rendered separately: frames without keys may repeat the last rendered frame.

• Applying glare across too wide an area: try raising the Glare Node’s Threshold so the effect applies only to brighter regions.

Next steps

First, check the framing and view settings with Viewport Render; then compare the effects by changing the Glare Node type and settings in the Compositor. Create a still using Render and save it with Save Image. For an image sequence, use the Animation button and its related settings. If you need to composite the image later, PNG supports an alpha channel; if you need depth information, EXR supports a Z-depth channel. The right output format depends on what you plan to do with the image in the next stage of your workflow.

Sources and license

This guide was adapted into Turkish using the “Viewport Render,” “Compositing Introduction,” and “Glare Node” pages in the Blender Manual. All three sources are licensed under CC BY-SA 4.0.