March 6, 2023 Linh Nguyen

Some Ways To Change Exposure In Blender

When rendering in Blender, exposure is also one of the important factors. There are many ways to adjust exposure to enhance the overall look of your render. If you know how to set the right exposure, you can get more realistic and attractive images. Besides, it can also help balance the overall brightness of the scene as well as make the scene more visually pleasing. Therefore, it will attract more viewers. In this Blog today, iRender will learn some ways to change exposure in Blender.

1. What is Exposure?

Just like in photography, the exposure will increase the amount of light that enters the camera, resulting in a brighter image. Blender has exposure controls for both Cycles and Eevee. You will find these in the Scene tab of your properties window.

Image Source: Blender Document

In general, the right exposure will produce a well-lit image. It will accurately represent the scene as the human eye will perceive. An underexposed render will be too dark, while an overlight render will be too bright. Without the right exposure, the rendered result will not look good and attract the viewer.

An example of overexposure in our daily lives can be felt when you take pictures of the sky. The camera is often pointed towards the brightest area so it can be difficult to get the most accurate exposure. The sky is often much brighter than the foreground. And as a result, the camera will have trouble balancing the exposure between the two areas. Exposure brightens the darker pixels, so that the darker parts of the image will not be changed at all (Range : 2.0, Exposure : 0.3). You can refer some picture below:

An overexposed teapot (Image Source: Blender Document)

Range: 2.0 (Image Source: Blender Document)

2. Exposure in Film Section

The exposure setting in the film section is modified before starting the rendering process. This means that the information that you are seeing is adjusted.

If you want the final render to have a particular overall brightness while simulating the physical characteristics of a camera, you should utilize the exposure settings in the Film section. For example, you might utilize the exposure settings under the film section to match the camera’s aperture, shutter speed, and ISO if you wanted to duplicate the appearance of an image shot with a certain camera and film.

Image Source: Blender Guru

3. Exposure in Color Management Section

Color management is one of the most important tools that an artist can use. It allows an artist to ensure that an image remains the same from rendering, to saving, to post-processing. Moreover, Color management also helps an artist change exposure, gamma, or the overall color grade. Blender includes the OpenColorIO (OCIO) library to enable color management.

The final image’s colors and contrast should be adjusted using the exposure setting from the color management section. The exposure settings of the color management section can be used to adjust the overall brightness of the final rendered image. This can be useful for making final adjustments to the image.

Image Source: Blender Document

Final Thoughts

In short, varying the exposure of your render can improve the sharpest and most realistic image. Especially, when you want to show viewers the beauty of nature and the sky. The color management settings in Blender mainly depend on your workflow. To get good quality photos, you need to balance the exposure properly.

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Linh Nguyen

Hi everyone. I work as an Assistant Customer at iRender. I always hope to know more 3D artists, data scientists from all over the world.


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