Adjust 18% Gray Level

This is only available when Tonemapper is set to Physical Camera and Sensor Response to OpenColorIO in the Camera Editor. We added Adjust 18% Gray Level to adjust the view transform, so that 18% gray levels stay at 18% gray after applying the view transform. Now, when switching between ACES 1.0, ACES 2.0, and PBR Neutral, brightness remains consistent. Set Tonemapper to Physical Camera and Sensor Response to OpenColorIO to access it.

Automatic Camera Exposure

We added Automatic Exposure to automatically adjust camera exposure, based on the average brightness of an image. Use this for navigating scenes with varying brightness levels, such as transitioning from the exterior to interior of a car or outdoor to indoor environments. Before the addition of Automatic Exposure, the interior could be too dark, as not enough scene lighting would penetrate the interior. Now, when enabled, the automatic ISO is disabled and this is no longer a problem. Find this in the Tonemapping section of the Camera Editor > Image Processing tab. This works for animation and offline rendering and is stored per viewpoint. This does not work in display clustering, as every tile is tonemapped separately.

We also added Exposure Compensation to adjust the brightness applied when Automatic Exposure is enabled. Values above zero increase the exposure applied to the scene, brightening it, where values below zero decrease it, darkening it. This is not available for the Luminance or Illuminance tonemapper.

Chromatic Aberration Updates

We have added more image processing effects to the Chromatic Aberration section in the Camera Editor.

• Distortion - Sets the lens distortion coefficients for the chromatic aberration effect in X, Y, and Z.

  

• Distortion Type - Sets the type of distortion applied. Choose from Barrel, which is based on the aspect ratio of the image, and Radial, which ignores the aspect ratio of the image and tries to use a round shape for the distortion.

  Barrel Distortion	Radial Distortion

• Edge Mode - Determines how edges are handled. If the edges don't contain any relevant information, try using the following:

  • Zoom - Zooms into the image to move undefined regions outside of the visible image.

    

  • Black - Sets the color outside the image to black.

    

  • Mirror Repeat - Mirrors and repeats the edge pixels of the image.

    

  • Clamp - Repeats the edge pixel of the image.

    

• Strength - Determines the strength of the color aberration effect and distortion of the lenses. To increase the effect, increase the value. To reduce the effect, decrease the value.

  Strength = 0.3	Strength = 1

• Blur - Sets the amount of blurring between the color channels. To increase the effect and make the colors blend more together, increase the value. To reduce the effect and make the colors blend less and band more, decrease the value.

  Blur = 0	Blur = 1

Film Grain

We added a Film Grain section to create a cinematic camera effect that distorts clean rendering and shifts it for a very emotional look. It simulates the noise of the camera and is more visible in darker areas, than light. It is pixel-based, so its size is always relative to the rendered resolution. The noise pattern changes with each frame. Find the Film Grain section in the Camera Editor > Image Processing tab.

• Luminance Amount - Sets the amount of luminance film grain.
• Size - Sets the size of the grains.
• Splotchiness - Sets the intensity of the splotches in the film grain.
• Color Amount - Sets the amount of colored film grain.

Glow

We've made performance about 5x faster when working with large glow revolutions.

Luminance and Illuminance Value Indicator

We added a luminance and illuminance tonemapper cursor overlay. This provides detailed information on specific brightness values in rendering. Brightness values are displayed in cd/m² and Lux (lm/m²) within a radius of 5 x 5 pixels around your cursor. Use this when precise brightness measurements, regardless of the value scale, are needed for lighting simulations. Find the Luminance and Illuminance tonemapper in the Camera Editor > Image Processing > Tonemapping section.

Values are slightly offset when anti-aliasing, but are still visible.

New Sensor Response

To the Camera Editor, we added the new AgX Custom Sensor Response for tweaking the image by controlling the power and saturation.

• Power - Only available when Sensor Response is set to AgX Custom. Applies a power value to the image after applying the response curve to control the contrast.

• Saturation - Only available when Sensor Response is set to AgX Custom. Applies a saturation value to the image after applying the response curve.

Raytracing

Find the following raytracing improvement:

• When GPU raytracing and switching between interactive and stillframe antialiasing mode, wireframe selection is no longer updated, resulting in a noticeable performance improvement.

• We reduced memory consumption and fixed performance for the later NVIDIA drivers for GPU Raytracing.

• Texture filtering for direct visualization of the environment is now enabled.