Display Settings

The display tab has many options that affect the rendered image. These options can be separated in 6 areas:
Exposure - Filtering - LUT - Glare - Denoise - Photometric analysis

To access the display tab, click on the display settings camera icon on the Thea toolbar.

Display settings tab

EXPOSURE

  • Tonemapping: Select the tonemapping method that will be used. (Standard, Filmic, Reinhard Global, Reinhard Local)
  • Exposure Value (EV): Controls the exposure of the rendered image. Increasing the EV value by 1 will affect the image by halving the exposure
  • Gamma: The Gamma factor typically ranges from 1.0 to 2.5. In order to compensate for the darkening of the image due to non‐linear output, we apply a gamma correction scheme to the pixel values before displaying the image

Standard tonemapping: No tonemapping is applied
Reinhard Global / Local: "Reinhard Global" performs great for low contrast images. Reinhard Local produces images of higher contrast. Both methods respect the chromaticity of the image (color hue & saturation) while adjusting the brightness of each pixel
Filmic: Provides better control over the highlights and shadows of the image while giving a photographic look. With Filmic, it is possible to increase the overall exposure of the scene without losing details or overburning the highlights

Display settings: Exposure

FILTERING

  • Sharpness (%): This is the most crucial filter for controlling the filtering during downsampling the image and it is advised to be enabled at default 50% value which is a balanced value between blurring and sharpening. A value near 0% will produce a more blurred image while a value near 100% produces a more sharpened image
  • Burn (%): The burn value can be used to compress a High Dynamic Range (HDR) in a Low Dynamic Range (LDR) image, presentable on screens and other limited range devices. Setting burn to 100% means that there is no compression. It is recommended to have this disabled when Filmic is used
  • Vignetting (%): In photography and optics, vignetting is a reduction of an image's brightness or saturation at the periphery compared to the image center
  • Chroma (%): This filter enhances the colors of the image as it is increased, acting as a saturation control
  • Contrast (%): Determines the difference in the color and brightness of the object and the objects within the same field of view. 0% equals to a disabled control. 100% is the maximum value that can be set
  • White Balance (K): Can be used to change the overall color balance of a render, so that it matches the expected phenomenal appearance. A value of 6500K is usually used to balance lighting coming from Sun and make white walls appear white, despite sun power being more yellowish

Display settings: Filtering

LUT

LUT stands for Lookup Table. LUT files can be used to color grade an image. Thea supports 3D LUTs in .cube file format. You can add your own by copying them in Thea Data/LUT folder.

  • LUT File: Select from the available list of LUT files
  • Blend (%): Blending between the original and the LUT color graded image

Display settings: LUT

GLARE

Glare is the effect when a high amount of photons arrives at film, causing lighting to flood also nearby areas. The shape of the glare itself depends on the shape of the diaphragm.

  • Strength (%): Controls the intensity of the effect
  • Radius (%): Controls the length of the blades.
  • Blades: The number of the blades. Radial equals to Bloom

Display settings: Glare

DENOISE

Thea Render provides two AI-Accelerated denoisers.

  • Denoise Type: Intel Open Image Denoise and NVIDIA OptiX
  • Blend: Blends the original image with the denoised one based on the defined value
    0%: Denoised image | 100%: Original image

Display settings: Denoise

PHOTOMETRIC ANALYSIS

Luminance analysis describes the luminance and illuminance distribution. Thea Render can compute both. Luminance is computed out of the box for any image that you have already rendered and for any render settings.

  • Min / Max lum‐Illum: Represents the range of the Luminance (cd/m2). By changing these values, the false color image is being adjusted accordingly

Display settings: Photometric analysis