The Render Settings panel allows you to set a wide range of properties relating to the behavior and appearance of the Render Views.
Use the drop down at the top of the panel to choose which Render View settings you want to adjust.
...
HDR Light Studio is the native Render View included with HDR Light Studio for fast light positioning and lighting preview.
If you are using HDR Light Studio connected to a supported Host/Renderer, this will also be listed in the drop down, in this example 3DSMax/VRay
Render View Settings for HDR Light Studio's Render View
...
Scene
...
3D Scene File
Displays the loaded 3D Scene file path. Use the Browse button to load a new 3D Scene.
...
Scene FPS (Frames Per Second)
When loading an alembic file, the user can choose which frame from the animation to display, via the Frame Number setting in the Render View. Alembic files store time in seconds, not frames, so this setting is provided for the user to tell HDR Light Studio the FPS used in their 3D software. This ensures the frame numbering matches.
Renderer
...
Max Samples
This is a quality setting for the Render View. Sets the number of rays that are computed to determine the color of a pixel. High values take longer to calculate but give more accurate, less noisy results. To reduce the CPU useage of HDR LIght Studio, you can keep this setting low, so it does not compete for as long a duration when other CPU renderers are also running. This is less of an issue when the other renderer is GPU, because HDR Light Studio's own Render View is CPU only.
...
Fast Area Lights
Enable this check box, and a single average color/brightness is used for the illumination contribution of the area light. This means a less noisy render result is achieved far faster.
Display
...
Image Width
The horizontal resolution of the rendered image.
...
Ident Logo
Turns on and off the display of the HDR Light Studio logo in the corner of the view
Appearance
...
Diffuse Color
Click the swatch to open the color picker to choose a new diffuse color for the shader.
...
IOR
Fresnel is set by a single IOR (Index of Refraction) parameter.
Render View Settings for Host/Renderer Render View
...
Scene FPS, Image Width, Image Height are read only displayed settings.
...