With ViSoft Phototuning you can render lifelike media of the project. This module needs to be activated separately from Premium. In ViSoft the rendering software V-Ray is integrated. Rendering is a graphical design term. To render relates to the processing of images for a film or animation.

A lot of elements are of importance in making a great render. Light settings are crucial, it’s important to create realistic lightning. Other important factors are camera position, used materials and textures, settings of the V-Ray rendering software.

Get started

Before you start with Phototuning, make sure you set up the lighting, materials, camera and viewpoints. The setting of light is certainly difficult at the beginning. Try to prevent setting the lights too bright and keep them behind or next to the camera. Start Phototuning in menu View | Advanced or use hotkey F10. The Phototuning preview window will open (see image below). The preview window is on the left side. The aspect ratio of the preview is equivalent to chosen picture resolution. Below it is the Exposure Correction slider. By using it you can make picture brigther or darker manually. Under the slider is preview rendering status. It shows elapsed time and description of current actions or condition.

By right clicking into the preview picture you can select three different ways for preview creation

• RT CPU: RealTime preview based on the processor computing power.
• CPU Production: render in the preview window, also based on the processing computing power.
• RT Cuda: Realtime preview based on the graphic card’s computing power.

RT CPU and RT Cuda are on-going progressive processes that keep rendering. First results are shown quickly. As time goes on more and more noise is removed. You may change the viewpoint or light settings at any time. The changes are detected and creating of a new preview begins. When using CPU Production you need to click Refresh button after any change. CPU production will create a preview picture and stop rendering.

Quality provides four predefined quality options:

Fast

The setting fast doesn’t calculate soft shadows or natural lighting and leaves all quality settings on a low level. This mode is useful to get a fast overview of the brightness of all lights in the current scene. Use this mode always in the beginning, to realize the best approximation to the best light setting. Pictures made with option fast have only draft quality.

Good

This level uses soft shadows with low quality and some other settings that increase quality. Use it to perform enhancements on details and to create pictures with low quality.

Perfect

This adjustment computes softer shadows with higher quality and increases other quality settings.

Photorealistic

This option calculates quality soft shadows. All other necessary quality settings have high values. You should use this mode when light and material settings have been already finished. The result of the automatically optimized settings is a photo realistic picture with soft lighting and gentle shadows. The calculation time depends on the desired resolution and the power of your hardware.

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Use Output to select the resolution. Choose from the typical resolutions, or type a custom size in pixels. Think about the intended use to define the adequate resolution for presentation. Try to match the resolution of the device you want to present it on, go lower or higher and it reduces the quality. Read here more about how to calculate the DPI. Higher resolution means longer render time.

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Under Image file name fill in the name of the image. Press … to change the save location. Use Image format to save to JPG, PNG or TIF. Enable Sferische camera if you want to render a panorama and use is for software like KRPano.

Press the button Multiple Viewpoints Rendering to select more viewpoints, and enqueue them all at once to render. In menu View | Camera use the navigation panel to save custom viewpoints.

Explanation of the other functions: Refresh: the preview starts a new rendering. Enqueue: Add a task to the render queue. You can add tasks and start the renders at a later time. Show enqueue: open the tasklist. Start: Start rendering the current view (and the ones you might have selected under Multiple Viewpoints Rendering).

Settings:

Press the button Settings to set up the preferences for Phototuning. The ViSoft System Preferences window is openend, see image below.

Use V-Ray frame buffer for rendering
V-Ray frame buffer is a display window for V-Ray renderings that includes a number of specific features, like performing color corrections and applying lens effects on rendered image.
Enable denoiser
diminishes the noise in an image.Vermindert eventuele ruis in een afbeelding.
Auto-exposure
Auto Exposure is an additional pass before the preview rendering starts. It detects overall intensity and applies modification to settings. By using it you avoid too bright or too dark pictures.
Glare Effect
Creates light beams around objects with high intensity.
Enable Chamfer Effect
Use chamfer effect to make edges smoother. For example, the edges of sanitary ware objects will be smoother, less sharp. This adds realistic look and reflections.
GI Saturation
GI Saturation enables color bleeding. For example, when a light hits a red object in the scene some of the red color will be dispersed and reflected in the vicinity of the object. Value 1 is phisically correct value of this effect. You can lower the value to make this effect less apparent. Higher values will increase the effect.