Patchwork 3D 2024 X7

Iray Photoreal: This is the photo- and physically realistic mode in Iray, which uses complex global illumination effects. This mode offers a maximum quality but takes longer to calculate the refinement of the image.

Iray Interactive: This raytracing mode uses progressive rendering that allows you to take advantage of the effects of a raytracer without giving up interaction and editing capabilities. This mode does not provide physically realistic rendering.

Blend: Render convergence begins in Interactive mode and then switches to Photoreal mode after a certain level of refinement is achieved. In high-interactivity situations, this mode allows for more fluid interaction while still aiming for increased realism once the interaction has ended. Because both rendering modes are used, this mode consumes more memory resources during the conversion of the scene.

Multiple criteria are available to define the end of the refinement phase. The rendering will stop as soon as the first limit is reached.

Max samples per pixel: the higher the limit, the better the quality and the longer the rendering time

Max quality: expressed as the rate of convergence per pixel, from 0 to 1, where 1 represents an infinite convergence

Max time: maximum duration of the calculation in hours, minutes and seconds before stopping the refinement

Max path length: in number of bounces

The optimization settings favor certain phenomenons or characteristics that are physically present in the scene in order to make the final convergence for these elements visible earlier during the rendering.

Caustic sampler: uses a sampling strategy to favor the calculation of caustics

Architecture sampler: allows earlier appearance of the light in interior spaces

Enable Environment Material support allows you to view an environment material in the viewport of Matter.

A rendering difference may appear between Iray and OpenGL, that's why you can use the Use alternative texture parameter to prevent blurring when the HDR or EXR file applied to the background texture of the environment is in low resolution. Patchwork 3D will instead load an alternative non-HDR texture which results in an alteration of information related to the intensity of the light. You will find additional information related to the Environment material in the following chapter: Using an Alternate Background Texture as an Environment Material.

In the event that the Environment material is not used, Set the background mode to environment parameter is required to display the Iray environment. This is to apply the background mode Environment to the sensor in use. You will find additional information on how a sensor works in the following chapter: Sensors (Editor).

The ground, when enabled, simulates an infinite plane, covered in the equivalent of a matte material. In background mode, it includes the reflections of and influence of the product's environment.

Altitude: height of the ground along the Y axis

Shadow intensity

Scale: adjusts the scale of the environment

Glossiness: glossiness of the ground

Reflectivity: reflection color for the ground

Filters reduce certain artifacts associated with the non-convergence of pixels. Filters can impose an additional calculation load, which can taken up, in part, by the CPU.

Fireflies: filters bright points

Degrain filtering: produces a smoothing of the rendering. Five modes are available:

In ascending order, the Pixel clipping produces a soft smoothing while the Limited auto blur produces a strong smoothing.

The Patchwork 3D rendering engine supports the new algorithms for intelligent noise reduction by NVIDIA Iray. During progressive refinement it is now possible to obtain a noise-free rendering from a threshold defined in advance.

From the user-defined threshold of the Minimum iterations, intelligent noise reduction algorithms perform a process to make the image look sharper.