System and method of rendering a graphical object with modification in structure

Apparatus configured to render a graphical object, comprising:

• a display;
• a memory;
• a processor configured to execute code stored on the memory to:
• reproduce, on the display, a graphical user interface (GUI);
• access a mapping relating a mesoscale structure and at least one light scattering parameter of a material to a perceptual appearance characteristic;
• determine a perceptual appearance characteristic of the graphical object, the graphical object representing an object formed from the material, the perceptual appearance characteristic determined in accordance with the mapping using an initial mesoscale structure and at least one light scattering parameter of the material;
• reproduce the graphical object on the GUI based on the determined perceptual appearance characteristic;
• receive, via the GUI, a user interaction indicating a modification in structure of the initial mesoscale structure;
• determine, using the mapping, an adjustment of the at least one light scattering parameter preserving the perceptual appearance characteristic, based on the modification of the initial mesoscale structure;
• adjust the at least one light scattering parameter of the material according to the determined adjustment;
• and
• render, in the GUI, the graphical object using the modified mesoscale structure and the adjusted at least one light scattering parameter.

A non-transitory computer-readable medium having a computer program stored thereon in response to a modification in structure, the method comprising:

• access a mapping relating a mesoscale structure and at least one light scattering parameter of a material to a perceived gloss of a material;
• determine a perceived gloss of the graphical object, the graphical object reproduced on an interface to represent an object formed from the material, the perceived gloss determined in accordance with the mapping using an initial mesoscale structure and at least one light scattering parameter of the material;
• receive, via user interaction with the GUI, a signal indicating a modification in a height scale value of the material;
• determine, using the mapping, an adjustment of roughness of the material preserving the perceived gloss, based on the modification;
• adjust the at roughness of the material of the graphical object according to the determined adjustment;
• and
• render the graphical object using the modified height scale value and the adjusted roughness.

A system, comprising:

• a memory;
• and
• a processor, wherein the processor is configured to execute code stored on the memory for implementing a method rendering a graphical object in response to a modification in structure, the method comprising:
• accessing a mapping relating a mesoscale structure and at least one light scattering parameter of a material to a perceptual appearance characteristic;
• determining a perceptual appearance characteristic of the graphical object, the graphical object reproduced on an interface to represent an object formed from the material, the perceptual appearance characteristic determined in accordance with the mapping using an initial mesoscale structure and at least one light scattering parameter of the material;
• receiving, via the interface, a signal indicating the modification in structure, the modification in structure relating to modification of the initial mesoscale structure;
• determining, using the mapping, an adjustment of the at least one light scattering parameter preserving the determined perceptual appearance characteristic, based on the modification of the initial mesoscale structure;
• adjusting the at least one light scattering parameter of the material according to the determined adjustment;
• and
• rendering the graphical object using the modified mesoscale structure and the adjusted at least one light scattering parameter.