Illumination-Guided Example-Based Stylization of 3D Renderings

In a digital medium environment for computer-assisted stylization of an image, a system comprising:

• at least one processor:
• and
• at least one computer-readable storage media storing instructions that are executable by the at least one processor to perform operations including:
• rendering a source model for use in a multi-channel source image;
• receiving a hand-crafted style image based on the source model;
• creating the multi-channel source image including at least a style channel and multiple light path expression (LPE) channels having light propagation information, the style channel including the hand-crafted style image;
• synthesizing a style channel for a target image to mimic a stylization of individual illumination effects from the style channel of the source image, the synthesizing including at least:
• guiding the synthesizing of the style channel of the target image based on the light propagation information;
• transferring the stylization of individual illumination effects from the style channel of the source image to the style channel of the target image based on the guiding of the light propagation information;
• and
• generating the style channel of the target image, based on the transferring of the stylization of individual illumination effects, for display of the target image via a display device.

In a digital medium environment for illumination-guided example-based stylization of an image implemented by at least one computing device, a system comprising:

• means for rendering a source model for use in a multi-channel source image;
• means for receiving a hand-crafted style image based on the source model;
• means for creating the multi-channel source image including at least a style channel and multiple light path expression (LPE) channels having light propagation information, the style channel including the hand-crafted style image;
• means for synthesizing a style channel for a target image to mimic a stylization of individual illumination effects from the style channel of the source image, the synthesizing including at least transferring the stylization of individual illumination effects from the style channel of the source image to the style channel of the target image based on the guiding of the light propagation information.