Image rendering based on light baking

An apparatus, comprising:

• one or more processors;
• and
• memory storing instructions that, when executed by the one or more processors, configure the apparatus to:
• determine a texture element in a to-be-rendered scene;
• determine a target spatial directional tree corresponding to the to-be-rendered scene, wherein the target spatial directional tree represents an incident ray distribution corresponding to the texture element in the to-be-rendered scene;
• determine, based on the target spatial directional tree, a scene spatial region for the texture element;
• determine, based on a quantity of light paths in the scene spatial region, light energy in a ray direction corresponding to the texture element;
• determine the incident ray distribution corresponding to the texture element based on the quantity of light paths in the scene spatial region and the light energy;
• and
• determine a light rendering result corresponding to the texture element based on an incident ray corresponding to the incident ray distribution.

One or more non-transitory computer-readable media, when executed, cause:

• determining, by a computing device, a texture element in a to-be-rendered scene;
• determining a target spatial directional tree corresponding to the to-be-rendered scene, wherein the target spatial directional tree represents an incident ray distribution corresponding to the texture element in the to-be-rendered scene;
• determining, based on the target spatial directional tree, a scene spatial region for the texture element;
• determine, based on a quantity of light paths in the scene spatial region, light energy in a ray direction corresponding to the texture element;
• determining the incident ray distribution corresponding to the texture element based on the quantity of light paths in the scene spatial region and the light energy;
• and
• determining a light rendering result corresponding to the texture element based on an incident ray corresponding to the incident ray distribution.