Local space texture mapping based on reverse projection

A computing device, comprising:

• a processor;
• and
• a memory coupled to the processor and storing instructions, which when executed by the processor, cause the processor to perform operations comprising:
• receiving a polygon mesh of an object;
• determining a positional map and a normal map associated with the polygon mesh by applying a rasterization function to the polygon mesh;
• receiving a target texture map associated with the object and a decal texture to be placed on the target texture map;
• determining a position, an orientation, and a scale of the decal texture with respect to a local space of the polygon mesh by applying a transform matrix to the target texture map and the decal texture;
• determining placement of the decal texture onto the target texture map by performing a per-pixel projection operation based on the positional map associated with the polygon mesh, the normal map associated with the polygon mesh, and the position, the orientation, and the scale of the decal texture;
• and
• rendering the object with the decal texture applied thereon based on the placement of the decal texture onto the target texture map.

A non-transitory computer-readable medium with instructions stored thereon that, when executed by a processor, cause the processor to perform operations comprising:

• receiving a polygon mesh of an object;
• determining a positional map and a normal map associated with the polygon mesh by applying a rasterization function to the polygon mesh;
• receiving a target texture map associated with the object and a decal texture to be placed on the target texture map;
• determining a position, an orientation, and a scale of the decal texture with respect to a local space of the polygon mesh by applying a transform matrix to the target texture map and the decal texture;
• determining placement of the decal texture onto the target texture map by performing a per-pixel projection operation based on the positional map associated with the polygon mesh, the normal map associated with the polygon mesh, and the position, the orientation, and the scale of the decal texture;
• and
• rendering the object with the decal texture applied thereon based on the placement of the decal texture onto the target texture map.