Mesh model transformation

One or more non-transitory computer readable storage media comprising computer readable instructions which, when executed by a data processing device, configure the data processing device to perform mesh model processing by:

• obtaining a first mesh model, the first mesh model comprising a first corner and a first vertex;
• determining a second corner in response to an operation, on a display interface, performed by a user on a first control point used for controlling the first corner;
• transforming the first corner into the second corner in response to the operation;
• determining, on the basis of a positional relationship between a first vector and plurality of first splines, at least one target value corresponding to the first corner, the first vector being a vector from the first control point to the first vertex, and the plurality of first splines comprising a line passing through the first control point and used for representing a contour of the first mesh model, wherein the determining the at least one target value corresponding to the first corner comprises:
• determining a modulus of a first component of the first vector within a first horizontal plane to be a first target value on the basis of the positional relationship between the first vector and the plurality of first splines,
• wherein the first component is a component perpendicular to a spline, close to the first vertex, among the plurality of first splines;
• determining each of the at least one target values corresponding to the first corner based on a respective target value corresponding to the second corner;
• determining a vertex coordinate of a second vertex on the basis of the at least one target value corresponding to the second corner, the second vertex being a vertex corresponding to the first vertex after the first corner is deformed into the second corner;
• determining a second mesh model at the second corner on the basis of the vertex coordinate of the second vertex;
• and
• rendering an image, for output to the display interface, using the second mesh model.

A data processing device comprising:

• a processor controlling operations of the data processing device;
• and
• memory storing computer readable instructions which, when executed by the processor, configure the data processing device to perform mesh model processing by:
• obtaining a first mesh model, the first mesh model comprising a first corner and a first vertex;
• determining a second corner in response to an operation, on a display interface, performed by a user on a first control point used for controlling the first corner;
• transforming the first corner into the second corner in response to the operation;
• determining, on the basis of a positional relationship between a first vector and a plurality of first splines, at least one target value corresponding to the first corner, the first vector being a vector from the first control point to the first vertex, and the plurality of first splines comprising a line passing through the first control point and used for representing a contour of the first mesh model, wherein the determining the at least one target value corresponding to the first corner comprises:
• determining a modulus of a first component of the first vector within a first horizontal plane to be a first target value on the basis of the positional relationship between the first vector and the plurality of first splines,
• wherein the first component is a component perpendicular to a spline, close to the first vertex, among the plurality of first splines;
• determining each of the at least one target values corresponding to the first corner based on a respective target value corresponding to the second corner;
• determining a vertex coordinate of a second vertex on the basis of the at least one target value corresponding to the second corner, the second vertex being a vertex corresponding to the first vertex after the first corner is deformed into the second corner;
• determining a second mesh model at the second corner on the basis of the vertex coordinate of the second vertex;
• and
• rendering an image, for output to the display interface, using the second mesh model.