Method for creating three-dimensional model by using sketch
A 3D model and sketch technology, applied in the field of creating 3D models with sketches, can solve problems such as excessive user drawing restrictions and inability to support user shape design, etc., to improve versatility, simplify the 3D reconstruction process, and improve naturalness and freedom. Effect
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[0028] The invention discloses a method for creating a three-dimensional model using sketches, which includes the following steps:
[0029] Step 1: Sketch analysis: divide the strokes of the sketch to be processed into primitive strokes as object outlines and clue strokes as three-dimensional effects, and perform primitive recognition and clue recognition respectively;
[0030] Step 2: Depth information recovery: use the detection of the neighbor relationship of primitives to realize the identification of the object unit, thereby constructing the object unit set to restore the depth information of each object unit;
[0031] Step 3: Hidden line identification and completion: Under the guidance of drawing clues, identify and complete the hidden lines of each object constituent unit to generate a complete three-dimensional object unit;
[0032] Step four: 3D model reconstruction: use geometric topological relations to splice object units to reconstruct the target object model.
[0033] Mor...
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