A 3D Model Collision Detection Method Based on Interface Marking

Abstract

The invention discloses a three-dimensional model collision detection method based on an interface mark, and the method comprises the steps that a use selects one or more building blocks and enables the building block to move and be placed freely on a bottom plate in 3D building block virtual building software, and carries out the jointing of the building block with other building blocks, therebyforming an unique 3D model or scene; a 3D building block collision detection method based on an interface mark is employed in the building block moving and jointing process for judging whether the building block collides with other building blocks or not, thereby determining whether the selected building block can be placed or jointed with other building blocks or not. If the building block collides with other building blocks, the building block cannot be placed at the position or jointed with other building blocks. The method can adapt to 3D building block models in different shapes, employsa method for manual marking of a collision detection interface for replacing a grid collision device which is carried by a building block 3D model, is smaller in calculation resource waste, and is more flexible and precise in collision detection.

Description

technical field [0001] The invention relates to the technical field of three-dimensional model virtual construction software, in particular to a three-dimensional model collision detection method based on interface marks. Background technique [0002] In recent years, with the rapid progress of society and the improvement of people's living standards, building block education has been accepted by more and more parents and children as a new educational method. As an art creation activity, building blocks are classics among educational toys, and their biggest feature is to realize creativity by themselves. Building blocks can be varied through different combinations. Children need to choose different building blocks and connect them in different ways based on the use of hand muscles, according to the appearance in their minds or in reality, and finally integrate their own building block works. This not only satisfies the structural characteristics of children's imagination an...

AI Technical Summary

Problems solved by technology

Due to the complexity of the building block model, there are many rendering surfaces of the building block 3D model. Using the grid collider directly will cause the computer resources to be seriously occupied. When the number of building blocks in the scene reaches a certain level, the software will operate slowly and there will be obvious stuck Dayton phenomenon

At the same time, when some 3D engines detect collision triggers, because the grid collider is too complex and there are too many rendering convex surfaces, it will replace the bounding box of the building blocks to detect collision triggers, which leads to inaccurate collision detection.

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