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Implementation method of model LOD based on point cache system

A technology of caching system and implementation method, applied in 3D modeling, image data processing, animation production, etc., can solve the problems of manual surface reduction taking a long time, and the shape of random surface reduction model cannot be maintained.

Inactive Publication Date: 2020-06-26
江苏原力数字科技股份有限公司
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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for realizing model LOD based on the point cache system, which solves the problems of long time-consuming manual surface reduction and the inability to maintain the model shape of random surface reduction, so that a file can be presented with different accuracy according to needs, and the Key details, and model accuracy can be modified at any time;

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  • Implementation method of model LOD based on point cache system
  • Implementation method of model LOD based on point cache system
  • Implementation method of model LOD based on point cache system

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Embodiment Construction

[0025] Such as Figure 1-Figure 5 As shown, a method of implementing model LOD based on the point cache system includes: reducing the number of faces of the model by repeatedly compressing the edges of the model; simplifying the history of the model by rearranging the points and faces of the model, Rebuild the model according to the required accuracy, draw the low-precision model through points and surfaces and cache it. When rebuilding the model, load the corresponding cached model for the low-precision model; according to the continuous variable LOD, the reconstruction model point of control;

[0026] For each loaded mesh node, it is constructed by the hesLodMesh node, and the accuracy of the model is adjusted through HesLodMesh.Level0fDetail;

[0027] Such as figure 1 As shown, if you want to build a high-precision No. 1 line, you need 9 points and 8-segment lines. When you simplify to No. 2 line, you only need 5 points and 4-segment lines. When you simplify to No. 3 line...

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Abstract

The invention provides an model LOD implementation method implementation method of a model LOD based on a point cache system, and the method comprises the steps: carrying out the repeated compressionof the edges of a model, so as to reduce the number of surfaces of the model; rearranging points and surfaces of a the model are rearranged to simplify the history of the model, reconstructing the model is reconstructed according to required precision, drawing a low-precision model is drawn through the points and the surfaces and cached, and for model reconstruction, loading a cached corresponding model is loaded for the low-precision model. Controlling p Points of the reconstruction model are controlled according to continuous variability of the LOD; the error after the reduction of the model surface is controlled through the curvature of the compressed vertex, the file can be presented with different precisions according to needs, key details are reserved, and the model precision can bemodified at any time.

Description

technical field [0001] The invention relates to the technical field of animation production, in particular to a method for realizing a model LOD based on a point cache system. Background technique [0002] At present, the cache formats supported by DCC software (such as Alembic Cache) do not have the function of LOD, and the low-precision model can only be obtained on the basis of the existing high-precision model through manual or built-in random area reduction function; [0003] Defects of manual surface reduction: long time; [0004] The built-in random surface reduction function defect: the surface reduction is too random, and the shape of the model is not guaranteed; [0005] The common defect of the above two methods: it cannot be modified in real time. Contents of the invention [0006] The purpose of the present invention is to provide a method for realizing model LOD based on the point cache system, which solves the problems of long time-consuming manual surface...

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Application Information

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IPC IPC(8): G06T13/20G06T17/00
CPCG06T13/20G06T17/00
Inventor 赵锐侯志迎张健
Owner 江苏原力数字科技股份有限公司
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