One of the techniques used in many demo scenes is called ray marching. This algorithm, used in combination with a special kind of function called “signed distance functions”, can create some pretty damn cool things in real time.Signed Distance Functions The Raymarching Algorithm Surface Normals...
signed distance functionA novel composite algorithm of signed distance function (SDF) is proposed. The reconstruction of SDF is computational time-consuming and crucial for the application of the level set method, such as structural topology optimization. The composite algorithm ...
3.The signed distance method was used to transform the fuzzy model into a certain one,and an algorithm was developed to determine the optimal replenishment policy for the retailer.针对零售商需求不确定的情况,给出了在模糊环境下基于信用支付的库存模型,并运用符号距离法将模糊模型转化为确定模型,给出了...
We propose a differentiable sphere tracing algorithm to bridge the gap between inverse graphics methods and the recently proposed deep learning based implicit signed distance function. Due to the nature of the implicit function, the rendering process requires tremendous functi...
A fluid solver using signed distance function (SDF) for shape representation was developed based on the immersed boundary method to simulate incompressible... K Okita,K Ono - 《Transactions of the Japan Society of Mechanical Engineers》 被引量: 0发表: 2011年 AN IMPROVED ALGORITHM OF SIGNED DIST...
A signed distance func- tion is a continuous function that, for a given spatial point, outputs the point's distance to the closest surface, whose sign encodes whether the point is inside (negative) or out- side (positive) of the watertight surface: SDF ...
We propose a novel 3D spatial representation for data fusion and scene reconstruction. Probabilistic Signed Distance Function (Probabilistic SDF, PSDF) is proposed to depict uncertainties in the 3D space. It is modeled by a joint distribution describing
几何活动轮廓模型要求水平集函数(Level Set Function, LSF)在演化中保持为符号距离函数,即Ñ准 = 1.因为一旦水平集函数不再为符号距离函数,将导致数值迭代过程不稳定,继而得到错误的分割.为防止这种退化,一般在若干步迭代后重新初始化水平集函数,以将其重新置为符号距离函数. ...
object Algorithm { // distance: distance to surface intersection (if intersection was found) from start of ray. case class March (distance: Option[(Double, Material.ID)], settings: March.Settings, stats: March.Stats) object March { case class Settings (iterationLimit: Int, minimumStep: ...
Tolerance threshold used for early termination of the MPR algorithm. .. _option-sdf_iterations: :at:`sdf_iterations`: :at-val:`int, "10"` Number of iterations used for Signed Distance Field collisions (per initial point). .. _option-sdf_initpoints: :at:`sdf_initpoints`: :at-val:`int...