To solve the jitter and tear problems caused by single-precision floating-point errors in global scene rendering

a complete set of solutions is presented. First

a new coordinate origins is found by using the global quad-tree structure

avoiding the disadvantages of switching coordinate origins frequently; Second

the jitter problem is solved by transforming the coordinate and matrix in the new coordinate system; finally

the depth resolution is improved by using logarithmic calculation on the GPU

and the Z-Fighting problem is solved. The experiment results show that the proposed method can be a good solution to the problem caused by single-precision floating-point errors. It has strong adaptability

low complexity

and it is controllable with accuracy and efficiency advantages.