PURPOSE: A recognition feeling characteristic extracting method and a similar shader detecting method and a device thereof are provided to compare and analyze several results without recognizing factors and an option of each shader, thereby improving user's convenience. CONSTITUTION: A rendering node analyzer(10) analyzes the rendering node of a shader. An attribute classifier(20) respectively classifies attributes. A characteristic extraction equation deriving unit(30) respectively derives recognition feeling characteristic extraction equations respectively. A distance function calculator(40) calculates similarity between two shaders.
COGNITIVE FEATURE EXTRACTION METHOD AND SIMILAR SHADER SEARCH METHOD AND ITS APPARATUS