{"title":"基于矢量间角度计算的物理正确的光反射率模型的建立","authors":"Y. Zavalniuk, O. Romaniuk, A. Snigur, R. Shevchuk","doi":"10.31474/1996-1588-2023-1-36-45-50","DOIUrl":null,"url":null,"abstract":"The new physically correct reflectance model based on angle calculation between vectors is proposed in this article. The main bidirectional reflectance distribution functions groups characteristics are analyzed. The models based on angle calculations allow to approximate the etalon Blinn model with low degree function. The approximated Blinn model was modified with correction coefficient in order to increase the realism level of the epicenter zone glow formation. The computer program for the modified model correction coefficient calculation was developed. The modified model normalizing coefficient for the energy conservation law adherence was proposed. The dataset for the coefficient formula selection using TuringBot software was created. The normalizing coefficient formula was selected from calculated variants. The absolute error value between 1 and hemispherical integral reflectivity value is not bigger than 210^(-2). The developed physically correct reflectance model can be used in high realism level computer graphics systems.","PeriodicalId":104072,"journal":{"name":"Scientific papers of Donetsk National Technical University. Series: Informatics, Cybernetics and Computer Science","volume":"58 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"THE DEVELOPMENT OF PHYSICALLY CORRECT LIGHT REFLECTANCE MODEL BASED ON ANGLE CALCULATION BETWEEN VECTORS\",\"authors\":\"Y. Zavalniuk, O. Romaniuk, A. Snigur, R. Shevchuk\",\"doi\":\"10.31474/1996-1588-2023-1-36-45-50\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The new physically correct reflectance model based on angle calculation between vectors is proposed in this article. The main bidirectional reflectance distribution functions groups characteristics are analyzed. The models based on angle calculations allow to approximate the etalon Blinn model with low degree function. The approximated Blinn model was modified with correction coefficient in order to increase the realism level of the epicenter zone glow formation. The computer program for the modified model correction coefficient calculation was developed. The modified model normalizing coefficient for the energy conservation law adherence was proposed. The dataset for the coefficient formula selection using TuringBot software was created. The normalizing coefficient formula was selected from calculated variants. The absolute error value between 1 and hemispherical integral reflectivity value is not bigger than 210^(-2). The developed physically correct reflectance model can be used in high realism level computer graphics systems.\",\"PeriodicalId\":104072,\"journal\":{\"name\":\"Scientific papers of Donetsk National Technical University. Series: Informatics, Cybernetics and Computer Science\",\"volume\":\"58 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Scientific papers of Donetsk National Technical University. Series: Informatics, Cybernetics and Computer Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.31474/1996-1588-2023-1-36-45-50\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Scientific papers of Donetsk National Technical University. Series: Informatics, Cybernetics and Computer Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31474/1996-1588-2023-1-36-45-50","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
THE DEVELOPMENT OF PHYSICALLY CORRECT LIGHT REFLECTANCE MODEL BASED ON ANGLE CALCULATION BETWEEN VECTORS
The new physically correct reflectance model based on angle calculation between vectors is proposed in this article. The main bidirectional reflectance distribution functions groups characteristics are analyzed. The models based on angle calculations allow to approximate the etalon Blinn model with low degree function. The approximated Blinn model was modified with correction coefficient in order to increase the realism level of the epicenter zone glow formation. The computer program for the modified model correction coefficient calculation was developed. The modified model normalizing coefficient for the energy conservation law adherence was proposed. The dataset for the coefficient formula selection using TuringBot software was created. The normalizing coefficient formula was selected from calculated variants. The absolute error value between 1 and hemispherical integral reflectivity value is not bigger than 210^(-2). The developed physically correct reflectance model can be used in high realism level computer graphics systems.