Dear Oliver
Thank you for your tips . I will try the test samples today . And I find another problem with my files . my xml file is klems quarter not klems full(Add support for half and quarter klems BSDFs). But I creat my xml file according to [quote=“mostapha, post:7, topic:2594”]
Simulate light diffusing materials [/quote]. I don’t know why . And according to the mostapha in (Add support for half and quarter klems BSDFs) , I have update my H+ to the newest version .
Thank you for your checking my files .
Best Wished to you .