LOL Paul are you serious ? you cant see the difference of highlights on the sphere ? The fliped envirionment map causes the highlights to blend LOL just look both edges are now purple !!! The render above it all the colors are where they should be. If you dont think I actually fliped the light map ? maybe I'm faking it? LOL why bother? TRY IT. Try loading the test rigs exactly as they present. You will see. By the way caths map of the light probe , because it uses red yellow and blue seems brighter on the yellow and red directions. blue is colder red hotter. making an illusion the light is stonger in the red and yellow directions. as seen in #40. And further the yellow Front section is a warm color so the center in all directions is bright ! :)) You know dosch sells a hdri cd , with matching back grounds . I've been using them in lightwave for ten years , you dont flip the maps you rotate the model HDRI light never moves , but as you rotate the model it appears the light has changed. Some one said it above and they where right .... find the matching spot using numbered grids. Basically we have to accept that this is FAKE light made by software , histograms generated by light maps , and programming code. And live with how it actually applies and how to make the best illusion from it. I am certain flipping the map is wrong but if you cant see it kill the specular , reflect , radiosity ect so be it. look what flipping the map did to the real skin shader on the girl between post 76 correct and 77 fliped incorrect. Cath your original idea works better than flipping because as my very last picture shows the light hitting the ball mixes with the reflection on the background and makes mud of the highlights (PURPLE EDGES). thats all wrong. look the orange on your lattitude chart is yellow now , the skin has lost it reds ect. Paul you of any one should see that clearly. By the way dont see a mention for the fact that flipping the map still doesnt stop the light from comming from the front. only shifts it from left to right. To actually make the light come from behind we need a black centered light map , with bright edges. But now it wont match the environment. so easy to prove. we are leaning so much. Thanks. The Rabbit