My gpu is gtx1080ti.
1. viewport sometimes turn to black when i press render
After finishing my setting, i press render and enscape viewport turn black. It stuck just like the photo i sent . I waited at least 20 mins the viewport just stuck in black, until i restart my sketchup and enscape it can finally render.
2. There are many spots on my render photo
Just like the photo i sent. There are many spots on my render photo. Even when i increase my exposure the spots are still there.