Interior Lighting in Corona for 3ds Max | Tutorial  

yes I also use do render in cycles everything by blender but now i have moved to enscap, d5 and lumion plus substance painter

Fully depends on the scene. See this question all the time.

@@mikedftv what are the factors that affect that?

Dean AL-Jackson amount of lights, amount of textures, details of model. Literally everything. White room with window and door. 10 passes, full baroque mansion. 500 passes.

@@mikedftv damn 500 passes for a baroque mansion.. that would take weeks to finish

before clicking rendering press F10 or Render Setup and along side the "View to render" see if the Lock is selected to fix the render frame.

If you use both, you will basically have 2 suns. Even though it might help in your scene (actually, I have no idea how, but let it be), you will have two global sources of light. Unfortunatelly, it's not possible on the planet Earth.

If you look at the hdri image, it contains blue in the sky. With the red of the sunset, plus the blue in the sky and because there is no direct sun light and the material is a plain gray. The result is a warm blue shadow. As a rule shadow's contain a blue cast. If the objects had different materials assigned to them the render would look far different because of the bounced light.

yes, It is not in the link.

It’s very difficult to hear, but it’s from the Chaos Group website :)