But in general, no, Store with the irradiance map, include not worth it 😉
It is necessary to adhere to our recommended renderer settings in the POI including for the DMC a Sampler , changing them only when a specific need and in its sole discretion. I, for one, is less than 0,01, Noise threshold is not set. On the other hand, I can do more to speed up the rendering test .
If you think that you need to reduce - to decrease. Information in the lesson more than enough so that you can make their own decisions about it. If you do not think or do not know whether - do not touch. Leave our recommended values😉
Hello!Firstly, there is an unshakable rule: "Light must never intersect with geometry." That in your example is broken.Secondly, in a normally decorated interior, the window opening should always have a window model with a window frame and glass in it. In this case, the window frame will play the role of a bounding box that does not give the GI a glow to the environment, shine through the slopes and the ceiling behind them.Thirdly, according to the first point and simply on the basis of practice, there is no need to put light just like the window opening, and even the dimensions of the glass in the window frame.You can easily make light smaller dimensions. This will not affect the quality or rendering realistic.And then, in your pure white box, despite the presence of 2 huge openings - half darkness. This means that GI, outside the window, you barely shine. If you bring it to the level at which it will not become dark in the room, even with VRayLight portals, especially if it is not pure white but with dark materials, then only GI glow from the same VRaySky will burn you and slopes and ceiling. So VRayLight here in general, nothing to do with when it comes to peresvetah on the ceiling.On this, completely get rid of them on the render, without twisting the color of the mapping, in the direction of deterioration of the contrast and saturation of the entire render - will not work. The only way out of this situation is rendering in HDRI and the subsequent post-processing of the over-exposure zone. It sounds scary, but, in practice, it's very convenient and simple😉
Hello! We do not have registration .
As for your question, it is quite possible that by placing the portal and changing the render settings, the rendering time has changed. The portal always rendered longer than VrayLight in standard mode. At this point there is nothing you can do. So long as your computer does not become a "wah-wah ass peach", or you do not use portals and revert to the old settings, of course, to the old quality renderiga, or update the computer.
Naturally, 35% - 6 hours is long. But you can vozozvatsya recommendations for test DMC sampler settings . Lower the rendering quality and then gradually increased to as long as the ratio does not quality / time will be acceptable to you😉
Abstract question, because you did not show the exact settings Lite. I can just randomly say that you did not activate Simple tick.
In short, in the VRayLight Skylight portal mode, it does not shine its light, and the color of Environment for him. For example, you in the Environment is some HDRka , so he did not shine in a different color, and the color of the HDRki, as if projecting itself through its glow, ie it acts as a portal environment for a light. So now, for your portal is not a pure Environment, a frame with glass, through which all the noises, etc. It breaks the light from the Environment. So he makes a noise. It is enough to activate the check Simple and VRayLight will ignore the geometry behind it, an indirect working as a pure portal Environment. At the same time and become lighter.
If, however, you should tick the Simple, it is still to be understood that the light to sample on the basis of what is happening behind the VRayLight, render engine is still more difficult than directly emit rays of light from the Light's container without relying on additional information. Therefore, light is not in the portal mode noise is less than the portal draws information from the light behind him.