From the course: SketchUp: Rendering with V-Ray 3

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Working with irradiance mapping, part 2

Working with irradiance mapping, part 2 - SketchUp Tutorial

From the course: SketchUp: Rendering with V-Ray 3

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Working with irradiance mapping, part 2

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- [Instructor] Although we have made a good start at getting a decent GI solution from the irradiance mapping engine, we would have to admit that we're still quite a way short of having a nice, clean solution and render. We still have some very obvious splotching coming from the irradiance mapping itself and you will also have noticed that with the addition of the sky portals, we have actually introduced quite a bit of fine noise or grain to the image. To deal with the first of those problems, the splotchiness, we could increase the resolution of our irradiance map here as we are still only making use of the low to medium settings that V-Ray gives us by default. The problem with increasing irradiance map resolution though is that we can sometimes add significantly to overall render times without necessarily making any significant difference to the splotching that we are seeing. Sometimes a better approach is to try and work with two of the other parameters that we have here, namely…

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