Dark lines/areas in Vray water texture
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Hey everyone!
Ive been trying to render a scene in Sketchup 8.0 using Vray (version 1.5 I think) that has a large water surface. Besides slowing down the render time significantly because of the reflections, I also get all sorts of weird lines and dark areas in the surface (check the attached image to see what I mean).
The water surface is a single surface that is grouped. I tried creating a basic rectangle that cuts through the model at the same height, but I got weird spots near the edges where it meets the 'solid' model.
Anyone ever had the same problem? Ive tried searching the net but couldnt find this issue yet. Any help will be much appreciated!
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What you are seeing is your displacement map. It's a really small scale because the way it is tiling. In order to see the scale of the map, you need to make a diffuse map using that same texture and set the transparency to AColor - then set it to white. SU doesn't recognize AColor and will keep the map in your viewport so you can see it in real scale but when VR renders it, it will not show up. This trick can be viewed on VR4SU Youtube page somewhere.
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if you are using displacement, then what you are seeing is triangulation of your plane. You would need to subdivide your water face into much smaller, and as square as possible areas to avoid the sharp lines that you see. One way would be to start with a sandbox terrain for your water plane.
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40th or Jenny had done this tutorial how to correct this here..
http://sketchupvrayresources.blogspot.com/2011/09/tutorial-displacement-subdivision.html
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