Today I tried to render an image with some street materials. One material gives a moiré-effect (see image). I tried to increase the anti aliasing quality, unfortunately without any result. Does someone have a solution for this?
MicroStation v08.11.07.74. (Luxology) Antialias filter: gaussian Antialias samples: 254
I made some good experiences wenn I change the isometric-perspective into a camera-pespective with a lower camera viewpoint.
The less logical solution is editing in Photoshop.
Hi,
If you either post your dgn to our ftp site or emai it to me I'll take a look. You can also modify the Shading rate for the material which is in the Material Shading effects section. If you lower this number it will increase the antialiasing which occurs for rays which hit just this material.
HTH
Paul
in older versions there was a MipMap (or Multilevel) Texture Interpolation which usually helped in similar situations, it produced slightly blurring on texture. this was removed since introduction of Luxology, not sure if it is now set as default method, but you could either simulate it in PhotoShop or simply increase AA in Luxology (which, of course, takes time)
p.
/pt
Hi there, I think moiré is a general effect from overlaying meshes which do not match together,one mesh the floor, second mesh the resolution of the rendered image, I would try to make the stones much larger or the resolution higher to minimize the effect.
Increasing the resolution does something strange. The location of the moiré changes. In first place the moiré was places in the front of the model. Now the moiré appears especially on top of the bridge and in the back of the model. Changing the size of the stones isn't what I want. The right properties of materials is something my clients appreciate.
Positive is that it looks less visible, so for this time, the image is finished. A full resolution image can be found here.
Any comments / critics would be welcome.
Great rendering, where can I get those trees you are using? Are the 3D RPCs?
Thanks,
Jordan
Jerry Flynn´s reply in following thread could resolve your problem.
http://communities.bentley.com/products/microstation/microstation_visualization/f/19754/t/20826.aspx
Little update:
Ivo Blaauw= = = = = = = = = = = = =Look what the CAD dragged in...
My solution about this problem is: try another texture. Yesterday I got another street texture of a colleague and this one seems to be almost moiré-free. A full resolution version of this image can be found here. With Luxology the challenge of grass and water seems to be solved. Street materials are in my opinion, stil very difficult to get realistic.