nandus opened this issue on Nov 09, 2002 ยท 8 posts
nandus posted Sat, 09 November 2002 at 4:50 PM
Attached Link: http://www.picturetrail.com/gallery/view?p=999&gid=1337143&uid=766163&members=1
Hi, I stumbled into a problem creating a flyby animation over a large terrain that must have some woods. I've tried everything, textures, flipboard trees mixed with 3D ones, Bryce spiked terrain, and nothing worked well. As a last resort, I decided to try some Leveller filters, and finally I found one method that produced the best results so far - see the quick and dirt example image I did in the above link. The trick (using Leveller): * Make one 1024x1024 flat terrain * Make an irregular selection with the Lasso tool * Apply the bubble filter to the selection, set to about 6500 intercepting bubbles with sizes from 60 to 100% of the desired pixel size. * Create one 1024x1024 smooth fractal terrain * Combine both terrains using Combine>Add * Export to Bryce as PGM * Apply Verdant Hills material and render From that camera distance, only the borders of the forest seems to need some improvement. In my project I'll add some lower and sparse 3D trees/bushes to soften the border. Perhaps there is some Photoshop filter with similar results that I don't know about, and in that case the blend could be done through layers operations. Feel free to DL the JPG map and try it for yourself. What do you think? Fernandottops posted Sat, 09 November 2002 at 4:58 PM
Nice problem solving Fernando. I really like the bump mat with the bubbles filter.
tuttle posted Sat, 09 November 2002 at 5:17 PM
Looks excellent, good idea. You could use 3D or Bryce trees for the border & get the best of both worlds...
Aldaron posted Sat, 09 November 2002 at 6:09 PM
The terrain on the left
The terrain on the right is the same without the noise.
nandus posted Sat, 09 November 2002 at 7:26 PM
Thanks Aldaron, My problem whith this method is that it creates "trees" all over the terrain. It is almost impossible to get rid of the unwanted ones with that awful Bryce's brush in a large map. Another con: I use a fast slope combine to apply the foliage texture exclusively to the "trees" and the grass texture to the ground, so I need very smooth tree bumps. Fernando
AgentSmith posted Sat, 09 November 2002 at 8:13 PM
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Aldaron posted Sat, 09 November 2002 at 8:39 PM
The top one is as explained above.
The bottom are spikes (1 click), smooth, raised.
Use the small brush and make it hard then select the lowest height setting to erase the "trees" you don't want. Then clip the terrain at the bottom using the clipping tool.
madmax_br5 posted Sun, 10 November 2002 at 5:45 AM