Nothing really special about the image, just a test of the raw detail in my terrain and river mask. There is some stepping in the canyon floor. I suspect this may be related to my conversion process which is a bit of a hack due to my cheapness and not buying the latest version of GlobalMapper ;)
Still collecting data for the surrounding areas. Seems I got lucky when I started (6 consecutive connections to USGS) but it's slowed down by half so it's a bit more of a plod (but soooo much easier than getting individual 10m and 30m DEMs from Geocommunity). Each terrain set comprises about 6Gb of data and it looks like I might not have to resort to 90m SRTM for the larger terrains :)
Attached the tgd for anyone who want to see how I did the river ...mask image drawn from the slope mask (not included).
thanks a lot! I was looking for a good terrain to play with for the image I posted recently, this will help
I've finally got all of the data and will have a go at producing the extra files tonight.
Here's a close up of my river. I've been tossing up adding a slope restriction to help avoid glitches like those on the left bank (water surface going up rocks left of centre), although it also helps to see them on the first render to see if the mask really should be cleaned up more or if you can be lazy and try and hide it ;) I guess any flat areas of water away from the river could be passed of as puddles.
You'll also notice on the right shore that the water surface extends onto the bank in the "fuzzy zone" of the image mask. This was not deliberate, but I think it's pretty cool. All it needs is some fractal breakup in a reversed mask to make it less even.
The slope of the bank in this region is controlled by the difference between the two colour adjust shaders of the image mask and the difference in displacement between the river bed and water surface (0.5m in this case).... The river bed is displaced downwards first in the terrain section and then upwards for the river/lake surface.
I like the water.
Hi Bigben,
Amazing place, especially the second image is more attractive. Would you like to share some more pictures with us? IMO, it's not rocky mountain. I like these mountain.