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October 15, 2019, 09:14:19 am

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Messages - kris392001

1
Bug Reports and Help / Re: SRTM Seafloor
September 27, 2018, 12:30:33 pm
Thanks for getting back to me, I've only just had the chance to start looking at this again.

And sadly, I'm still not getting it. I can raise the seafloor from anwhere between 0 and 150m but I can't get a slope.

I've uploaded a diagram and the project in the hope that you can help me.

Thanks in advance.

Chris
2
Bug Reports and Help / Re: SRTM Seafloor
September 15, 2018, 10:56:16 pm
Thanks, that raises the flat seafloor to the level of the coast unless I'm missing something.

What I'm trying to do is a apply a gradient/slope from the coast level (140m) down to the current seafloor (0m) at a distance from the coast (500m?

Perhaps there is something I could do with blur and a mask.
3
Bug Reports and Help / SRTM Seafloor
September 15, 2018, 09:08:04 am
Hi All,

I'm starting to clean up some SRTM data and wondered if anyone had a method or macro for applying a gradient from 0 to the coast (which I managed to raise to 140m in Photoshop - see image). I tried putting a gradient mask around in Photoshop but the results weren't very satisfactory. I'd like to try and get a reasonably realistic seafloor.

Edit: I realise I could erode but I don't want to change the existing land form.

Cheers

Chris
4
Bug Reports and Help / Re: Trouble With PNG Masks
September 09, 2018, 03:29:42 am
Thanks for the offer, Pratyaksh, I appreciate it. Stephen got back to me and the answer turned out to be embarrassingly simple. I had assumed the the Mask Extents output should be used but it turned out I needed to use the Heightfield output on the File Input node.
5
Is this standard for World Machine support? I've had a ticket in for 5 days with no response!
6
Bug Reports and Help / Re: Trouble With PNG Masks
September 03, 2018, 01:59:57 am
Thank you again for your reply Pratyaksh.

With the terrain drop and guttering I am assuming it's not correct because the demo video www.youtube.com/watch?v=xG1gVlbLK8Q performs as I would expect. I understand this is a shape mask but still, I don't see why a bitmap mask should perform differently.

And with the masks, I don't use alpha channels. Raw, tiff, tga and PNG greyscale 16 and 8bit do not work. And I've had no response to a support ticket I left 4 days ago.

Chris
7
Bug Reports and Help / Re: Trouble With PNG Masks
September 02, 2018, 04:47:50 am
Hi Pratyakash, thanks for having a look for me.

You make it sound so easy, and it should be, but the only mask format I can get to work so far is a greyscale (8 or 16 bit) PNG  with a transparent background (see image 1) But it produces the gutter. With RGB Alpha, World Machine crashes, with white in place of transparent, it just masks the whole area.

I have tried with greyscale 8 and 16bit raw (see image 2) and that just has no effect. Moving on to other formats to try.

Edit: TIFF and Targa don't work.

This is getting somewhat frustrating.

Chris
8
Bug Reports and Help / Re: Trouble With PNG Masks
September 01, 2018, 05:33:34 am
Just another note - PNG masks cannot be black and white, this applies a mask to the whole image. They need to black through to transparent then they work but they seem to 0 out producing gutters around the mask, certainly when creating terraces (see image).

I'm going to try other formats. Any recommendations for the best mask format would be welcome.
9
Bug Reports and Help / Re: Trouble With PNG Masks
September 01, 2018, 02:42:30 am
Thank you Pratyaksh, that worked. I'm very happy - had to uncheck AND invert. The area in the forground of the image has terraces, the background not, though this is not the final configuration of the terraces, it proves the principle. It means I can now detail various parts of the height map  per their biome.

The only issue is some guttering at the edge of the mask. It has a hard edge and I'm going to assume I can solve this with a feathered gradient.

Edit: Actually, a gradient didn't help. It obviously takes the edge to be 0, is there any way to only allow modification only to the height range within the mask? A clamp or some such?

Cheers

Chris



10
Bug Reports and Help / Trouble With PNG Masks
August 29, 2018, 07:13:10 am
Hi All,

New user of World Machine here. I have a raw file height map and I want to apply terracing to a specific part for which I have a bitmap mask (saved as PNG - one with Alpha, one without). I bring in the mask through a file input node, set the size, tick interpret as RGB. On the node I set the display hint to Mask. All I have is 2 File inputs, an erosion generator, and a file output. I can see the mask (white for the area I want to terrace), it is in the right position. I plug the file input heightmap node into the erosion mask node, and generate. but the erosion is applied to the whole image.

I feel the steps I have taken are pretty logical, I followed the tutorial although that didn't deal with bitmap masks.


Can anyone tell me what I'm doing wrong?

Cheers

Chris