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Terrain holes aren't painted at brush center

Discussion in 'World Building' started by Rowlan, Jun 7, 2019.

  1. Rowlan

    Rowlan

    Joined:
    Aug 4, 2016
    Posts:
    4,274
    Been trying the new terrain hole feature. It doesn't seem to use the center of the brush. Additionally I don't think that showing the brushes palette at all is useful. And there is either a hole or not, opacity is irrelevant from what I understand.

    hole.png

    By the way, should we post things about the holes here or in the 2019.3a forum?

    Also, thanks for the feature :) It's quite impressive. This sphere still bounces off the terrain, if I move the sphere a tad to the right, it falls through

    collider.png
     
    Last edited: Jun 7, 2019
    Rowlan, Jun 7, 2019
    #1
    hippocoder likes this.

  2. wyattt_

    wyattt_

    Unity Technologies

    Joined:
    May 9, 2018
    Posts:
    424
    Opacity does work but since it's basically a clip operation and the surface mask texels are either 0 or 1 (to clip or not to clip) it feels different from the rest of the paint tools. If you change opacity you and paint, you'll see that the threshold of the applied brush mask is actually modified.

    The surface mask also uses the same texture dimensions as the control texture iirc which is why it doesn't necessarily match up with the brush mask. That's just a product of converting from world space brush to the terrains texel space
     
    wyattt_, Jun 8, 2019
    #2

  3. wyattt_

    wyattt_

    Unity Technologies

    Joined:
    May 9, 2018
    Posts:
    424
    I also think the clipping it done based on the center of the texel meaning the brush opacity needs to be high enough to mask when sampled from uv + .5 * _TexelSize.zw
     
    wyattt_, Jun 8, 2019
    #3

  4. hippocoder

    hippocoder

    Digital Ape

    Joined:
    Apr 11, 2010
    Posts:
    29,723
    I think it would feel better if more central under the circle. Don't want to make a mountain out of a holehill.
     
    hippocoder, Jun 8, 2019
    #4