Thanks for the detailed response. I will be revisiting this soon and will employ your suggested method.
In the meantime, I wonder if this couldn't be an option in the height field convert node?
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Technical Discussion » Convert HeightField not matching heightfield
- scaron
- 6 posts
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Technical Discussion » Convert HeightField not matching heightfield
- scaron
- 6 posts
- Offline
I am not sure the best way to do this… scale using the heightfield file node's uniforum scale parameter or a transform node? Also, when you say voxel spacing do mean scale up by a world space size of a voxel? ex. 1024x1024 disp map, with a size of 100 (size method = size of largest axis) a single voxel is ~0.0977 units in world space. scale up by that much then?
Some what related, but how about a tile split has voxel padding option built. Would it make sense to build in a voxel pad when loading heightfield files from other programs?
Thanks for your help!
Some what related, but how about a tile split has voxel padding option built. Would it make sense to build in a voxel pad when loading heightfield files from other programs?
Thanks for your help!
Technical Discussion » Convert HeightField not matching heightfield
- scaron
- 6 posts
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So shared points on the grid blend samples from at most 4 voxels? In the case of an interior grid point that is.
For me I ended up redoing all the work I had done previously in Houdini's terrain tools because I couldn't work out the way to get the one tile I wanted to do in Houdini to line up with the other tiles done in other programs. BUT even within a pure Houdini terrain workflow, I am still struggling to have a cropped section being up res'd and still lining up with neighboring pieces. For now I am just exporting the high res Houdini terrain as a displacement map and using that to displace a mesh which was generated from converting the whole terrain to a mesh, cutting out the piece I need, and making new uvs for it.
For me I ended up redoing all the work I had done previously in Houdini's terrain tools because I couldn't work out the way to get the one tile I wanted to do in Houdini to line up with the other tiles done in other programs. BUT even within a pure Houdini terrain workflow, I am still struggling to have a cropped section being up res'd and still lining up with neighboring pieces. For now I am just exporting the high res Houdini terrain as a displacement map and using that to displace a mesh which was generated from converting the whole terrain to a mesh, cutting out the piece I need, and making new uvs for it.
Edited by scaron - 2017年8月8日 01:55:36
Technical Discussion » Convert HeightField not matching heightfield
- scaron
- 6 posts
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I have a height map on disk, I loaded it with “HeightField File” node. I set the scale of the height field to 10. I then use “Convert HeightField” with default values and the edges do not line up. The height field clearly goes exactly 5 units out in each direction and lies precisely on a grid line when viewed from the top. When you see the converted height field there is an offset from that edge. In small scenes this isn't bad, but when you are using larger unites 100s of thousands the offset becomes quite large. Is this because the sampling is on voxel centers?
Thoughts? Suggestions for a workaround?
Houdini 16.0.562
Thoughts? Suggestions for a workaround?
Houdini 16.0.562
Edited by scaron - 2017年8月4日 19:45:28
SI Users » rebuilding catrice color
- scaron
- 6 posts
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hey sebastian
this looks like a great project to wrap your head around houdini… i hope you don't mind if i participate some? ie. attempt to replicate similar tasks?
of course we can share our findings here and help each other get a handle on this new process.
thoughts?
steven
this looks like a great project to wrap your head around houdini… i hope you don't mind if i participate some? ie. attempt to replicate similar tasks?
of course we can share our findings here and help each other get a handle on this new process.
thoughts?
steven
SI Users » Softimage to Houdini guides
- scaron
- 6 posts
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thanks for the pdf's jordi, these are really going to help the transition to thinking like a master magician.
i have been using ari's first steps videos, these pdfs, and peter's numerous videos.
i have been using ari's first steps videos, these pdfs, and peter's numerous videos.
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