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Found 6 results

  1. Hi, I have quite a specific question. What would be a good and straightforward way to make a grid's divisions and aspect ratio depend on an image I am to use in an Attribute from Map SOP to color it? My aim at the moment is a HDA that let's the user choose an image from the hard drive, adds it's colors to the grid and calculates the divisions of that grid and the aspect ratio of that grid based on the image. Currently it seems to me I have to jump through using either Python, COPs context or VEX shader context, although it seems like something that perhaps is somehow still doable in only SOPs and VEX/VOPs. I don't have nothing against doing it in COPs, shader VOPs or Python, I just haven't thought of a straightforward way to get information from one of these areas to SOPs. Under shader VOPs there is a Resolution node that should give these numbers perhaps in the most straightforward way, and there are the COP specific VEX functions ixres and iyres and inputs in the COP VOP node, but at the moment the way VEX and VOPs work in COPs seems different enough from SOPs that I haven't found out a good way to get these numbers into SOPs. Same problem with using Python node in SOPs. Any ideas on how best to tackle this?
  2. Pyro Resolution Fix

    Hi, I have setup a pyro, its resolution seems nice and crisp but as the bounding box expands the resolution seems to fall down and everything looks voxelized. How to setup the pyro in such a way that it maintains a certain resolution according to the size of the bounding box. I have attached a link of the pyro video, you can clearly see the fire becoming lowres as the boundingbox expands. Please let me know how to fix it.
  3. Change resolution breaks pyro sim

    Hey! I believe my problem is simple, so hopefully someone can help. The attached file is a pyro simulation. It runs fine, right? I want a higher res sim, so I go to the smoke object and set the resolution from .08 to .06, and some how it stops working!! If you go to the visualization, you can see that the fuel is there, but somehow there is no heat or temp or anything. What's going on here? How does changing the resolution stop the sim from working? Thanks flame_test.zip
  4. Here is a simplification of my problem: I have two side-by-side volumes, and one of them has voxels that are twice the size of the other's. Or, another way of wording it – I have two volumes that are the same size, with resolutions e.g. 10x10x10 and 20x20x20. When I render the image, there is a seam between the two volumes. This seam is not there if the two volumes were have the same voxel size. How do I remove this seam? Is there something I can do in the shader? seam.hipnc
  5. hi there!! I've melted an object using flip fluid solver and I was wondering if there is a way to apply a "low" sim resolution to the "high" (original) mesh. In another project using vdb fracture I could be able to apply the low sim to the original mesh by connecting the original geometry into the second input of convert vdb node and checking "transfer surface attributes", but I don't know why this method doesn't works for me for my flip fluid simulation. If it helps in this video: https://vimeo.com/85149964 The person who upload it, comments this: "I cheated a bit by wrapping the low res simulation to my high res geometry " Can anyone help me?? Thanks!!!
  6. Hi everyone! I have done a melted simulation that works perfect using flip fluid from object. The problem that I have is that the mesh of the original object change. I want to melt a perfect cube, but the corners are smoothed. Is there a way so I can melt the original mesh in high resolution?? thanks!
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