Oliver Stock
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Ocean to Flip to Unity Dec. 15, 2019, 10:53 a.m.
Wow thank you very much! The tutorial looks promising. I'll try that out tomorrow.
For the current state: I gave up on VAT (for this particular case)/simulating FLIP and instead opted to just bake an alembic simulation. This is what it looks like right now in Unity. I think it is ok, but will definitly check out the linked video because it looks like the better and more fitting approach.
Essentially I created a big highres circle, did a polyreduce that keeps the polys near the camera and smoothly transitions to lower resolution on the edges. This gets displaced by the ocean specturm-SOPs and looped by the game-dev make-loop-SOP (which is super useful). In Unity I made a shader in shader graph that uses normal maps to create ripples on the alembic animation.
Since I dont use FLIP anymore the buoy is “simulated” by a crappy self-coded solver for now. I guess it will stay self-coded but should be less crappy next iteration.
The file is attached for anybody interested. As soon as I get to implement the stuff from the tutorial I'll post another update.
@deleting by bounding box: I was hoping that there was a more elegant way with attributes coming from the simulation itself. Bummer.
For the current state: I gave up on VAT (for this particular case)/simulating FLIP and instead opted to just bake an alembic simulation. This is what it looks like right now in Unity. I think it is ok, but will definitly check out the linked video because it looks like the better and more fitting approach.
Essentially I created a big highres circle, did a polyreduce that keeps the polys near the camera and smoothly transitions to lower resolution on the edges. This gets displaced by the ocean specturm-SOPs and looped by the game-dev make-loop-SOP (which is super useful). In Unity I made a shader in shader graph that uses normal maps to create ripples on the alembic animation.
Since I dont use FLIP anymore the buoy is “simulated” by a crappy self-coded solver for now. I guess it will stay self-coded but should be less crappy next iteration.
The file is attached for anybody interested. As soon as I get to implement the stuff from the tutorial I'll post another update.
@deleting by bounding box: I was hoping that there was a more elegant way with attributes coming from the simulation itself. Bummer.
Ocean to Flip to Unity Dec. 5, 2019, 3:52 p.m.
Hey,
I am doing a project where I am trying to get something like the picture below in Unity, with FLIP-sim done in Houdini (01.jpg). I followed this tutorial (https://youtu.be/nnujlxEoSDg) to get an ocean that then is simulated in FLIP. So far so good. But when I am trying to port this to Unity, a couple of problems arise:
1) If I use VAT I only get an unlit shader, that does not support transparency. Which seems to be bad for rendering oceans in real time. Is there a way around this?
2) If there is no way around it, are alembics the weapon of choice? If so, is there a way around those ugly holes pictured in 02.jpg? Are those holes cause by the narrow band and will be less severe if I increase the narrow band?
3) More general: How do I delete all polygons, that are not part of the surface after the particlefluidsurface-SOP?
Hopefully you have some pointers and/or ideas how to tackle the topic, thanks!
Hip-File attached as well.
I am doing a project where I am trying to get something like the picture below in Unity, with FLIP-sim done in Houdini (01.jpg). I followed this tutorial (https://youtu.be/nnujlxEoSDg) to get an ocean that then is simulated in FLIP. So far so good. But when I am trying to port this to Unity, a couple of problems arise:
1) If I use VAT I only get an unlit shader, that does not support transparency. Which seems to be bad for rendering oceans in real time. Is there a way around this?
2) If there is no way around it, are alembics the weapon of choice? If so, is there a way around those ugly holes pictured in 02.jpg? Are those holes cause by the narrow band and will be less severe if I increase the narrow band?
3) More general: How do I delete all polygons, that are not part of the surface after the particlefluidsurface-SOP?
Hopefully you have some pointers and/or ideas how to tackle the topic, thanks!
Hip-File attached as well.