Hello Everyone,
I was wondering if you can help me on my Houdini project regarding flip sim.
The effect is very similar to Igor's RISE Project: https://vimeo.com/82942136 [vimeo.com]
For some reason my ship is getting little to no collision and I can't figure out why. It used to work when the flip tank had depth but looking at other people's videos online, nobody has depth in their fliptank. Do you think you can take a look at my project file let me know what you think ? been trying to figure this out for a while with little to no help on forums.
Thanks in advance,
Tarun Dhiman
Found 15 posts.
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Technical Discussion » Flip Sim Collision
- Tarun Dhiman
- 16 posts
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Technical Discussion » Whitewater Particle count
- Tarun Dhiman
- 16 posts
- Offline
Quick question,
Where exactly do I find the particle amount for my Whitewater sim? I can find my main fluid particle count through the fliptank but I'm not sure about Whitewater.
Thanks in advance.
Where exactly do I find the particle amount for my Whitewater sim? I can find my main fluid particle count through the fliptank but I'm not sure about Whitewater.
Thanks in advance.
Technical Discussion » Windows to Linux Conversion
- Tarun Dhiman
- 16 posts
- Offline
Hey Everyone,
I decided to switch over from Windows 7 to Linux Mint 17 because I have heard from a lot of forums that it's better for large scale fluid simulations.
I finally got Nvidia drivers to work at build 352 and Houdini finally recognizes my GTX 980 for OpenCl.
But for some reason when I open my .hip file that I created on Windows inside Linux, it doesn't seem to read my simulation data. What I mean by that is when I try to start to render a flipbook, my collision geometry doesn't react to my fluid tank anymore, it just goes right through it as if nothing is happening.
Can someone please explain why it's doing that now that I switched over to Linux?
I decided to switch over from Windows 7 to Linux Mint 17 because I have heard from a lot of forums that it's better for large scale fluid simulations.
I finally got Nvidia drivers to work at build 352 and Houdini finally recognizes my GTX 980 for OpenCl.
But for some reason when I open my .hip file that I created on Windows inside Linux, it doesn't seem to read my simulation data. What I mean by that is when I try to start to render a flipbook, my collision geometry doesn't react to my fluid tank anymore, it just goes right through it as if nothing is happening.
Can someone please explain why it's doing that now that I switched over to Linux?
Technical Discussion » Fluid Sim Optimization
- Tarun Dhiman
- 16 posts
- Offline
Hey Everyone,
I'm at the point of my fluid sim of where I want to render the bgeo's of three simulations; whitewater foam and bubbles, whitewater spray, and the main sim. I just want to make sure that before I start doing so, that my scene is fully optimized for each simulation (for example something that may be is checked-on, in which is killing CPU or RAM usage unnecessarily).
I did an initial test and just for the whitewater foam and bubble sim it took 6 hours for only 60 frames. There are 32 million points for this fluid tank.
My specs are
CPU: i7 5930k
GPU: GTX 980 4GB
RAM: 32GB 2400mhz DDR4
1TB SSD 850 PRO
Take a look at the file below and let me know what you think, thanks!
I'm at the point of my fluid sim of where I want to render the bgeo's of three simulations; whitewater foam and bubbles, whitewater spray, and the main sim. I just want to make sure that before I start doing so, that my scene is fully optimized for each simulation (for example something that may be is checked-on, in which is killing CPU or RAM usage unnecessarily).
I did an initial test and just for the whitewater foam and bubble sim it took 6 hours for only 60 frames. There are 32 million points for this fluid tank.
My specs are
CPU: i7 5930k
GPU: GTX 980 4GB
RAM: 32GB 2400mhz DDR4
1TB SSD 850 PRO
Take a look at the file below and let me know what you think, thanks!
Technical Discussion » Multi Texturing Help
- Tarun Dhiman
- 16 posts
- Offline
Technical Discussion » Multi Texturing Help
- Tarun Dhiman
- 16 posts
- Offline
Hey Everyone,
I know this is a simple question , but I have yet to find a solution for this..
I have a 3d model, in which it contains a bump, specular, and diffuse map all with the same UV's. Now on programs like Maya and 3DS Max I can apply all three textures easily and they would overlay each other nicely. But for some reason when I try to do the same thing in Houdini, only one texture can be applied to the object. I'm trying to apply the different textures to the whole object not just individual parts.
Any idea on how to get this done? Thanks in advance
I know this is a simple question , but I have yet to find a solution for this..
I have a 3d model, in which it contains a bump, specular, and diffuse map all with the same UV's. Now on programs like Maya and 3DS Max I can apply all three textures easily and they would overlay each other nicely. But for some reason when I try to do the same thing in Houdini, only one texture can be applied to the object. I'm trying to apply the different textures to the whole object not just individual parts.
Any idea on how to get this done? Thanks in advance
Technical Discussion » Lighting Help
- Tarun Dhiman
- 16 posts
- Offline
Hey everyone,
I have a spaceship in my scene that will have lights and I don't mind compositing a glow effect in post, but if I were to render out the geometry of where the lights are located solely, then lights behind the object where the camera can actually see will be shown as well. How can I make sure that only the lights that will show are the ones the camera can see at a specific time?
The first picture shows the geometry with the blue colored lights and the second shows the lights by itself. Notice how you can see all the lights now since the rest of the geometry is disabled
I have a spaceship in my scene that will have lights and I don't mind compositing a glow effect in post, but if I were to render out the geometry of where the lights are located solely, then lights behind the object where the camera can actually see will be shown as well. How can I make sure that only the lights that will show are the ones the camera can see at a specific time?
The first picture shows the geometry with the blue colored lights and the second shows the lights by itself. Notice how you can see all the lights now since the rest of the geometry is disabled
Technical Discussion » Texturing Help
- Tarun Dhiman
- 16 posts
- Offline
matthias_k
I forgot to post this earlier but yes that was the solution the problem! I found it earlier while looking Houdini's documentation, but thank you for the quick response!
I forgot to post this earlier but yes that was the solution the problem! I found it earlier while looking Houdini's documentation, but thank you for the quick response!
Technical Discussion » Texturing Help
- Tarun Dhiman
- 16 posts
- Offline
Thanks for the response.
Everything seems to work now, however there is one more problem I'm getting. For some reason when I render I see these black circles on the geometry. The locations of the black circles are exactly where the lights are on the ship, any reason why it's doing that?
Look at the two pictures, the viewport looks fine but the render has the circles..
Everything seems to work now, however there is one more problem I'm getting. For some reason when I render I see these black circles on the geometry. The locations of the black circles are exactly where the lights are on the ship, any reason why it's doing that?
Look at the two pictures, the viewport looks fine but the render has the circles..
Technical Discussion » Texturing Help
- Tarun Dhiman
- 16 posts
- Offline
Sounds good, thank you for the response!
I've loaded another model through FBX and all the materials have nodes, which is exactly what I wanted. But how do I assign the texture map to each of the materials? I looked around and I couldn't find it..
I've loaded another model through FBX and all the materials have nodes, which is exactly what I wanted. But how do I assign the texture map to each of the materials? I looked around and I couldn't find it..
Technical Discussion » Texturing Help
- Tarun Dhiman
- 16 posts
- Offline
Hey Everyone,
I'm still fairly new using Houdini and getting use to the workflow. I found a 3D model online and I wanted to use it in Houdini. It's initially a 3DS Max file and I know I can convert it to an .OBJ, but how do I get all the textures loaded onto in Houdini? I've attached the 3D model with its components as reference.
Any help would be appreciated, thanks.
I'm still fairly new using Houdini and getting use to the workflow. I found a 3D model online and I wanted to use it in Houdini. It's initially a 3DS Max file and I know I can convert it to an .OBJ, but how do I get all the textures loaded onto in Houdini? I've attached the 3D model with its components as reference.
Any help would be appreciated, thanks.
Technical Discussion » OpenCL: Won't change from GPU to CPU
- Tarun Dhiman
- 16 posts
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Technical Discussion » OpenCL: Won't change from GPU to CPU
- Tarun Dhiman
- 16 posts
- Offline
Tried all that but still doesn't work.. I'm running Houdini 13 and I downloaded and installed the opencl_runtime_15.2_x64_setup.msi. I doubt it's because my 5th Gen processor..
Technical Discussion » PyroFX Simulation Help
- Tarun Dhiman
- 16 posts
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Hey Everyone,
So I started to roughly render out a simulation I created, but for some reason after around 50 frames the explosion just kind of stops. I honestly don't know what the problem is, it might be a parameter that I haven't changed. Is there a way to lengthen the duration of a simulation to whatever I want?
Attached is a .mov preview of what I'm talking about. For the last 10 frames you can see the simulation just stops…
So I started to roughly render out a simulation I created, but for some reason after around 50 frames the explosion just kind of stops. I honestly don't know what the problem is, it might be a parameter that I haven't changed. Is there a way to lengthen the duration of a simulation to whatever I want?
Attached is a .mov preview of what I'm talking about. For the last 10 frames you can see the simulation just stops…
Technical Discussion » OpenCL: Won't change from GPU to CPU
- Tarun Dhiman
- 16 posts
- Offline
Hey everyone,
Here are my computer specs for reference:
ASUS X99 Motherboard
I7 5930k 3.6 ghz
GTX 980 4GB VRAM
32GB DDR4 2400 MHZ
1TB SSD
I started running a PyroFX simulation and every time I do so, OpenGL crashes after a certain time (around 50 frames). I've looked online and people have said that I don't have enough VRAM on my GPU. If that is the case, how can I allocate more VRAM? The division resolution of the sim isn't that high either (.05).
Every time I even open up the file I get this error right away:
OpenCL Exception: Failed to create compute grid. (-4)
OpenCL Exception: Failed to create compute grid. (-4)
OpenCL Exception: clEnqueueNDRangeKernel (-4)
OpenCL Exception: clEnqueueNDRangeKernel (-4)
OpenCL Exception: clEnqueueNDRangeKernel (-4)
OpenCL Context error: CL_MEM_OBJECT_ALLOCATION_FAILURE error executing CL_COMMAND_NDRANGE_KERNEL on GeForce GTX 980 (Device 0).
I've also tried using the CPU instead of the GPU because I would have more memory. (http://www.sidefx.com/docs/houdini13.0/news/13/opencl) [sidefx.com] When I put the specific environment variable in I get an error in Houdini saying:
OpenCL Exception: Could not create OpenCL device of type (HOUDINI_OCL_DEVICETYPE): CPU on platform vendor (HOUDINI_OCL_VENDOR): Intel(R) Corporation (-6)
I know I put the information in the correct place because I checked Houdini's Command Line and it was on there. It's pretty frustrating not being able to run a sim for good amount of time on pretty decent machine without Nvidia telling me that it crashed. Not really sure how to fix any of these problems, I am a new user by the way.
I have also attached the file I used to run the simulation.
Thanks for the help in advance!
Here are my computer specs for reference:
ASUS X99 Motherboard
I7 5930k 3.6 ghz
GTX 980 4GB VRAM
32GB DDR4 2400 MHZ
1TB SSD
I started running a PyroFX simulation and every time I do so, OpenGL crashes after a certain time (around 50 frames). I've looked online and people have said that I don't have enough VRAM on my GPU. If that is the case, how can I allocate more VRAM? The division resolution of the sim isn't that high either (.05).
Every time I even open up the file I get this error right away:
OpenCL Exception: Failed to create compute grid. (-4)
OpenCL Exception: Failed to create compute grid. (-4)
OpenCL Exception: clEnqueueNDRangeKernel (-4)
OpenCL Exception: clEnqueueNDRangeKernel (-4)
OpenCL Exception: clEnqueueNDRangeKernel (-4)
OpenCL Context error: CL_MEM_OBJECT_ALLOCATION_FAILURE error executing CL_COMMAND_NDRANGE_KERNEL on GeForce GTX 980 (Device 0).
I've also tried using the CPU instead of the GPU because I would have more memory. (http://www.sidefx.com/docs/houdini13.0/news/13/opencl) [sidefx.com] When I put the specific environment variable in I get an error in Houdini saying:
OpenCL Exception: Could not create OpenCL device of type (HOUDINI_OCL_DEVICETYPE): CPU on platform vendor (HOUDINI_OCL_VENDOR): Intel(R) Corporation (-6)
I know I put the information in the correct place because I checked Houdini's Command Line and it was on there. It's pretty frustrating not being able to run a sim for good amount of time on pretty decent machine without Nvidia telling me that it crashed. Not really sure how to fix any of these problems, I am a new user by the way.
I have also attached the file I used to run the simulation.
Thanks for the help in advance!
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