Just 6 simple steps then you can connect to our powerful machine, install your Houdini and render engines (like Redshift, Octane, V-Ray, or Arnold, etc.), add your license then render/ revise your project as you want. From single RTX3090, to dual 3090s and even 4x, 6x, 8x RTX3090s, we always have enough machine and config to serve your project. IRender is proud to be one of very few render farms support Houdini rendering with powerful RTX3090. These tips and tricks can help you manage your fluid simulations more efficiently when trying to deliver fluid shots in a timely manner, while still maintaining a high level of quality.

You use a lower-resolution collider during simulation, and then run this function in a post-simulation wrangle to make the fluid look like it’s interacting with a high-res collider.Ībove are some hacks from Kevin Pinga when it comes to simulating fluids with Houdini FLIP solver. mixing the P of the points, influenced by a mapped = production, there is a more practical usage. getting the distance and the parametric position of the closest pointįloat dist = P2= primuv(1,”P”,p_prim,p_puv) Here’s the code snippet used in the wrangle: Clamping the distance to a really small value will help you to speed up calculations. In some cases, you can also run this directly on the meshed surface itself, especially in shots where the collision surface is see-through (for example, pouring liquid into a clear glass). In the case of the example above, we extract the position of the high-resolution collision surface and use it to push particles towards the surface.

When combined with primuv(), you can extract any attribute from the parametric UVs of the object! In a VEX or VOPs context, xyzdist() calculates the distance to the closest interpolated point on a surface. Together with primuv(), xyzdist() is by far the most useful.

Houdini box trick