Microsolvers and DOPs Data | Fuat Yüksel

Microsolvers and DOPs Data | Fuat Yüksel | SIGGRAPH HIVE 2023

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Күн бұрын

Microsolvers are the low-level building blocks of simulations in Houdini's DOPs-Context. Learn all about the most important nodes and show how to use them one by one and how to read and manipulate DOP Data and the DOP Geometry Spreadsheet. Explore some of the mathematical concepts of GasMicrosolvers as well as practical examples built using single Microsolvers purely in DOPs. Discover Non-divergent Pressure Projection and how to art-direct and control fluid simulations by using arithmetic combinations of fields and data.
Download example files here: github.com/fuatyueksel/Houdin...
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00:00 Presentation
00:28 Gas Microsolvers & DOP Data
04:42 Gas Microsolvers
05:23 FLIP Solver H19.5
05:50 Gas Microsolvers Overview
06:15 DOP Data Type EmptyObject
06:38 EmptyObject Data Type: SIM_Object
07:17 DOP Geometry Spreadsheet
08:05 DOP Data: Viewport
08:36 DOP Data: Viewport Visualization
09:00 DOP Data: Solvers & Microsolvers
09:35 DOP Data: Solvers & Subdata
10:06 DOP Data: ModifyDataDOP
11:38 Gas Microsolvers
11:48 Microsolver: gasAdvect DOP
12:11 gasAdvectCL DOP / gasAdvect DOP: Trace Methods
12:58 gasAdvect DOP: Advect Vellum Cloth By Pyro Simulation
13:42 Microsolver: gasAnalysis DOP
14:17 gasAnalysis DOP: Divergence of a Velocity Field
15:17 gasAnalysis DOP: Divergence of a Velocity
15:38 Microsolver: gasProjectNonDivergent DOPs
17:24 gasProjectNonDivergent DOP - Helmholtz Decomposition
20:41 Microsolvers: Arithmetic & CSG Operations
21:08 Microsolver: gasCalculate DOP
22:45 gasCalculate DOP: SDF Combinations
23:54 Microsolver: gasConvexClipSDF DOP
24:22 gasConvexClipSDF DOP: SDF Combinations
25:13 gasConvexClipSDF DOP: Clipping Planes
25:45 Microsolver: gasLinearCombination DOP
27:06 gasLinearCombination DOP: Simple Euler-Integration on Geometry (Particles)
27:30 gasLinearCombination DOP: Integrate Geometry (Particles) over Time
28:49 Microsolver: gasIntegrator DOP
29:03 gasIntegrator DOP: Simulate Geometry by Custom Velocities
29:51 gasIntegrator DOP: Secondary Simulation on top of existing Simulation
30:24 Geometry & Particle Types in DOPs
30:54 Vorticle Particles
32:00 Microsolvers: gasVorticleForces DOP, gasVorticle Geometry, gasVorticleRecucle DOP
32:14 gasVorticleForces DOP: Attributes
33:58 Microsolver: gasSeedMarkers DOP
34:25 gasSeedMarkers DOP: Surfels
36:50 Microsolver: gasSpeedParticles DOP
37:20 gasSpeedParticles DOP: Particles per Voxel
37:37 gasSpeedParticles DOP: pscale Attrib
38:01 Microsolver: gasParticleMoveTolso DOP
38:25 gasParticleMoveTolso DOP: project points to an Iso-Surface, gasGeometryToSDF DOP: convert Geo to SDF
39:22 Microsolver: gasIntermittentSolve DOP
39:45 gasIntermittentSolve DOP: Frames Between Solve
41:13 gasIntermittentSolve DOP: Used in Vellum Drape-SOP
42:14 gasvorticleforces
43:48 Q&A
Fuat Yüksel is Head of FX at RISE | Visual Effects Studios. Together with the FX-Team, he lives his passion for physical phenomena such as large scale simulations, destruction, fluids and character-related dynamic solvers. Being a graduate in design and mathematics, he loves the combination of art and technology in CG-Maths and Physics. He enjoys finding technical and visual solutions and workflows together with the RISE Pipeline, Supervisors and Leads on a daily basis.

Пікірлер: 26

@pragmaticvfx 10 ай бұрын

Microsolvers are one of what makes Houdini so great! Thanks for the presentation Fuat!

@antoniopepe 10 ай бұрын

these are the notions I would like to see from these master users. not the usual beating of vellum or pyro that all do the same 🙏🙏🙏🔥🔥🔥

@syntheticperson 7 ай бұрын

Very helpful. Many thanks!

@borademir7294 10 ай бұрын

Golden! Thank you for sharing!

@arbikerimov 10 ай бұрын

Thanks for presentation !

@aeko 10 ай бұрын

Amazing presentation, thanks!

@nitzantregerman1482 10 ай бұрын

This is pure gold

@user-vw7zl7ho7i 10 ай бұрын

about that 10 year old reference, I think it's the 'building flip solver from scratch'..? that really gave me an insight of how micro solvers actually create fluid motion! Glad you could give us an updated version sir. Thank you for the lecture! I'll be sure to use that vorticle force whenever possible

@aeko 10 ай бұрын

Yeah it's called "Masterclass | Building Fluid Solvers from Scratch"

@HangYuriYangFX 10 ай бұрын

Just recently watched that video. Very insightful but at the same time surprised how much it hasn't changed since.. really hope Houdini can focus a bit more on improving the fx side of the software. new algorithms, speed etc. the previous real change was still 17.5.

@nicolaastanghe475 10 ай бұрын

@@HangYuriYangFX Ai solvers are comming soonish I think

@HangYuriYangFX 10 ай бұрын

@@nicolaastanghe475 of what?

@nicolaastanghe475 10 ай бұрын

@@HangYuriYangFX I don't know, maybe convolutional networks are slower.

@YanivGorali 10 ай бұрын

Great presentation

@jrwilliams 10 ай бұрын

lots of great info

@AlejandroEcheverryB 10 ай бұрын

Amazing Presentation Fuat!

@krzesimirdrachal9222 10 ай бұрын

Thanks for that! Also not sure if mentioned on presentation, but lots of microsolvers (best example is gas vortex confinement) have another network inside > good for studying of workflow and how data is applied to fields. Think there is change in H19.5, you have to click allow editing of contents to go inside (think before simple double click was enough) Cheers!