thinkingParticles 6 DROP 7 Tut#1 : SurfaceForce by Edwin Braun
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SURFACE FORCE OPERATOR Drop 7
This is one of Drop 7 major update feature that deforms and animate a simple 2D plane into 3D particles effects with SurfaceForce Operator. Tutorial by Edwin Braun.
Let's dive right into SETUP: Overview
SURFACE FORCE:
- add the Force dynamic set
- pick a standard 2D plane ( parameters adjust as your requirements )+ Wave Modifier (animated phase value). You now see a pre-test of waves running through the object. The waves will affect the particles above it)
1) You can control via the object axis where forces can affect up, etc)
2) using different type of forces
3) the force multiplier ; you can increase the multiplication to 5 or decrease to 1.
( So the forcefield strength will affect the particles as you desire)
- intensity (Type of force such as 'pressure' / 'lift' /.... )
- under Show, add Directional force to the setup, and the possible Force Sum.
(other selections under Type of force : parallel / tangential / directional / attenuation )
- Attenuation : help control using a standard Alpha gradient so '0' means No Force and 'white area' means Full Force. When you enable Attenuation, you can see the guides that help control how it works, e.g., where you wish the FX to occur and where not to have any effects.
NEXT - NEW SCENE
SIMULATION DYNAMIC SET
U_Deflector - maintain the particles bounding box e.g., if you want particles arranging themselves into a pattern of choice. See that the surface deformation occurring real time on the 2D plane now affects the particles above ! You can modify according to angle of deformation; calculate the vectors and force field vectors.
DISPLACEMENT FX - SWIRL
NOTE: if we let this simulation carry on, it will eventually gather sufficient speed and dissipate like a gaseous effect.
VELOCITY CONSTANT
NORMAL CONSTANT
PRESSURE CONSTANT
WHAT IS SHOW:
Show helps you to Visualize as you tweak, how the Force Vector will affect the particles and help predict the effects it will take. You can also adjust Scale, under Attenuation to ‘50’, for example, which makes it parallel to the surface and you will see a rotational movement. You can use this to create GALAXY style effects.
FLUID SIMS
Throw this in the mix ! With FluidSolver the particles, you gain a BINDING Force for your particles. So the particles are no longer gaseous now but has greater surface tension and acts as a fluid. And you can create all kinds of amazing fluid-like effects and all of it based simply on a 2D bitmap! TURN ON SURFACER : you see the 3D look with the nice fluid ripples.
2D CHECKER MAP
Let’s use checker’ and see what we can do. Same deal, go to Gradient Ramp Parameters and control the sharpness of the contour on the plane . Adjust TILING (U.V. Coordinates to 4 or 3 as you wish). Now view the Tiling effect happening on the Checkerboard 2d plane. You get an amazing localised effect! You see little whirlwinds / twisters by changing the 2D texture map with rising particles thru SurfaceForce (remember we used the Parallel combined with Tangential SurfaceForce to create this FX)
VOLUMETRIC LOOK
To get this, turn on the Surface View and you now see it ! All these fast and east effects straight, controlled simply via 2D texture maps! You can create tons of amazing effects from your library of texture maps /Material Editor.
lastly, let's try a CELLULAR TEXTURE MAP
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