VRay ocean shader for PhoenixFD 3

by Hammer Chen

This is my material settings for ocean. Sim with PhoenixFD 3.

無偏差（ unbiased）算圖的真相

原文 / the truth about unbiased rendering
作者 / ChaosGroup lab
編譯 / Hammer Chen

多年來，大家都在爭執到底是偏差式算圖（biased）或是無偏差式算圖（unbiased）哪個比較好。『無偏差式的算圖』這個詞已被用了許多次了，幾乎等於精確算圖的代言人。事實上幾乎所有的算圖器其實多多少少都帶有偏差，即使是那些宣稱是無偏差的算圖器。 因為偏差式算圖真的比較快，更智慧，也不代表就不精確。為了要更了解這點，我們分成幾個方面來了解：

Phoenix FD 3 vs FumeFX 4 Comparison

by Hammer Chen

last update: 2016/10/04

	FumeFX 4.0	PhoenixFD 3.0 official build
price	USD 845*	USD 830*
Simulation capability	fire, smoke and explosion	Fire, smoke, explosion, water, high viscosity fluid, Infinite ocean with splash and foam, beer foam, boat wake
UI	Floating UI	Rollout
cache file path	Absolute path	Relative path to scene, $(implicit)
Adaptive Grid	YES, plus expanding grid option	Fully controlled, fit in cam view
Opacity for smoke and fire	One for fire, one for smoke	shared One for fire, one for smoke
Particle shader		PHXFoam, able to render (large amount of) particle
Default Object Interaction	Inclusive list	Exclusive list
Ocean Texture Map		PhoenixFDOcean Tex
Color gradient / curve  editor	user friendly	difficult friendly with advanced controls
Particle source control	user friendly, radius with curve editor	through particle size or "Custom Prt Size"
Gravity helper	YES, straightforward and effective
Other forces		PlainForce, BodyForce and WaveForce
2D Simulation		YES
Viewport preview		accurate viewport preview auto reduction auto range
Interactive simulation (Simulation not locking the gui)	YES (start form FumeFX 4.0)	YES
Amp. resolution	Wavelet	Resimulation: wavelet, interpolate
retime	YES, Post Processing	YES, resimulation /time blend: general purpose or slow down Mode: Linear, cache index, Loop Frm.Blend: Interpolation, velocity
Workflow for resim / select cache	straightforward, Sim Mode	Automatic switch caches, might be confusing for beginner
Inertial forces	YES, Use Grid Motion	YES, can link sim grid to moving object, i.e.: moving torch
Dynamic solvers	Solvers: CG and QCG Advection: Default, Advanced (fields), Advanced(fields and vels)	Conservation: Direct Symmetric, Direct Smooth and Buffered, PCG Symmetric Advection methods: Classic, Slow moving, Forward transfer, Multi-pass and FLIP
Advanced vorticity	vorticity II	Massive vorticity
Fluid Mapping	YES
heathaze		YES
displace voxels post-sim	NO	YES
Fire create smokes	YES	YES, Fuel: enable burning
Smoke buoyancy	Sensitive to dynamic, unlimited	range from 10 to -10
Cache optimization	Drop unused channels by post processing	1)Storage quality control (similar to jpeg compression) 2) No-Export Channels option in the Resimulation
Import Field3D, openVOD	support	support
Export PRT	support	support
Export Alembic		support
Self-illuminate acceleration	Illumination map	Grid-based
Render acceleration		probabilistic shading
Black-body shader	YES	YES, Allowed gradual transition between the default Black Body Fire model and an artistic model using the 'Physically Based' option
Sharpness control	Sharpen strength for fire and smoke	Sampler type: Box, Linear and Spherical Content Smoothing for separate channel
Render elements	FumeFXfire, FumeFXsmoke, velocity, zdepth	YES for Maya version
Integration with Particle Flow	FumeFX Birth, Follow, Test	PhoenixFD Birth, Force, Test
Integration with thinkingParticles	FumeFX Birth, Follow, Probe
GPU Preview	Floating viewport	Through 3dsmax extended viewport or Display on current viewport
Solid mode		YES
Network simulation	through backburner "...it is possible to send many variations of the same simulation across the network and pick the result the user likes the most..."	Backburner or Deadline, "... several simulations with varying parameters are simulated, each on a separate computer..."
Spline Follow	YES	YES, follow path
Render Warps	YES
Effectors	YES
Learning curve		Lots of parameters, take time to learn New Quick Presets provides several quick settings as good starting point
Renderer compatability	mentalRay	V-Ray
Customer support		Offical forum and Facebook group

*Please check official website for their local store / sales details.

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Phoenix FD 2.2 vs FumeFX 4.0 Comparison

Phoenix FD 2.2 vs RealFlow 2015 Comparison