WOW - New 3.1 RT Features

[beenyweenies]

New – V-Ray RT GPU Features
· Hair & fur
· Subsurface scattering
· Displacement & subdivision surfaces
· Light Cache GI
· Anisotropic highlights
· UDIM textures
· Texture baking
· QMC sampling on NVIDIA CUDA devices

Was all of this in the last beta version and I just missed it? Holy cow, this is a serious game changer.

AWESOME WORK GUYS!

[savage309]

New – V-Ray RT GPU Features · Hair & fur · Subsurface scattering · Displacement & subdivision surfaces · Light Cache GI · Anisotropic highlights · UDIM textures · Texture baking · QMC sampling on NVIDIA CUDA devices Was all of this in the last beta version and I just missed it? Holy cow, this is a serious game changer. AWESOME WORK GUYS!

Thanks. We have quite a few more stuff as well, check the release notes for the full list.

[beenyweenies]

Thanks. We have quite a few more stuff as well, check the release notes for the full list.

Unbelievable. Thats... a lot of cool stuff.

[doark]

Congratulations to the whole team at Chaos Group for the extraordinary, remarkable and amazing work made in this service pack. Impressive.

https://youtu.be/28BvbUj2dag?t=1m1s
Watching the exciting video, I noticed that at the time (1min2s) has demonstrated the power of VRayLightMeter in conjunction with a custom script.

Just to know, I searched the new SP1 documentation but could not find him. The where can I find it?

Thanks, again astonishing work!

[bazuka]

Greatest release ever i just gotta check the bifrost implementation and you'll have 5*

[beenyweenies]

Greatest release ever i just gotta check the bifrost implementation and you'll have 5*

Yeah bifrost with NO MESHING. BAM.

[bazuka]

What about splash/foam particles?

[doark]

Congratulations to the whole team at Chaos Group for the extraordinary, remarkable and amazing work made in this service pack. Impressive.

https://youtu.be/28BvbUj2dag?t=1m1s
Watching the exciting video, I noticed that at the time (1min2s) has demonstrated the power of VRayLightMeter in conjunction with a custom script.

Just to know, I searched the new SP1 documentation but could not find him. The where can I find it?

Thanks, again astonishing work!

I enjoyed my lunch hour to write the code shown in the video. It worked well.
I do not know who did the code but all rights belongs to that person!

# Automatic exposure script
# Sets the selected VRayPhysicalCamera's exposure value according to the maximum value of a specified VRayLightMeter shape node.
# Automatic ISO - this variant does not modify apaerture (A), not shutther speed (S), but adjusts the ISO instead.
import math
import maya.cmds as cmds
import maya.mel as mel

# The name of the light meter shape node
lightMeter = "VRayLightMeterShape1"

# Get the highest value from the light meter
lux = mel.eval("vray getLightmeterMaxValue" + lightMeter + "total")

# Get the cameras A, S and ISO
ISO = cmds.getAttr(".vrayCameraPhysicalISO") 
A = cmds.getAttr(".vrayCameraPhysicalFNumber") 
S = cmds.getAttr(".vrayCameraPhysicalShutterSpeed") 

# Calculating EV for the illuminance (lux) at ISO = 100:
# lux = (2 ^ EV) * 2.5;
# EV = log2 A^2/5
EV = math.log((lux[0] / 2.5), 2)

# Iso Correction
EVc = EV + math.log((ISO/100), 2)

# Using Shutter Speed as intermediary for the new ISO calculation
Sc = math.pow(2, EVc) / math.pow(A, 2)

# Calculate and set the new ISO
cmds.setAttr (".vrayCameraPhysicalISO", ISO * (S / Sc))

For those who want to download the .py the link here:
VRayLightMeter_autoExposure.zip

[ivaylo.ivanov]

We didn't have time to research the new splash/foam. Only the fake coloring using ramps is supported.

[bazuka]

No big deal Ivaylo, im going to be free next week, so if you want we could make some tests, in case you have anything


cheers