AnsonSavageMaybe I am wrong , but I think only Redshift renderer can sharing VRAM between multi GPU right now
Hi!
I don't know a ton about how VRAM sharing works in general, so maybe this is a bad question.
If I have two NVIDIA RTX 4090s with 24 GB of VRAM each, could that increase the effective VRAM to 48 GB when rendering in Karma?
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Technical Discussion » GPU VRAM sharing in Karma
- happybabywzy
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Technical Discussion » For each Connected Piece random scale per piece?
- happybabywzy
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Technical Discussion » Any example for Pcunshaded and Pcexport node in SopVop ?
- happybabywzy
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cncverkstad
Old stuff .
... Just curios for what you need that??
I think its for use only in vop-shop-shader- context. When importing point cloud in,like texture for and compering P and N in for different Stuffs, in this case Occlusion. Maybe .. :S
Thank you for reply , I am a teacher and recently I am trying to learn every geo vop node then demonstrate to my students,but I still confusing about those two node , curios how to use them
Technical Discussion » Any example for Pcunshaded and Pcexport node in SopVop ?
- happybabywzy
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Technical Discussion » Why?
- happybabywzy
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Konstantin Magnus
Your input vector points upwards already, that's why it gets reflected down.
Thank you for your reply , it helps a lot
Technical Discussion » Why?
- happybabywzy
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protozoan
Your incoming @N has the wrong direction for your desired output. It needs to point downwards, like (-1, -1, 0). Direction is important for the vex reflect function.
Thank you for your reply , it helps a lot
Technical Discussion » Why?
- happybabywzy
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Hi, I use Reflect Vop to reflect a vector to mirror direction with a normal vector , but why like this?
Edited by happybabywzy - June 4, 2023 06:39:54
Technical Discussion » How to use WhileLoop and DoWhileLopp in VOP?
- happybabywzy
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cncverkstadThank you for your detailed reply , it realy help
to see different way and examples,you can find on houdinifx.jp/blog just search in vop category .Have FUn.
Technical Discussion » How to use WhileLoop and DoWhileLopp in VOP?
- happybabywzy
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animatrix_
There are entries in the TAB menu for While and Do While loops in VOPs.
I know how to create those node , but i dont know how to use them just like in VEX
Technical Discussion » How to use WhileLoop and DoWhileLopp in VOP?
- happybabywzy
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Technical Discussion » Why error?
- happybabywzy
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Soothsayer
It looks like a bug to me. Submit it and see what they say.
I have submitted a hair bug in Houdini17.5 , but they refuse answer because I am using cracked version
Technical Discussion » Why error?
- happybabywzy
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GOgraphRI still confuse about it , If I use FloatToVector4 to output value it works well , but report error when I output value by combine two vector2 to a single vector4 , Why?
But I guess you have some other VOPs output being floats
I attached a hip file
Technical Discussion » Why error?
- happybabywzy
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Soothsayer
Your parm at the end needs to be a vector.
Thank your for reply, I changed it to 4float(vector4) on Bind Export node, the error disappare but no attribute output,why?
Edited by happybabywzy - May 13, 2023 05:16:43
Technical Discussion » Why error?
- happybabywzy
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Technical Discussion » How dose "Is Finite" VOP work
- happybabywzy
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tamte
within Houdini there can occasionally happen that you'll get Inf or NaN values typically on your geo or images after some SOP or COP operator, which can then cause errors in subsequent operators
those will literally show as NaN, Inf or -Inf in the Grometry spreadsheet or color info picker
so Is Finite, Is NAN VOP as well as isfinite(), isnan() VEX function allow you to detect these and potentially replace or process them
that being said, most of the operators have internal guardrails or in case of VEX some illegal operations have fallback values for such cases, like x/0 may return 0 instead of Inf or NaN
so if you notice any of the operators producing such values you should report a bug
Thank your for your detailed reply
Technical Discussion » How dose "Is Finite" VOP work
- happybabywzy
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GOgraphR
a NaN is Not a Number.
And infinity is that "8" that's laying lazy on its belly...
if you continue the series 1/x where x gets closer to zero likefor (float i=1.0;i>0;i=i/10.0) print(1/x)
You'll get 1, 10,100,100,... 1e10 (meaning a 11 figure number) and eventually it will stop/throw with a +Inf for Infinity as a convention in math 1/0 is set as +Inf (Not 100% sure here, anybody??)
even better: Try this in your python shelli=1 while i>0: print(i, 1.0/i) i=i/10.0
a NaN is a number that is not defined at all. Like Inf-Inf=NaN.
But Inf+Inf=Inf
Then in math you have (in growing order)
- Natural numbers like 1,2,3,4,5,... (There is some times a fighting if 0 (zero) belongs to the Naturals or not)
- Integers ...,-3,-2,-1,0,1,2,3,...
- Rational Numbers a/b where a and b are both integers (examples )1/1,1/2,1/3,-2/-1,2/-2,-2/3
- Real Numbers where the "rest" of numbers lives, like PI(3.14159....), e(2.718281828459045...)
- Complex numbers a+b*i , where i=sqrt(-1) ( Also called imaginary when a=0 )
and then there come vectors, matrices, and tensors... Don't ask ! Calculus !!pi and i run into each other at a cross roads. i shouts at pi: "Get rational!!!" pi responds: "Get Real!!!" (Yes, I am one of those....)
and then... where epsilon<0 ...
Have a nice day !!
Thank your for your detailed reply
Technical Discussion » How dose "Is Finite" VOP work
- happybabywzy
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Technical Discussion » How to control PDG render order
- happybabywzy
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Technical Discussion » How to control PDG render order
- happybabywzy
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CYTE
Ah sry, i missunderstood your question. Have you tried to check cook frames as single work item?
I know "cook frames as single work item" ,I think it will take a week time to finish all render , but I need to turn off my computer at night , If i stop cook in the middle,and then recook again , it always prompt done .
Edited by happybabywzy - April 17, 2023 07:53:24
Technical Discussion » How to control PDG render order
- happybabywzy
- 83 posts
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CYTEThank you for reply , but it looks like doesn't work :<
Put down a wait for all node after your ropfetch.
Cheers
CYTE
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