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Houdini Lounge » Slider range
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- Yader
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In this context, is it possible to change the default range of parameters? Let's say I want the peak parameter go from -.1 to .1 as a default.
Technical Discussion » Labs File Cache - Gone?
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- Yader
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Solaris and Karma » Wireframe Shader inside Karma MaterialX Subnet?
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- Yader
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How about using Barycentric Coordinates (MtlX Term ray:hituv) and dividing by the distance to Cam (MtlX Term ray:hitdist) and then comparing against a thickness value?
Here's a setup where I am not 100% on the math, as I had to use some divide math where I don't think they're really needed. Nevertheless a shader only solution
Here's a setup where I am not 100% on the math, as I had to use some divide math where I don't think they're really needed. Nevertheless a shader only solution
Edited by Yader - Nov. 14, 2022 04:26:57
Technical Discussion » Texturing, maps, shading, patterns, and proceduralism
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- Yader
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Solaris and Karma » Geometry Light not interacting with SSS and Karma FogBox XPU
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- Yader
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Ah, the bounces. Thanks. Here's a cube with an emissive mtlx material and rendergeosettings set to treat is as a light source. It interacts now with the SSS material on the pig aswell as with the fogbox! In XPU mode
Solaris and Karma » Geometry Light not interacting with SSS and Karma FogBox XPU
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- Yader
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Is this a limitation for Karma XPU? And if so, will this be lifted in the coming versions?
Thanks in advance.
Thanks in advance.
Houdini Lounge » Easiest ACES-CG to SRGB Jpeg?
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- Yader
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Here's an easy way to burn in the Aces Look - save it as a default and you can render/save out jpg's/png's without going through COPs or a compositing app. First make sure you have the baked lut from ACES, it should be somewhere like aces_1.x/baked/houdini/ and it's called sRGB for ACEScg Houdini.lut. Load that into the flipbook LUT slot and turn Gamma either off or set it to 1 (doesn't seem to make a difference). Save as Default and hit Start. Oh, and your viewport should be set to Karma of course
Maybe some guru can chime in and help out with an expression for a timestamp in the filename.
So now, every time you create a flipbook you'll get the look from the viewport burned in.
Maybe some guru can chime in and help out with an expression for a timestamp in the filename.
So now, every time you create a flipbook you'll get the look from the viewport burned in.
Edited by Yader - Oct. 29, 2022 17:26:54
Houdini Lounge » Houdini 20 Rumors
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- Yader
- 36 posts
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While we're on Karma XPU/MtlX
- are there any plans for an up to date Physical Sky implementation for Karma?
- also decoupling IOR for Specular and Refraction would be nice to have for MtlX
- will we see Transmission Depth, Scatter etc. implemented for H20?
- will there ever be nested dielectrics for Karma XPU?
- are there any plans for an up to date Physical Sky implementation for Karma?
- also decoupling IOR for Specular and Refraction would be nice to have for MtlX
- will we see Transmission Depth, Scatter etc. implemented for H20?
- will there ever be nested dielectrics for Karma XPU?
Edited by Yader - Oct. 28, 2022 06:52:04
Technical Discussion » Save ramp presets
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- Yader
- 36 posts
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papsphilip
after lots of baby steps...
ok i finished the HDA for saving ramp presets and loading them back in.
Thanks a bunch for this, but I get an error message for folder where I have read/write rights:
Traceback (most recent call last):
File "FP::dev::Sop/ramp::1.2/save", line 1, in <module>
File "FP::dev::Sop/ramp::1.2, PythonModule", line 57, in Save
PermissionError: [ErrnoTraceback (most recent call last):
File "
And is it also possible to save RGB ramps?
Thanks in advance!
Edited by Yader - Sept. 9, 2022 05:21:14
MARDINI Daily Art Challenge 2022 » Day 7 Animation | Vellum | Cloth
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- Yader
- 36 posts
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Here's my little exploration
Vellum Cloth Day 7 Mardini 2022
Vellum Cloth Day 7 Mardini 2022
Edited by Yader - March 7, 2022 15:28:31
Houdini Indie and Apprentice » Curve from Concavity
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- Yader
- 36 posts
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Here's another way without any vex, but also utilizing the measure curvature node
It's not perfect, but should get the job done.
It's not perfect, but should get the job done.
Houdini Lounge » XPU tests (with sample scene)
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- Yader
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Technical Discussion » how to randomize radius on sweep node? Can't get it to work.
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- Yader
- 36 posts
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You just have to set a pscale attribute on your curves, one way is to use Attribute Randomize set to Primitive and then Attribute Promote to Points. Sweep SOP uses pscale to scale the radius on the given curves.
Technical Discussion » Vellum Rest Blend not working
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- Yader
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For anyone who stil needs a solution for this, lower your Blend value below 1.0 on the Vellum Rest Blend DOP, otherwise there won't be any effect of the Vellum Constraint Property DOP…
Technical Discussion » Using Open CL for get neighbours
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- Yader
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I dived into pop grains and discovered that one of the nodes doing the heavy work is the get neighbors (Geometry Vop) node. Now as grains usually deal with constant number of particles, wouldn't it lend itself naturally to have the neighbors computed by Open CL?
Wouldn't that be faster than vex?
Wouldn't that be faster than vex?
Edited by Yader - Nov. 14, 2017 09:04:24
Technical Discussion » Carve by length
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- Yader
- 36 posts
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Interesting challenge, here's another way of achieving the write on effect,
without utilizing python. By connecting all the elements, carving and then after deleting the connecting parts one can achieve the same effect.
without utilizing python. By connecting all the elements, carving and then after deleting the connecting parts one can achieve the same effect.
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