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  1. The earliest version of Lightwave I still have...

    The earliest version of Lightwave I still have installed is 11.6, here's the node setup for it using your uploaded files:

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    and here's just the Node Editor portion:

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    In the LW...
  2. Works fine for me on LW 2019.1.5 using your...

    Works fine for me on LW 2019.1.5 using your uploaded BMP images:

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    The B&W mask image has its Color inverted in the Image node since White makes the Fg Color opaque:

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    What...
  3. I think the Alpha channel in your BMP files is...

    I think the Alpha channel in your BMP files is broken. There are some online articles about PhotoShop breaking alpha support in BMP files. You might try saving as TIFF or TGA.

    Attached is a...
  4. Great possibility for faking the fog with the...

    Great possibility for faking the fog with the ground plane motion blur!

    Since you don't want / need textured fog, you may also get OK results by using a very large Step Size on the Volumetric null...
  5. Be sure to use VPR to observe the Surface if...

    Be sure to use VPR to observe the Surface if alpha / masking is included. The Texture Shaded Solid mode doesn't apply the alpha channel.

    If that doesn't work, you might also try an image format...
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    After you posted your excellent Christmas card...

    After you posted your excellent Christmas card rendition of the Light Painting technique, I worked up a process in LW2019 for doing what you say that works fairly well but I never perfected it. I...
  7. Mouse vs. Tablet setting in Display...

    Mouse vs. Tablet setting in Display Options=>Interface tab, maybe?

    mTp
  8. Make sure LW is actually using your NVidia card...

    Make sure LW is actually using your NVidia card by right-clicking the Modeler executable (or a shortcut to it) and selecting the NVidia processor as its default:

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    If you bring up the...
  9. The simulation looks quite good so far. Yes, the...

    The simulation looks quite good so far. Yes, the pivot point of the object to be instanced will run down the spline. You'll notice in the modeling tutorial that the box is modeled with it's base on...
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    With HVs you can use Gradient type Textures on...

    With HVs you can use Gradient type Textures on the Particle Age to control various parameters, such as HV size, color, density, etc. A quick sample scene using a single Emitter and Sprite-style...
  11. Forgot to attach the sample LW2015 scene /...

    Forgot to attach the sample LW2015 scene / object!

    mTp
  12. You might be able to set the Bulb's Transparency...

    You might be able to set the Bulb's Transparency up a little bit, crank up the Intensity of the Light, and turn on Radiosity in the Light=>Global Illumination tab to achieve something like you want. ...
  13. Yes, as lertola2 says, I'd recommend trying to...

    Yes, as lertola2 says, I'd recommend trying to get this done using Spline Control. A quick sample scene is attached.

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    MOV file: 146486

    The "spraying" of...
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    As Denis said, this is easier with a "base" bulb...

    As Denis said, this is easier with a "base" bulb which is instanced. The Instance Info node's ID or Random Scalar can be used to generate a random color per instance.

    I've attached a LW2019...
  15. Since LW already adds "Maker Note" metadata to...

    Since LW already adds "Maker Note" metadata to the rendered files, you could make up a list of all the render settings you'd find useful and submit an Enhancement Request to allow for an optional...
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    I reproduced this problem four times in a row...

    I reproduced this problem four times in a row using the following steps under LW2019.1.4 on Windows 7:


    Invoke Modeler fresh with the Layers panel already up (i.e. F7 prior to exit last time)
    ...
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    OK, great! Hopefully, it's an easy fix! mTp

    OK, great! Hopefully, it's an easy fix!

    mTp
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    OK, thanks. Unfortunately, at the "trusted...

    OK, thanks. Unfortunately, at the "trusted interface" level (such as inner loop code) if a caller violates that trust it may be the only desirable error handling technique is to crash and find the...
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    Yeah, without access to the source code...

    Yeah, without access to the source code (including maps), it's all guesswork for me. RE: parameter validation, handling error states, etc. there's always a problem with robust code being slow. At...
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    No, disabling ShellFolderFix doesn't remedy the...

    No, disabling ShellFolderFix doesn't remedy the problem.

    After disabling ShellFolderFix, the stack for the thread that had the ACCVIO (Exception #: 0xC0000005) is identical with the stack with...
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    Reproducible for me every time on LW2019.1.4...

    Reproducible for me every time on LW2019.1.4 using the steps described, both on my laptop and tower PC. Attached is the DebugDiag text file, which might help LWDG find / fix the problem.

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    If you're running Windows, you could download the...

    If you're running Windows, you could download the DebugDiag tool, install it on your system, set it up to capture crashdumps for Layout, Modeler and Hub. The process crashdump(s) themselves are too...
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    My experiments with real-world tinted plastic is...

    My experiments with real-world tinted plastic is that the light reflected from the surface is not colored. You may be asking about "caustics" which are internal reflections where the light actually...
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    Thanks! Hope it helps! BTW, if a wide Emitter...

    Thanks! Hope it helps!

    BTW, if a wide Emitter isn't desirable, the wide horizontal spray pattern can also be attained using a small square Emitter and oscillating the Emitter in Heading and...
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    Of course, it depends on the effect you're trying...

    Of course, it depends on the effect you're trying to achieve, but simply having a stream of "paint" come from a shaped nozzle to cover an object is feasible with just ParticleFX. A quick LW 2015...
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