Topics

31

[Max] I need help! / UVWR - Additional Bump

« on: 2021-06-08, 01:12:16 »

It seems like the Corona UVW Randomizer Texmap requires that greyscale bump maps passed into the Corona Normal Texmap as additional bump data, must also be passed into a Corona UVW Randomizer Texmap to generate correct tiling for the additional bump map.

I assumed that would not be necessary, but without also passing the greyscale bitmap into a UVWR, artifacts appear.

In this example, the 'WAVES' bitmap is assigned to the second UV channel and the 'NORMAL' bitmap is assigned to the first UV channel.




I feel like the UVWR is often more trouble than its worth - there seem to be a lot of 'gotchas' in terms of normal blending, integrating falloff maps, secondary UV channels, etc. Invariably I'm left with the appearance of a grid of tiles blended with some radius; the actual blending paradigm hides the seams, but produces other artifacts instead.

32

[Max] Daily Builds / Discussions about people's expectations, Corona developement, life and other things

« on: 2021-06-04, 19:48:19 »

Seeing tonemapping get shelved for v8 = 😔

33

[Max] I need help! / Multiply UV tiling with controller - Corona Bitmap

« on: 2021-06-03, 20:32:51 »

Is it possible to use a controller in the Slate Material Editor to scale (multiply) the UV tiling parameters of a Corona Bitmap?

For example,

Corona Bitmap #1 | U: 1, V: 1.4
Corona Bitmap #2 | U: 1, V: 2.1

Use a controller with scalar parameter: 2, the new coordinates become:

Corona Bitmap #1 | U: 2, V: 2.8
Corona Bitmap #2 | U: 2, V: 4.2


This is equivalent to adding a UVW Xform modifier

34

[Max] I need help! / Ornatrix Crash on Startup

« on: 2021-04-07, 21:35:19 »

I have a scene with a semi-complex Ornatrix groom which is accessing Corona shading elements (Corona Hair Material, Corona Distance, Corona Mix, etc.) and crashing on start-up.

Not sure if there is a TDR-like issue where the memory is tripping when loading the scene, or something similar.

Ornatrix version 7.1.1.26089
Corona version 7 (DailyBuild Mar 30 2021)
3ds Max 2020

35

General CG Discussion / AllCity 3d Models - 2021

« on: 2021-03-24, 21:22:54 »

In 2015 some of the best furniture models I had seen were from AllCity - that was 6 years ago.

What is the current gold standard for scanned furniture models for high-end visualization - has a competitor emerged?

36

General CG Discussion / Object Paint + Physics

« on: 2021-02-04, 17:46:24 »

Looking for a workflow solution to paint objects and apply physics simulation to those objects to generate natural (physical) placement.

• There is an implementation of this already called PhysX Painter, but I have not found it useful for production, i.e. not suitable for medium / high poly objects.
• There is a straightforward but tedious solution using Tyflow, but it is not easily scalable or user friendly:

Code: [Select]

3ds Max Object Paint -> assign multi/sub-object material to scattered objects -> apply TyFlow (birth objects, physx shape (convex hull), physx collision (mesh) -> simulate
TyFlow does not currently support Corona Renderer and does not plan to, AFAIK.

37

General CG Discussion / [RESOLVED] DOF in Post - DOF Pro

« on: 2021-01-30, 11:18:42 »

Looking for hot takes about DOF Pro for doing zdepth-based DOF in post as opposed to in-camera. The only other alternative I know of for PS DOF in post is Lenscare (Frischluft), but the usability and feature set is decidedly lesser.

I ask because I recently needed to do some artistic DOF (i.e. not physically based) and the quickest option was to rely on a PS / z-depth approach.

38

[Max] I need help! / Bloom Kernel

« on: 2021-01-29, 05:57:01 »

Is it possible to access the default bloom kernel used by Corona Renderer in the VFB bloom and glare settings?

39

[Max] Feature Requests / Bloom & Glare - Export Custom Aperture

« on: 2021-01-29, 05:56:08 »

It would be nice to be able to export (.EXR) a custom bloom aperture, now that the bloom kernel is fully customizable.

40

[Max] I need help! / Bake VFB Tonemapping to LUT

« on: 2021-01-22, 05:21:24 »

Is it possible to (at least) bake the VFB tonemapping settings (exposure, highlight compression, white balance, etc.) into a LUT that can be used in external DCC?

41

[Max] I need help! / [RESOLVED] Bake LightMix into Scene Lights

« on: 2021-01-22, 03:53:41 »

If you adjust the lightmix at all from 255, 255, 255 and the intensity from 1.0, how can you retroactively apply those changes to the lights in the scene - essentially "baking" the changes into the scene lights and obviating the need for the LightMix altogether thereafter(?)

42

[Max] Feature Requests / Organize Render Elements

« on: 2021-01-20, 22:45:11 »

Pretty sure I've seen this requested at least once, but chiming in to add my two cents:

It would be nice to be able to move up or down render elements in the Render Elements dialog. Right now there is a sort of 'hack' by which you can delete a render element, undo (ctrl+z), and it will automatically sort that render element to the bottom of the stack. In this way, you can organize the render elements list, but of course, this is not a user friendly solution.

43

General CG Discussion / RichDirt for Corona Renderer?

« on: 2021-01-19, 23:35:38 »

Anyone with experience using RichDirt for Vray been able to convert RichDirt for use with Corona Renderer?

enRichPro (link)

44

General CG Discussion / Photoshop Greyscale Color Settings - Metal, Gloss, etc.

« on: 2021-01-16, 10:22:59 »

Reset Photoshop recently and I can't recall what the go-to settings are for working with greyscale PBR maps (e.g. metalness, glossiness, roughness, etc.). I almost always import these maps into Max without automatic gamma correction (e.g. Override 1.0).

What is the correct color setting to select from this menu to maintain consistency with the import workflow as I've described it above - to maintain visual consistency?

45

[Max] I need help! / How to Use UDIMs - Corona Renderer (RC6)

« on: 2020-12-18, 09:03:52 »

What are best practices for a UDIM workflow in 3ds Max Corona Renderer (RC6)? Pass each map into a composite node and offset the tile for the respective UDIM?