Topics

1

[Max] Bug Reporting / OSL, CoronaAO, mix different UVW channels

« on: 2022-01-16, 18:38:27 »

Hi,
Corona version is 7 hotfix 1 and 3dsmax2021.

Text and images to reproduce:

1)   OSL: Checker with UVW set to Map Channel 1.


2)   OSL: Checker with UVW set to World.


3)   OSL: Noise with UVW set to World.


4)   Mix using a CoronaMix. Ok.


5)   Mix using a OSL: Mix (color). Ok.


6)   CoronaAO set to Inside.


7)   Using the OSL: Noise as AO distance. Ok.


8)   Mix using a CoronaMix. Ok.


9)   Mix using a OSL: Mix (color). Issue.


I think there is an issue with UVW coordinates.
Only CoronaMix seems to be able to correctly read UVW coordinates passing through CoronaAO.

2

[Max] Resolved Bugs / Crash with Render only masks and animated CoronaCamera

« on: 2021-05-18, 22:28:21 »

In the attachments a crashing scene with an animated CoronaCamera and a Render only masks (disable shading) enabled.
The scene is crashing at frame 19 and in other points of the animation range 0-235.
There is also a regular PhysicalCamera with the same settings and animation and no crash.
Corona version is 6 hotfix 1 and 3dsmax2021.

Depth of Field, Vertical shift and Parabolic Image filter seems to be involved in the crash.

3

[Max] Resolved Bugs / VFB keyboard shortcut for switching render elements

« on: 2021-05-18, 16:52:04 »

Hi,
in the VFB the shortcut CTRL + PAGE UP switches the render element correctly, but also scrolls the render (if zoom is more than 100%).

To reproduce:

• show Corona VFB with a few active render elements
• MOUSE WHEEL UP to zoom
• CTRL + PAGE UP to switch to the previous render element in the list

Corona version is 6 hotfix 1 and 3dsmax2021

4

[Max] Resolved Bugs / MAXScript colorPickerDlg crash with Corona Improved Picker

« on: 2021-04-07, 17:08:39 »

MAXScript method colorPickerDlg crash the application when Corona Improved Picker is used.

5

[Max] Resolved Bugs / CoronaCamera

« on: 2018-06-06, 20:57:48 »

I have found a bug while animating CoronaCamera and its target.

I think the issue might be related to the target's orientation.
The target perhaps should not orient itself toward the Camera; this usually ends up in a loop.

I leave you a short screen-capture (1 min, no audio).

Note:
As a temporary fix, I parent the target under a locator, and I'm animating the locator instead.

6

[Max] Resolved Feature Requests / Warp Map (a shader for detailing procedural masks)

« on: 2015-12-08, 18:41:04 »

With warp map I mean a map that can distort a texture based on another texture.

This is a way to add detail to an ambient occlusion or a curvature map (check this other feature request).

As a reference you can look at the work that John Burnett has put on github.
I know that this plugin it is free and with the source code, but I would rather have it directly in Corona because:

• it is a plugin, meaning I have to hope that someone will update it in time when a new version of 3dsmax will came out
• it is a plugin, meaning I have to hope that the render farm supports it
• it is a plugin, each person on the team needs to have the same version (?)

Another take on this subject is the Transition node in Mari, but I still have to check what this node does.



I think that it would be useful to have a shader for detailing procedural masks.
What do think about this request?
Anyone sharing the need for this feature?

7

[Max] Resolved Feature Requests / Curvature Map

« on: 2015-12-08, 18:38:25 »

A curvature map can be used to generate procedural wear on the edges of objects.

As a reference for the workflow you can read this article by Neil Blevins and you can take a look at how the Quixel Suite 2.0 generates its masks for layering materials.

Currently you can bake the curvature into the mesh vertices or buy a plugin like GeoMaps.

Personally I don't like these solutions because:

• you have to bake the curvature for each mesh you want to apply the shader on
• baking the curvature needs a quite detailed mesh to work
• baked curvature is geometry dependent, you have to re-bake when you change the mesh
• GeoMaps is a plugin, meaning I have to hope that they will update in time when a new version of 3dsmax or Corona came out
• GeoMaps is a plugin, meaning I have to hope that the render farm supports it
• GeoMaps is a plugin, each person on the team needs to have the same version (?)

I think that it would be useful to have a dedicated curvature map in Corona.
What do you think about this request?
Anyone sharing the need for this feature?