Heres the info ::

Traceback (most recent call last): File "/home/giorgio/blender-2.93.0-af940c68cbed-linux64/2.93/scripts/modules/addon_utils.py", line 382, in enable mod.register() File "/home/giorgio/.config/blender/2.93/scripts/addons/btoa/init.py", line 14, in register from . import props File "/home/giorgio/.config/blender/2.93/scripts/addons/btoa/props/init.py", line 2, in from . import light File "/home/giorgio/.config/blender/2.93/scripts/addons/btoa/props/light.py", line 7, in from .. import btoa File "/home/giorgio/.config/blender/2.93/scripts/addons/btoa/btoa/init.py", line 1, in from .bridge import * File "/home/giorgio/.config/blender/2.93/scripts/addons/btoa/btoa/bridge.py", line 11, in from arnold import * ModuleNotFoundError: No module named 'arnold'

Blender v2.92.1 BtoA Feature/Nodes Branch v0.0.5 Arnold SDK 6.1.0 Windows 10 2004

This value is set to 0.906332 by default when new material created or shader node added in the node editor. I believe it should be 1.

This is a new issue. I believe it was introduced very recently.

When you go to setup world materials now any material reference the same shading setup.

https://user-images.githubusercontent.com/64398828/178494331-cd16c9e1-6ea1-4430-b8a3-3808af012916.mp4

BtoA version: Dev Brunch f034f2b Blender version: 3.2.1

System Information Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 511.65

We can configure Arnold to log to a file as well as the console. This would be huge for debugging and crashes.

See a simple example here: https://docs.arnoldrenderer.com/display/A5ARP/Creating+and+Rendering+a+Scene

The issue is more about UX. Currently, there is no easy way knowing why Arnold won't run if a texture is missing. The renderer just won't run. This definitely can cause frustration and false bug reports.

Currently the only way, as far as I know, to know why render won't run because of missing textures is to use console to look for the error:

I suggest we use Blender's usual way of handling messages and notify the user with error message in the status bar: “Missing textures. Arnold render cancelled.”

Blender 2.92 BtoA RC3 Branch d4a1ca0 Arnold SDK 6.1.0 Windows 10 2004

When previewing lights with Visibility Camera enabled the Roundness and Soft Edge isn't visible when viewed directly. It's only visible in reflections with correct settings. I don't believe it's an expected behavior.

The lights in the scene are instances of the same light. Light 1 is the reflection of the light. Light 2 is the light that is faced to the camera. The light 2 should be the same as light 1.

Have a look at the attached scene file. Arnold_Test_Scene_Lights_Check.zip

Blender 2.92 BtoA RC3 Branch 2a1b41d Arnold SDK 6.1.0 Windows 10 2004

If you set Focus Distance to 0 (1) while Aperture Size is anything than 0 (2) render won't start.

Blender 2.92 BtoA Dev Branch e5dd725 Arnold SDK 6.1.0 Windows 10 2004

I've been experiencing a bug with materials assignment that produces transparent renders. It has been happening for a while now but I couldn't spot why it's happening. Seems a bit random to me but I'm sure it's not.

Here is a scene created from scratch. Once the scene is ready I assign and setup some basic materials.

With the first render we see the bug. The background (2) and the pedestal (1) are rendered as transparent objects or aren't rendered at all I'm not sure what is happening here.

Only changing the names of objects that generates issues to anything else helps to solve the issue.

Now scene renders as expected.

I attached the scene with the issue described above. To see how issue I'm experiencing with transparent objects you need to remove .BUG (including dot) in the names of two objects I mentioned above: Arnold_Test_Scene.zip

hi hi! windows user here and I was trying to get this addon to load on blender 3.0. after unzipping the SDK files into a specific folder and installing the addon, i pointed the arnold root folder setting to the directory where i installed the SDK files but nothing happened. i got no errors but also was not getting the Arnold renderer as an option in the project render settings.

in my inexperience, i tried to point the folder to the bin folder where i started to get errors and could not for the life of me figure out how to reset the setting to point it to the root of the directory. now every time i try to disable/enable the addon i get the following:

Read prefs: C:\Users\cateresis\AppData\Roaming\Blender Foundation\Blender\3.0\config\userpref.blend
No Arnold installation found. Settings from preferences: D:\Programs\Blender
Traceback (most recent call last):
  File "C:\Users\cateresis\AppData\Roaming\Blender Foundation\Blender\3.0\scripts\addons\btoa\addon_preferences.py", line 13, in refresh_addon
    bpy.ops.script.reload()
  File "D:\Programs\Blender\3.0\scripts\modules\bpy\ops.py", line 126, in __call__
    _BPyOpsSubModOp._view_layer_update(context)
  File "D:\Programs\Blender\3.0\scripts\modules\bpy\ops.py", line 88, in _view_layer_update
    view_layer = context.view_layer
AttributeError: '_RestrictContext' object has no attribute 'view_layer'
File "C:\Users\cateresis\AppData\Roaming\Blender Foundation\Blender\3.0\scripts\addons\btoa\addon_preferences.py", line 10, in refresh_addon
No custom OCIO config found, using default Filmic...
Exception in module register(): C:\Users\cateresis\AppData\Roaming\Blender Foundation\Blender\3.0\scripts\addons\btoa\__init__.py
Traceback (most recent call last):
  File "D:\Programs\Blender\3.0\scripts\modules\addon_utils.py", line 387, in enable
    mod.register()
  File "C:\Users\cateresis\AppData\Roaming\Blender Foundation\Blender\3.0\scripts\addons\btoa\__init__.py", line 22, in register
    aienv.configure_plugins()
  File "C:\Users\cateresis\AppData\Roaming\Blender Foundation\Blender\3.0\scripts\addons\btoa\environ.py", line 63, in configure_plugins
    presets_root = bpy.utils.user_resource('SCRIPTS', "presets")
TypeError: user_resource() takes 1 positional argument but 2 were given

Blender 2.93.6 Arnold SDK 6.2.1.1 Dev Branch 0b29840 Related to #135

Blender crashing when running IPR. Using basic scene with CPU rendering.

https://user-images.githubusercontent.com/64398828/143066785-d22596f6-fa52-4d09-93b5-3bb70d4daaf9.mp4

File for testing. Arnold_IPR_Testing.zip

Blender 2.92 BtoA Dev Branch bd1cdc2 Arnold SDK 6.1.0 Windows 10 2004

Placement of the render region seems to be correct. Yet it produces artifacts on the right side of the region:

Test scene: Arnold_Test_Scene_Camera_Render_Region_GPU.zip

Similar to Float value node we need Vector node to drive vector input sockets. Especially needed for texture nodes to control Scale, Rotate and Offset parameters.

The default value at 0 with no min/max.

Controls like in this node only for all 3 the fields.

Let's add the Triplanar node. We're currently missing it.

https://user-images.githubusercontent.com/64398828/188492384-32baaa63-aa0c-4b1f-91e3-5a93470ca637.mp4

My node design might be a little bit too ambitious considering how Blender UI works.

If it's too much to request this level of interactivity let's settle down on this design then. No interactive design.

Output RGB color data.

Coordinate Space Available options: World, Object (Default), Perf

Input Per Axis This is off by default. Meaning while this is off only first Input X will account for all directions. When on each direction will project separate texture.

Flip Direction On by default.

Blend Float. Default is 0.1. Hard min 0. Hard max 1.

Input X/Y/Z RGB color data. The default is white (1.1.1). I was thinking of making defaults red (1.0.0), green (0.1.0), blue (0.0.1) for X, Y, Z inputs. The reason is it's easier for new users to grasp what this node does by default. But I'm not 100% sure on this decision since the Input Per Axis option needs to be on by default so it'll be all red in viewport. On the other hand the colors will be visible on the node... Maybe we should leave it to default white.

Cell Boolean. Off by default.

(Cell) Rotate Float. Default 0. No min/max.

This kind of UI element.

(Cell) Blend Float. Default is 0.1. Hard min 0. Hard max 1.

Scale/Rotate/Offset Vector values.

1. Change name from “Closure” to “Shader”.
2. Remove "Mode:" label to allow the drop down menu to fill the width of the node. This is the the minimum goal for the node clean up.

I also have a design change for the node to make it more user friendly. I don't know if it's too difficult to implement or not.

https://user-images.githubusercontent.com/64398828/187704185-6ef26a95-156c-4da4-b958-561be73964bc.mp4

3. Basically we want the node to change when we're switching mixing modes. Blend is the default and it doesn't have the “Add Transparency option”. It's pretty much a legacy feature. Even when switching to Add mixing mode it is not recommended to use this. Still it's there for some users. But when you're switching to Add mixing mode there should be no mix factor controls since it can't be controlled for this mode.

Let me know if this can't be implemented. But I tried to apply good UI/UX practices here to allow for maximum transparency for the user which is options are available for him with different modes chosen.

Also you pretty much all the time better use the default Blend mode 😎 which makes the node a bit more compact.

Output Matrix. This is a new type of socket. I don't believe we have anything similar in Blender.

Inputs All inputs are floats. Some have defaults at 0, some at 1. Soft min/max are 0 and 1.

Output Vector data.

Input Vector. The defaults are 0 in all vectors.

Using this type of field to manually control the value.

Mode

• Raw (Default)
• Normalized
• Canonical