vb30: HDRI broken

[logan683]

I have been using the nightlies. Since the 8/7 release, HDRI images don't seem to work anymore.

I loaded a previous scene, made no changes, and now there is VERY LITTLE lighting. You can start to see some semblance of reflections on glossy shaders when the illuminance map starts.

I have been using: Image File Node---> Image Texture Node Bitmap Environment Mapping Node Spherical-> Image Texture Node Mapping Output-> Environment Node (All Inputs) Output-> World Output

This has been working fine.

[bdancer]

I don't understand what is the issue - could you upload some example scene?

[ockelford]

Hi,

I ran into a similar problem. Vray Sky with sun was set up properly, and working well. When I upgraded around this time, it seemed only direct light was affecting the render.

To fix, I just deleted the entire node tree and rebuilt it, then it started working again. I have no idea why, as the rebuilt tree was identical to the one I deleted. It seems that only old node trees cause this problem and it hasn't come back since I rebuilt it.

Rob

[bdancer]

I've recently rewritten "Environment" node - may be this is the issue. Blender doesn't have an option to automatically update Python nodes so you have to recreate them. So, try recreating "Environment" node (only this one node).

[ockelford]

OK, I've just had to set up another environment, and this appears to have broken, only getting very low light level from a VraySky.

Can't seem to get it working now.

Rob

[bdancer]

Physical camera?

[ockelford]

Hi Andrei,

I've used a scene which definitely has worked before. The camera is set to physical and is correctly set up and the world node has been entirely rebuilt.

It was working fine, until I updated a material node, then after that, there was only direct lighting. Very strange.

Rob

[ockelford]

OK....

I accidentally unchecked GI. It works properly, just a silly mistake....

Sorry Andrei!

(a bit embarassing)

[bdancer]

Well actually I've found another issue with Sky so it's ok =) Will upload fix in a minute.

[andybot]

Speaking of sky - is the only way to get sky GI is with dome light? Before in vb25 - you could add sky texture to environment. Is there any way to do this still? Would be nice to have a quick way to add sky environment. Maybe add a preset node?

[ockelford]

Hi Andybot,

This is what I use for sunksy

For HDRi, I think you need to add an image node, then add an environment mapping node to the mapping input of that texture.

I'd test this to be sure, but my pc is rendering right now.

You can also rotate the sky by adding a math transform node into the uvw tranform, and you can control that by adding an object select node to have a handle in the scene to alter rotation etc.

Hope this helps!

Rob.

[andybot]

I've been using dome light for everything. I'll try out the environment --> world output nodes. I think I was missing the Env. node when I tried to add sky-light through World. Thanks for the tip about the UVW transform.