Chaos Corona Forum

General Category => Porting and API => [Archive] Chaos Corona for Maya => Topic started by: hugojackson18 on 2015-05-09, 22:39:23

Title: HDRI environment lighting
Post by: hugojackson18 on 2015-05-09, 22:39:23

Hey guys.

I'm trying to set up a really simple environment lighting with a HDR map in a sphere, but I can't managed to do it in Corona.
Whenever I put an hdr image in the image slot of the Color/Map tab in the render settings, it just renders black. I can see the alpha so it's rendering, but it's not taking any lighting information from my hdr map. And I can't seem to find a SkyDome sphere where I could actually control the exposure of my hdr map, like I would in Arnold for exemple.
Am I missing something or is this a feature not yet implemented? If it is, what's the workflow?

Thanks a lot

Title: Re: HDRI environment lighting
Post by: hugojackson18 on 2015-05-09, 22:49:35

It seems like plugging an HDR map in an area light doesn't work either. That would be a really nice feature to implement, if it's not already!

Btw incredible job on everything haggi. Thanks for everything you're doing!

Title: Re: HDRI environment lighting
Post by: hugojackson18 on 2015-05-10, 00:06:27

I think I'm just really dumb, considering hdr are not supported. I just need to convert to exr! Sorry bout that

Title: Re: HDRI environment lighting
Post by: haggi on 2015-05-10, 00:20:09

Maybe I should throw an error message if anyone tries to use a incompatible image file, or convert it automatically to exr, lets see what I can do.

Title: Re: HDRI environment lighting
Post by: hugojackson18 on 2015-05-10, 00:36:22

An error message would be great. But I've converted all my maps to exr and now it works perfectly obviously.

One thing though, because there is no physical object that i can rotate in the viewport that is connected to the HDR, I can't manage to rotate the map . Changing the parameters in the place2dTexture doesn't change anything. How could I rotate it to have my lighting rotating?

EDIT:
And any tips on how to make the intensity of the map stronger? The Exposure parameter in the file node doesn't seem to be supported (it isn't in arnold either btw, so it would be amazing if Corona supports it!)

EDIT EDIT:
Ok my mistake, the Exposure parameter IS supported and working perfectly! I wish I would stop being so dumb today and moving the parameters of the wrong file node.... Although the place2dTexture still has no effect

Thanks a lot Haggi

Title: Re: HDRI environment lighting
Post by: haggi on 2015-05-10, 12:36:00

Unfortunatly the environment color map can only use the file texture name, no other settings. I'll try it again to solve this problem but I cannot promise anything.