OTOY Forums

Hi guys

is it possible that image sequences as a background image (environment images) are not supported?
I have turned on "Keep Environment" but the image sequence (png format) is not showing up in the octane viewport. (single image works)
Octane Environment is set to "Visible Environement"

Also looks like the camera projection is not working either. Projecting the backround image through the defined render camera.


Modo 14.1v1
Modo OctaneRender Studio plugin 2020.1.4

Thanks

Andras
http://www.checkpointvfx.com

you can use a octane graph node to load the image sequence in octane and plug it into the environment color. It's a little inconvenient, but works

https://www.youtube.com/watch?v=CcBW2ybf-0w

is it possible that image sequences as a background image (environment images) are not supported?

Correct - Images are supported, but not Image Sequences. I will add this to the FR list.

you can use a octane graph node to load the image sequence in octane and plug it into the environment color. It's a little inconvenient, but works

Try dragging the Environment RGB Color property onto the Schematic, then start rendering and connect a NodeGraph node to the RGB Color channel modifier channel. You can then edit the NodeGraph and add a Texture->RGB Image node as the input to the Texture Out. You can then setup the image animation sequence in the RGB Image node. I tested this workflow, and it seems to work nicely. Be aware when you click the "animation" button on the RGB Image node, the window appears UNDER the nodegraph so you need to move the nodegraph window to access it. I have reported this bug to OTOY.

Also looks like the camera projection is not working either. Projecting the backround image through the defined render camera.

Do you have a simple scene which demonstrates this problem please?

Thanks

Paul

Hi Paul

sorry that it longer to reply.

Basically having an Environment with an Image that is projected through a camera (render camera) is important for matching the shadows, shaders etc.....

I have attached a scene that is using an Physical Sun, plane and sphere. I have 2 Modo environment textures.

The first Environment is using a spherical projection and is contributing to the lighting.
The second Environment is using the camera to project the image (this is only for the purpose for matching shadows, shaders..etc..) and not contributing to reflections or lighting.

Octane Modo is not able to use the camera for the projection. Here is a screenshot and the example scene

Modo 14.1.v1 and Modo Plugin Enterprise 2020.1.4.162



Thanks

Andras
Http://www.checkpointvfx.com

Carnera wrote:Hi Paul

sorry that it longer to reply.

Basically having an Environment with an Image that is projected through a camera (render camera) is important for matching the shadows, shaders etc.....

I have attached a scene that is using an Physical Sun, plane and sphere. I have 2 Modo environment textures.

The first Environment is using a spherical projection and is contributing to the lighting.
The second Environment is using the camera to project the image (this is only for the purpose for matching shadows, shaders..etc..) and not contributing to reflections or lighting.

Octane Modo is not able to use the camera for the projection. Here is a screenshot and the example scene

Modo 14.1.v1 and Modo Plugin Enterprise 2020.1.4.162



Thanks

Andras
Http://www.checkpointvfx.com

Do you have a simple scene which demonstrates this problem please?

Thanks

Paul

Hi Paul

I had attached the zip file with the scene in my prior posting.

I have attached it again.

Thanks

Andras
http://www.checkpointvfx.com

Hi

There is probably a way to implement this by feeding the camera rotation matrix into the Environment Image transform using the schematic (and I think I have seen a user post the layout for this), however the intended usage of the Front Projection "Projection Type" is for projecting an Image onto geometry. So in your situation:

1) Add a large plane as the background in your scene
2) Add a Shader Tree mask for your large plane mesh, and load your background image into the mask as the Diffuse Color
3) For the image Texture Location for the image in 2), set the Projection Type to "Front Projection" and the Projection Camera to "Camera"

Now when you render, whenever the camera is moved, the plugin will re-calculate the image transformation on the plane relative to the camera.

I hope that helps.

Thanks

Paul