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Questions and Problems about Octane
Posted: Mon Dec 28, 2015 6:12 am
by TCS
I'm using the Demo of the Standalone Octane 2.24.2 and after a second time of giving the demo a try things are slowly beginning to fall into place; except I have a few questions on general usage;
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Why isn't there quad view (top,left,front,perspective) ?
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Why can't I move an object or mesh light in the viewport, translate, scale, rotate; rather must resort to the placement node ?
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If I want to move mesh lights; I must export the entire scene that isn't possible in the Demo ?

Re: Questions and Problems about Octane
Posted: Tue Dec 29, 2015 11:07 am
by bepeg4d
hi,
- Octane is completely different from other render engine, and since it is completely real time, there is not a classic opengl viewport. Anyway, you can switch to the classic orthographic views by clicking the colored cube in the viewport buttons

- you can move any kind of mesh node via placement node, just take in mind that is better to firstly scale or rotate with one placement node, then add a second placement node for translation only.
- if I have correctly understood your question, you can re-export from your host app the updated mesh with new positions, then in the node inspector of the mesh, click the proper button for updating the geometry.
When v3 will be more mature, there is a plan to add a viewport gizmo for better and easiest placement of mesh nodes. Let's see if the devs will find a way to implement this

ciao beppe
Re: Questions and Problems about Octane
Posted: Wed Dec 30, 2015 3:20 am
by TCS
- you can move any kind of mesh node via placement node, just take in mind that is better to firstly scale or rotate with one placement node, then add a second placement node for translation only.
In the graph above, I've used two placement nodes to move the object light, which is the white sphere you see in the image. Is there a technique used to move object lights, I find myself frustrated by moving slides in the placement node to light the scene how I want.
As well I have to select the render target node to see my results, is there any way to lock this node so I can adjust the mesh light positioning, otherwise, I find myself clicking the mesh light node and seeing nothing ?
- if I have correctly understood your question, you can re-export from your host app the updated mesh with new positions, then in the node inspector of the mesh, click the proper button for updating the geometry.
Are you telling me, I have to position my mesh lights in the 3D package then load the scene into Octane, then and only then will the lights be positioned how I want; if so this makes the question in the second part of the above paragraph irreverent ? If so there is no way to auto-sync between a 3D package and Octane omitting the saving to a file procedure ?
Why are there visible faces on the mesh render ?
Re: Questions and Problems about Octane
Posted: Fri Jan 01, 2016 3:26 am
by TCS
I made
http://1drv.ms/1MJtLtt this video after, hopefully you can explain why my mesh is constantly blue with no spectacular ? As well, why I see my mesh light in the render target & how I can move my mesh light while in the render target ?
Re: Questions and Problems about Octane
Posted: Tue Jan 05, 2016 4:47 am
by abreukers
hi TCS, if you have imported the obj with both mesh light and firecan together in it, then you won't have to use a geometry group node.
can you send us that firecan obj? maybe we can send you a sample of this that you can view in the octane demo
Re: Questions and Problems about Octane
Posted: Tue Jan 05, 2016 9:56 am
by bepeg4d
Hi,
ok now is more clear, you have to use the four buttons in the interface that help to reload or not the selected node:

- Screen Shot 2016-01-05 at 10.38.04.jpg (11.02 KiB) Viewed 4251 times
They are very useful to adjust a node attribute without leaving the current rendering view

About the black artifacts on geometry, there is surely a issue with the scale of the mesh, you can make them disappear with changing the "rey epsilon" value in the kernel settings. Octane works in meters and you can change the geometry scale on the fly in the geometry preferences of the mesh node, but for solving the issue once and for all, you have to find the correct export scale from your host application or change the geometry import settings in the Octane Preferences.
ciao beppe
Re: Questions and Problems about Octane
Posted: Wed Jan 06, 2016 5:43 am
by TCS
abreukers wrote:hi TCS, if you have imported the obj with both mesh light and firecan together in it, then you won't have to use a geometry group node.
can you send us that firecan obj? maybe we can send you a sample of this that you can view in the octane demo
I can send you the FireCan Object, where do I send ?

Re: Questions and Problems about Octane
Posted: Wed Jan 06, 2016 5:47 am
by TCS
bepeg4d wrote:Hi,
ok now is more clear, you have to use the four buttons in the interface that help to reload or not the selected node:
Screen Shot 2016-01-05 at 10.38.04.jpg
They are very useful to adjust a node attribute without leaving the current rendering view

About the black artifacts on geometry, there is surely a issue with the scale of the mesh, you can make them disappear with changing the "rey epsilon" value in the kernel settings. Octane works in meters and you can change the geometry scale on the fly in the geometry preferences of the mesh node, but for solving the issue once and for all, you have to find the correct export scale from your host application or change the geometry import settings in the Octane Preferences.
ciao beppe
Why isn't my object rendering ?
Re: Questions and Problems about Octane
Posted: Wed Jan 06, 2016 9:43 pm
by abreukers
TCS wrote:abreukers wrote:hi TCS, if you have imported the obj with both mesh light and firecan together in it, then you won't have to use a geometry group node.
can you send us that firecan obj? maybe we can send you a sample of this that you can view in the octane demo
I can send you the FireCan Object, where do I send ?

A ticket has been opened for you, and you should receive an email sent to your registered email address. From there, just reply to it and attach the FireCan. I am curious to see why that firecan is misbehaving. what 3d app has it been exported from?
Re: Questions and Problems about Octane
Posted: Wed Jan 06, 2016 10:16 pm
by whersmy
try adjusting the rayepsilon to rid of the triangles like beppe said
you could adjust the aperture to 0, turn on autofocus, maybe your object in octanes scene is really small. So pan around and rotate a bit.
also it could help to turn on wireframe mode to see where the object might be