OctaneRender® 1.025 instancing preview test build Tweet

[face]

The scatter node has a "load file" option. What kind of file would that be and where can I read about its specification?

It´s only a textfile with a csv extension.
The file should look like this:
1 0 0 0 0 1 0 0 0 0 1 0
1 0 0 0 0 1 0 0 0 0 1 0
1 0 0 0 0 1 0 0 0 0 1 0
...

face

[matej]

The scatter node has a "load file" option. What kind of file would that be and where can I read about its specification?

It´s only a textfile with a csv extension.
The file should look like this:
1 0 0 0 0 1 0 0 0 0 1 0
1 0 0 0 0 1 0 0 0 0 1 0
1 0 0 0 0 1 0 0 0 0 1 0
...

face

It works now, thanks!

I'm used to not write extensions to text files on Linux, while Octane browser would not show files that don't have the right extension.

As I said previously we need the option to reload this file, like we can reload textures -> faster workflow.

[rappet]

rappet, can you post the excel file to obtain a matrix?

thanks a lot

Hi Daniel,
I tried to upload the excell, but it doesn't work.. is it not allowed to upload a excell file?
I zipped the file includign a csv file you can load in OCtane Render.
The way I went form excel to Octane
1. copying the part (with edgdes marked: E2 > P32) to notepad
2. replace , by .
3a. copy text and paste in the field in OR
3b. or save notepad file as a csv file and open it in OR

In Excel only the green fields are to fill in, the others are calculated autmatically.
In this example it is making one row of copies (tx).
Depending on size you have to play with the numbers.

I intend to make a more complex excell to see if I can make a more random scattering without a lot of pasting and copying in excell
and I want to make a setup for making a matrix for 4x4, 10x10, 100x100 ???
This is just my first try and basic to start with.

have fun,

[rappet]

I am used to how all 3d-software mathematically works:
x and y for the groundplane and the z-axis for the vertical axis.

Now in the Scatter and Placement functions the y-coordinate is for moving up/down vertically (instead of he z what I would expect)
I have to get used to the way the xyz works In Octane, because it dffers to the 'general'way of handling coordinates/axis.
Is this a mistake in OR or is there a good reason why this is so.. it looks like the z and y are (accidentily or on purpose) switched?


greetings,

[kavorka]

Max uses Z for the vertical axis, Maya uses Y, Blender uses Z.

Its not the same with every program. X is always the same (at least I havent seen a program with it different).

[matej]

Is this a mistake in OR or is there a good reason why this is so.. it looks like the z and y are (accidentily or on purpose) switched?

There is no good reason, its just the way it is. Some applications use +Z for "up", other use +Y. Both are valid implementations.

But you guys are totally insane. Calculating rotational data, cos, sin, tan, trololo... by hand! Such things are much easier to understand and do with matrix multiplication. To copy from a left-handed +Z up coordinate system to a left-handed +Y up you need to construct a rotational matrix of -90 degrees around X. If your 3D app exposes such mathematical constructs through scripting, then this is the way to go.

[Elvissuperstar007]

Kirill Voronik made ​​a script to get the coordinates

http://rusfolder.com/31845998

[rappet]

Did this scattering with over 16.000 androids and a tree scattered a few times with help of an excell matrix.
Rendered just 320 s/px with directlighting and daylight.
Just a tiny postwork tonemapping.

greetings

[rappet]

Playing around with scattering using an excel sheet and trying to optimize the sheet...
..."matrix and de-matrix"

[face]

It would be nice to support special characters in names like test_instance_cube1.mtl for mtl-files.
The obj-file loads fine, but the mtl-file isn´t load/used.
For scenes with multiple files it is usefull to seperate about the filename which file is what...

face