OTOY Forums

seriawp wrote:hello.
Null node in Octane Network doesnt working.

Nope, sorry, the null VOP is available to support some internal Houdini features, but currently, it can't be used in the shader networks. I'll try to add this feature for the next Octane 2018/2019 plugin build.

Thanks for reporting this limitation!
-Juanjo

how i can fast invert normal map?
if i dont know how to use COP, can i invert ONLY green channal in material shared builder?

seriawp wrote:how i can fast invert normal map?
if i dont know how to use COP, can i invert ONLY green channal in material shared builder?

Hmm, I think that Octane doesn't have a tool to only invert one component, but I'm thinking that probably you could write a very simple OSL texture with this feature.

Hope it helps,
-Juanjo

It is a pity that I don't know how to work with OSL

seriawp wrote:It is a pity that I don't know how to work with OSL

This topic could help you
viewtopic.php?f=30&t=68843

Thanks,
-Juanjo

octane 4 in houdini doesnt have color attribute? why? Its very important

seriawp wrote:octane 4 in houdini doesnt have color attribute? why? Its very important

Sorry, I'm afraid that the mesh custom attributes feature has been added in the Octane 2018.1 version. It is not available in Octane 4.

Thanks,
-Juanjo

Help me pleae with invert normal with OSL
I write this script to .osl and put to osl_texture in shader builder. in houdini dont apear any imput for texture (

#include <octane-oslintrin.h>
shader Texture(
color col1 = color(0.5, 0.5, 0.5),
output color c = 0)
{
color col2 = _evaluateDelayed(col1, u, v);

c = color(col2[0], 1.0 - col2[1], col2[2]);
}

seriawp wrote:Help me pleae with invert normal with OSL
I write this script to .osl and put to osl_texture in shader builder. in houdini dont apear any imput for texture (

Sorry, my mistake. I'm afraid that currently the final OSL VOP nodes with exposed inputs are available in the 2018.1 plugin builds only. The changes made in the plugin code to support this feature were done along the 2018.1 development cycle and they are too complex to commit them back into the 4.02 plugin branch.

As you can see in the attached image, your OSL shader works fine in Octane 2018.1 ... not sure if you have access to it to test it there.

Thanks,
-Juanjo

HI, I have houdini indie 17.5 and octane 4.02 but I when run ipr, don't see play window, but play I see in activity monitor , I using high Sierra