OTOY Forums

I'm using free tier octane and I was asked on discord to provide testscene of a problem with Dirt tex not working when using RTX.
Here's a download link for a zip file that contains .orbx and .blend file of a basic scene that shows the problem:
https://wetransfer.com/downloads/a95d45 ... 733/b73f18

Dirt tex is working with rtx only if the two contacting objects have the same material, otherwise in first few frames the dirt effect disappears (without rtx it works just fine)

PS: I hope it's no problem that I post it here but I'm using free version so I don't have access to bugs part of the forums I think.

Hi,
RTX acceleration, it is not constant, and it depends completely from the scene complexity, and in particularly, from geometry, and materials used.

Dirt, Rounded Edges and texture displacement are not well supported by RTX acceleration, so, for best performance: use regular triangles, Vertex instead of texture displacement, with simple shading, no dirt or rounded edges, no motion blur, and a lot of instancing.

ciao Beppe

bepeg4d wrote:Hi,
RTX acceleration, it is not constant, and it depends completely from the scene complexity, and in particularly, from geometry, and materials used.

Dirt, Rounded Edges and texture displacement are not well supported by RTX acceleration, so, for best performance: use regular triangles, Vertex instead of texture displacement, with simple shading, no dirt or rounded edges, no motion blur, and a lot of instancing.

ciao Beppe

Hi, thanks for the response.

Is this something to be solved in the future, or will those features be always exclusive to cuda only?