OTOY Forums

I dont know if anyone has done this. I am using octane 2 in blender. But i have an outdoor night scene, and I noticed by reducing the camera exposure as low as can go, then cranking up the lights in the scene to suitable lighting, raise the gamma bit to say 2.2. The scene looks the same, but the render time is cut down more than half. I was testing this because when aperture was turned up a bit for some depth of field, it still was taking too long, so I tried tweaking things to try and bring the noise down. It definitely worked with aperture still on. But then turning aperture off, wow, even better(of course). But still with both aperture and no aperture render time extremely reduced. Oh ya, I also have am rendering with path tracing, coherent ratio 0.6, GI clamp at 3. Path term power 0.6. Max diffuse depth 2, max glossy depth 3. caustic blur 1. But the most major reduction in render time I think was at the end tweaks, camera exposure vs emission powers.

I have 3 gtx 780 6gb vram.

This is the second time this has happened, but noticed it even more on this scene because I just kept pushing it to see what happened. The other scene was using octane sun and it did the same thing but i didnt push it as far. This scene i pushed it to the max(lowered the exposure right down to 0.001) and cranked up the emitter power to 200000, surface brightness unchecked.

Is this okay?

I want to try it on an interior scene, i have a feeling the same thing is going to happen.

Also, im going to post another topic regarding z depth in the render layer. I want to try and use blender defocus node for depth of field hopefully to speed up render time. But the Z node doesnt seem to be working properly. What am i missing?