I downloaded the official Blender 2.64 yesterday, but unfortunately rendering with Cycles doesn't work. It crashes every time with:
|CUDA error: Invalid value in cuLaunchGrid(cuDisplace, xblocks, 1) |
Official 2.64 RC2 works ok though.
* Linux Mint 64 bit
* GTX 570 2.5GB
* Nvidia 295.75 drivers
* CUDA toolkit 4.0.17 (with 4.2 is the same problem)
Any suggestions what could be wrong?
Unfortunately, I got the same problem today.
- system: Win7 64Bit
- graphics card: Quadro FX4000
Thanks for help.
The solution in my case was to disable Sample as Lamp
in the World tab -> Settings panel
Thanks for your workaround MatejMo - worked for me, too. Hopefully this bug will be fixed quickly, so that "sample as lamp" can still be used in connection with cycles. (I think, it helps a lot to improve Renderquality especially with HDRI-Lighting)
This problem was solved in 2.64a, "sample as lamp" does not produce a crash anymore.
But, and this is kinda weird, if I have that option enabled, I hear a "screeching" noise (supposedly coming from my graphic card) every time the render re-starts (ie. I tweak something that causes render re-start).
And it gets even more weird: the noise is louder, the bigger the map resolution is.
Should I be worried? Is Cycles somehow violating my graphic card?
Has anyone else noticed such behavior?