Corrected denoiseAlpha parameter type

[1div0]

During experiment with the PBRT build failed due to parameter type mismatch.

nVIDIA OptiX-SDK-7.5.0 F36 GCC Version 12.1.1

[pbrt4bounty]

@1div0 You need at least a Optix version control to apply this patch. I'm on Optix 7.4 and this option not seems available.

#if (OPTIX_VERSION > 70400)
    params.denoiseAlpha = OPTIX_DENOISER_ALPHA_MODE_COPY;
#else
    params.denoiseAlpha = 0;
#endif

[mmp]

Thank you!

(And I will add optix 7.5 to the automated builds now as well.)