Need Help！Unable to compile with optix8.>ptxas C: Error EstimateDirect.ptx, line 30;: Call to '_optix_get_sbt_data_ptr_64' requires call prototype

[dhart]

Hi @790989228,

Please check the answers in these 2 threads and let us know if they don’t lead you to a solution.

Generating ptx code using OptiX 7.4 and CMake

target_compile_options(${output_var}_lib PRIVATE --generate-line-info -use_fast_math -arch=sm_60 --keep) If these are all your NVCC command line options, you’re missing the --ptx flag which is telling the compiler to only translate from *.cu to *.ptx code. You’ve most likely compiled to cubins. Simply look at your *.ptx output files in a text editor. If that is not human readable PTX assembly text, you’re doing it wrong. In my OptiX applications I’m using a custom build rule for each *.cu fi…

Add OptiX to existing Visual Studio Project

From the error messages, you’re probably missing some OptiX include directories in the build setting of your *.cu to *.ptx translation step. Hmm, or you’re actually not only translating to PTX, but try to build CUBINs and those do not know about the OptiX device code intrinsics because those are translated by OptiX from the input PTX code. Means you’re compiling the *.cu code to the wrong target. It needs to compile to the --ptx target only. How do I add OptiX Support to existing VS projects…

–
David.