jbikker/lighthouse2

Optix error unsupported ABI version

straaljager opened this issue · 6 comments

straaljager commented

Hi Jacco,

I followed the instructions to compile Lighthouse with VS2017, however when running the application it shows a fatal error:

running on GPU: GeForce RTX 2060 (30 SMs, 6GB VRAM)

Error at line 124 of c:\users\sam\downloads\lighthouse2-master\lighthouse2-master\lib\rendercore_optix7\rendercore.cpp:
optixInit()
OPTIX_ERROR_UNSUPPORTED_ABI_VERSION (7801)

Googling this error seems to point to an issue with Optix 7. Any help on how to resolve it is appreciated.

straaljager commented

Updating the Nvidia driver solved this error, however a new fatal error appeared in platform.cpp (I cannot provide more details unfortunately)

  • 👍1
meirbon commented

@straaljager support for OptiX 7 came with a driver update as you found out. There is a string formatting bug in platform.cpp, that's why you aren't seeing the actual error message. It is most likely because of this function in platform.cpp:

void DrawQuad()
{
	static GLuint vao = 0;
	if (!vao)
	{
                ...
		glBindVertexArray( 0 );
->	        glDisableVertexAttribArray( 0 ); // Causes GL_INVALID_OPERATION
->	        glDisableVertexAttribArray( 1 ); // Causes GL_INVALID_OPERATION
	}
	glBindVertexArray( vao );
	glDrawArrays( GL_TRIANGLES, 0, 6 );
	glBindVertexArray( 0 );
}

glDisableVertexAttribArray causes a GL_INVALID_OPERATION error as there is no vertex array object bound. It seems this used to not cause any errors with previous drivers.

jbikker commented

Hi Sam, hi Meir,
Glad to see you guys here. :)
The glDisableVertexAttribArray commands are still not giving me any issues, but I removed them in the latest revision. I'll assume that this resolved the issue.

  • Jacco.
straaljager commented

Thanks, I just tried the latest revision. While the previous error is now gone, a new one popped up unfortunately:

cudaGraphicsGLRegisterImage() failed: Operating system error!
c:\users\sam\downloads\lighthouse2-master(2)\lighthouse2-master\lib\cuda\shared_host_code\interoptexture.cpp, line 51

Perhaps I should open a new issue?

jbikker commented
  • 👍1
straaljager commented

Yes that solved it, thanks!