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Questions tagged [optix]

Optix is a raytracing engine from NVIDIA, using GPUs (and CUDA).

Optix is a raytracing engine from NVIDIA, which uses CUDA-enabled GPUs to accelerate raytracing calculations and functions.

http://www.nvidia.com/object/optix.html

developer information:

https://developer.nvidia.com/optix

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Proper creation of Optix 7.1 TLAS Instance Acceleration Structure

I am trying to figure out how to build a TLAS properly. Using the samples that came with OptiX 7.1 and Ingo Wald's Optix 7 samples, started with a triangle (just the BLAS that holds the geometry) and it works fine (moved the triangle sample of the…
Vectorizer
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Is there a way to traverse an OptiX 7 acceleration structure to find the geometry closest to a given point?

I know this isn't the primary goal of OptiX but it is relevant when ray marching (sphere marching) signed distance fields so I figured I'd try. I created my own BVH for this originally but I was hoping to benefit from all the recent ray tracing work…
Logan Barnes
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Runtime exception in optix 6.0.0 sample code

After downloading optix6.0.0 sdk and compiling the sample projects included, I encountered runtime exception when running any of the sample projects(e.g. optixHello, optixWhitted), with error message: OptiX Error: 'NVRTC Compilation failed. …
IcyChlorine
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variable for standard output dir in CMake for VS 19

I am an absolute noob when it comes to CMake and have been stuck on this problem for the last three days. The OptiX application I am working on reads in a .ptx file compiled from a .cu file. I am struggling to get the file to be compiled into the…
brgalo
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Area light parallel to the camera view

I'm trying to render an image, and I know the coordinates of the camera, and the lookat object. I want to create an area light (plane) behind the camera, but parallel to the camera view. I guess I should use the right and up vectors of the camera.…
N.Z
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OptiX was unable to open the disk cache with sufficient privileges

My program using OptiX crashes with the following error: OptiX API error 1550: OptiX was unable to open the disk cache with sufficient privileges Where is this disk cache located, so that I can fix permissions there?
merlinND
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How to rtPrint with Optix Context Wrapper

This question is meant to help beginners of NVIDIA OptiX (much like myself) What's Happening When working with the OptiX compiled examples (delivered with the installation of OptiX), I am trying to print to the console from one of the computer…
Andrew
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Why camera view in optix is different from in OpenGL?

I'm working on taking a picture in 3D model by Nvidia Optix sample. I modified Optix SDK progressivePhotonMap to reach my goal. I have same camera position,same camera direction and same field of view(FOV) in my progressovePhotonMap code and OpenGL…
Erin Tung
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Error occurs when compiling OptiX SDK 3.9 with CMake

I'm using Win10-x64. I install Visual Studio 2010, CUDA 7.5, OptiX SDK 3.9.0 and CMake 3.5 in order. Then I follow the INSTALL-WIN.txt in OptiX/SDK/ and try to compile the samples. I press configure, then: CMake Error at CMake/FindOptiX.cmake:75…
Zehui Lin
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Display OptiX sample6 in QGLWidget

I want to display sample6 of the OptixSDK in a QGLWidget. I've read the topic in the Nvidia OptiX Forum but I do not get ahead, because unfortunalety I have no idea how I shall override the paintGL() method. At first I simply tried to read the…
Daniel R.
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Transparency in Progressive Photon Mapping in cuda

I am working on a project, which is based on optix. I need to use progressive photon mapping, hence I am trying to use the Progressive Photon Mapping from the samples, but the transparency material is not implemented. I've googled a lot and also…
csuo
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How can I setup Visual Studio 2017 to properly recognize the Cuda code in the Optix project

I try to get into the Optix projects and I have a problem with recognizing the Cuda code in the Visual Studio 2017. I can build and execute the code (even the code in the .cu files), but variables and functions in .cu files, are marked as not…
waffle
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freeglut_main.c not found in OPTIX 3.8

I have been working in Optix for my ray tracing project, i went through its classes and function , I know that all the display function and call backs are handled in glutmainloop() and it will never end, my question is I cannot find any function or…
faizan Siddiqui
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