Unhandled exception at 0x53492FCE (atioglxx.dll) in Particles_d.exe: 0xC0000005: Access violation reading location 0x00000020. Particles_d.exe!mainCRTStartup() Line 377 Cįirst-chance exception at 0x53492FCE (atioglxx.dll) in Particles_d.exe: 0xC0000005: Access violation reading location 0x00000020. Particles_d.exe!_tmainCRTStartup() Line 536 C Particles_d.exe!main(int argc, char * * argv) Line 140 C Particles_d.exe!SDL_main(int argc, char * * argv) Line 238 C++ Particles_d.exe!Update(float dt) Line 161 C++ Particles_d.exe!ParticleSystem::Update(float dt) Line 127 C++ This always crashes in if I read AND write to the shader buffer objects in my compute shader. GlMemoryBarrier(GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT) īuffers are allocated with the usual glGenBuffers, glBind, glBufferData flow. GlDispatchCompute(workgroups_count, workgroups_count, 2) GlBindBufferRange(GL_SHADER_STORAGE_BUFFER, 1, m_glVelocityBuffer, 0, m_ParticleCount*sizeof(ParticleVelocity)) GlBindBufferRange(GL_SHADER_STORAGE_BUFFER, 0, m_glPositionBuffer, 0, m_ParticleCount*sizeof(ParticlePos)) I have gl debug callback set and I get no errors at all. Ĭrash always happens here in glDispatchCompute ( at the first call ). It is my first attempt at learning OpenGL so I might do something really wrong, but I can't figure out what. On NVIDIA cards ( the one I tested ) I had no issues with this. On other (newer from the HD 7xxx series) cards everything works fine.

To my surprise I started experiencing a 100% crash on my home video card (6970 HD, a card that should have OpenGL 4.3 support). I was looking into compute shaders and Opengl 4.3 and I made a small project to try stuff out.

Compute shader example opengl 4.3