glBindImageTexture(0, head_pointer_texture, 0, GL_FALSE, 0, GL_READ_WRITE, GL_R32UI) GlTexImage2D(GL_TEXTURE_2D, 0, GL_R32UI, current_width, current_height, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, NULL) GlTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST) GlTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST) GlBindImageTexture(0, 0, 0, GL_FALSE, 0, GL_READ_WRITE, GL_R32UI) GlBindTexture(GL_TEXTURE_2D, head_pointer_texture) Resolve_program = LoadShaders(resolve_shaders) Create the program for rendering the scene from the viewer's position Object.LoadFromVBM('unit_pipe.vbm', 0, 1, 2)

Void OITDemo::Initialize(const char * title) GlVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, NULL) GlBufferData(GL_ARRAY_BUFFER, sizeof(quad_verts), quad_verts, GL_STATIC_DRAW) GlGenBuffers(1, &head_pointer_clear_buffer) GlActiveTexture(GL_TEXTURE0+texUnitOffset) Head pointer image and PBO for clearing itĭEFINE_APP(OITDemo, 'Order Independent Transparency') Program to construct the linked list (renders the transparent objects)

Virtual void Keyboard(unsigned char key, int x, int y) Virtual void Reshape(int width, int height) Virtual void Initialize(const char * title) This is very similar to what I get in my application.Ĭan anyone point me in the right direction? /* $URL$Įxtern unsigned char * load_targa(const char * filename, GLenum &format, int &width, int &height) I’ve modified the Chapter 11-oit(order-independent transparency) example that comes with the opengl red book 8th edition to reallocate texture buffers when the window is resized and the problem occurs systematically upon resetting the atomic counter just after reallocating the linked list and head pointer buffers. Anyone knows any tool to help me diagnose that problem? GPU caps tells me that I should be able to allocate 16384*16384 textures, which I can, so I don’t think that’s a out-of-mem issue. And the Quadro 600 has 1Gigs on the graphic card and my pc has 24 gigs on a 64-bit windows 7 system. Is it possible that the NVidia driver crashes instead of raising a glError when it cannot allocate a buffer or a texture? Btw my textures sizes are RGBA32UI(128-bits) from 512 512to 20482048. I tried glslDevil but it crashes whenever I try to use it. I’m using gDEbugger but it does not know what’s going on. But I can’t tell for sure since the problem arises sporadically. My best guess is that I was calling glTexImage2D repeatedly instead of glTexSubImage2D to update the content of my texture. The webpage talks about large chunks of memory but in the OpenGL doc, glTexImage2D is supposed to raise a GLError in that case, which I don’t have. I’m sporadically getting this error and I’m wondering what could be the possible explanations : You hardware configuration does not meet minimum specifications

Opengl 4.6 checkerboard erropr