Problem with VBO on ATI

Jumpman · 2004-01-08T14:12:58

over the weekend I bought myself a ATI 9600XT Radeon.. (I had a gf4mx before that) and since then, my model loader has been crashing when setting up the VBO's (which was working fine on the gforce card). Here is the code which allocates the VBO and then feeds it the data (into a display list).. int nVertexCount = m_numTriangles * 3; // generate the vertex, texture and normal arrays generateArrays(); // Generate And Bind The Vertex Buffer m_pgp->glGenBuffersARB(1, &m_nVBOVertexArray); // Get A Valid Name m_pgp->glBindBufferARB(GL_ARRAY_BUFFER_ARB, m_nVBOVertexArray); // Bind The Buffer // Load The Data (vertices, texture cords, colours and normals) m_pgp->glBufferDataARB(GL_ARRAY_BUFFER_ARB, nVertexCount * sizeof(vaVertexArray), m_pvaVertexArray, GL_STATIC_DRAW_ARB); m_fVBOGenerated = true; // generate a display list m_vaDisplayList = glGenLists(1); if(m_vaDisplayList == 0) { return; } glNewList(m_vaDisplayList, GL_COMPILE); // Enable all client states we are using. glEnableClientState(GL_VERTEX_ARRAY); glEnableClientState(GL_TEXTURE_COORD_ARRAY); #ifndef NO_NORMALS glEnableClientState(GL_NORMAL_ARRAY); #endif // Load the data to each pointer type we need. m_pgp->glBindBufferARB(GL_ARRAY_BUFFER_ARB, m_nVBOVertexArray); glVertexPointer(3, GL_FLOAT, sizeof(vaVertexArray), BUFFER_OFFSET(0)); glTexCoordPointer(2, GL_FLOAT, sizeof(vaVertexArray), BUFFER_OFFSET(3*sizeof(float))); #ifndef NO_NORMALS glNormalPointer(GL_FLOAT, sizeof(vaVertexArray), BUFFER_OFFSET(5*sizeof(float))); #endif // Draw the entire object. glDrawArrays(GL_TRIANGLES, 0, m_numTriangles*3); // Disable all the client states we enabled. glDisableClientState(GL_VERTEX_ARRAY); #ifndef NO_NORMALS glDisableClientState(GL_NORMAL_ARRAY); #endif glDisableClientState(GL_TEXTURE_COORD_ARRAY); // End the list creation. glEndList(); // unbind any buffers m_pgp->glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0); It's crashing on the glDrawArrays command.. any ideas ?? I am using the latest catalyst drivers (3.10) available for download on the ATI site.. Jumpman - Under Construction [edited by - Jumpman on January 6, 2004 2:20:18 AM]

Graphics and GPU Programming Programming

Started by Jumpman January 06, 2004 01:16 AM

19 comments, last by Jumpman 20 years, 3 months ago

Drevay

100

January 08, 2004 02:12 PM

Try disabling OVERDRIVE in the advanced display options - that can sometimes make your system unstable (what with overclocking the card and all).

The card runs the exact same without it on, it''s not much of a performance boost so turn it off.

Make sure you''re not running it at 8x AGP when you can only run it at 4x AGP - that happened to me too.

Peace.

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Problem with VBO on ATI

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