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  Blinking and VBO's  (Read 775 times)
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Offline monty_hall

Senior Newbie





« Posted 2009-05-01 22:20:17 »

When I draw my scene in immediate mode, things look fine.  If I use VBOs, it renders the scene, but certain objects will blink black randomly around 1/4 to 1 second and maybe affects 20% of the screen, ie: if I stare @ a wall, the window will blink on/off.  What typically would cause this kind of problem?

My VBO is strided:
   coord|texturecoord2d|texturecoord2d|normal|color4rgb

The second texture coord isn't used - but is loaded into the VBO
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for (Geometry g : geoms) {
    gl.glBindTexture(GL.GL_TEXTURE_2D, g.texture.glReference.id[0]);
    glBindBuffer(GL_ARRAY_BUFFER, vertexStoreID);
    glVertexPointer(3, GL_FLOAT, 44, 0);
    glTexCoordPointer(2, GL_FLOAT, 44, 12);
    glNormalPointer(GL_FLOAT, 44, 28);
    glColorPointer(4, GL_UNSIGNED_BYTE, 44, 40);
    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g.indices.glReference.id[0]);
    glDrawElements(GL_TRIANGLES, g.getNumIndices(), GL_UNSIGNED_INT, 0);

}



Any Advice Appreciated,

Monty Hall
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