I'm trying to use a VBO, but it keeps on segfaulting on me.
Here is how I set up the VBO
glGenBuffers(1, &m_testVBO);
glBindBuffer(GL_ARRAY_BUFFER, m_testVBO);
GLfloat vertexData[] = {0.0f, 1.0f,
0.0f, 0.0f,
1.0f, 1.0f,
1.0f, 0.0f};
GLfloat colorData[] = {.3f, .3f, .3f, 1.f,
.5f, .5f, .5f, 1.f,
1.f, .5f, .5f, 1.f,
1.f, 1.f, 1.f, 1.f};
glBufferData(GL_ARRAY_BUFFER, sizeof(vertexData) + sizeof(colorData), 0, GL_STATIC_DRAW);
glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(vertexData), vertexData);
glBufferSubData(GL_ARRAY_BUFFER, sizeof(vertexData), sizeof(colorData), colorData);
glColorPointer(4, GL_FLOAT, 0, (void*)(sizeof(vertexData)));
glVertexPointer(2, GL_FLOAT, 0, (void*)(0));
glBindBuffer(GL_ARRAY_BUFFER, 0);
and here is how I render it.
glBindBuffer(GL_ARRAY_BUFFER, m_testVBO);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glColorPointer(4, GL_FLOAT, 0, (GLvoid*)(8 * sizeof(GLfloat)));
glVertexPointer(2, GL_FLOAT, 0, 0);
glDrawArrays(GL_QUADS, 0, 4);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glBindBuffer(GL_ARRAY_BUFFER, 0);
At this point, I have no idea what I'm doing wrong. (I'm just trying to render a rectangle.)
[Edited by - J2902 on September 12, 2009 6:18:10 PM]
