//-----------------------------------------------------------------------------------------
private bool _InitBuffers()
{
GL.GenBuffers(Buffers.Count(), Buffers.Names);
GL.BindBuffer(BufferTarget.ArrayBuffer, Buffers.Name(Buffers.Type.VERTEX));
GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(sizeof(float) * 16),
ref _vectorData, BufferUsageHint.StaticDraw);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
GL.BindBuffer(BufferTarget.AtomicCounterBuffer, Buffers.Name(Buffers.Type.ATOMIC_COUNTER));
GL.BufferData(BufferTarget.AtomicCounterBuffer, (IntPtr)sizeof(uint),
IntPtr.Zero, BufferUsageHint.DynamicCopy);
GL.BindBuffer(BufferTarget.AtomicCounterBuffer, 0);
return(true);
}
//-----------------------------------------------------------------------------------------
private bool _InitBuffers()
{
float[] vertexData = new float[]
{
// back
-0.25f, 0.25f, -0.25f, -0.25f, -0.25f, -0.25f, 0.25f, -0.25f, -0.25f,
0.25f, -0.25f, -0.25f, 0.25f, 0.25f, -0.25f, -0.25f, 0.25f, -0.25f,
// right
0.25f, -0.25f, -0.25f, 0.25f, -0.25f, 0.25f, 0.25f, 0.25f, -0.25f,
0.25f, -0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f, -0.25f,
// front
0.25f, -0.25f, 0.25f, -0.25f, -0.25f, 0.25f, 0.25f, 0.25f, 0.25f,
-0.25f, -0.25f, 0.25f, -0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f,
// left
-0.25f, -0.25f, 0.25f, -0.25f, -0.25f, -0.25f, -0.25f, 0.25f, 0.25f,
-0.25f, -0.25f, -0.25f, -0.25f, 0.25f, -0.25f, -0.25f, 0.25f, 0.25f,
// bottom
-0.25f, -0.25f, 0.25f, 0.25f, -0.25f, 0.25f, 0.25f, -0.25f, -0.25f,
0.25f, -0.25f, -0.25f, -0.25f, -0.25f, -0.25f, -0.25f, -0.25f, 0.25f,
// top
-0.25f, 0.25f, -0.25f, 0.25f, 0.25f, -0.25f, 0.25f, 0.25f, 0.25f,
0.25f, 0.25f, 0.25f, -0.25f, 0.25f, 0.25f, -0.25f, 0.25f, -0.25f,
};
// Generate our vertext and uniform buffers
GL.GenBuffers(Buffers.Count(), Buffers.Names);
// Bind our vertext array and fill it with our vertex data
GL.BindBuffer(BufferTarget.ArrayBuffer, Buffers.Name(Buffers.Type.VERTEX_ARRAY));
GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(vertexData.Length * sizeof(float)),
vertexData, BufferUsageHint.StaticDraw);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
// Bind our uniform buffer and intitalize it (zero-fill)
GL.BindBuffer(BufferTarget.UniformBuffer, Buffers.Name(Buffers.Type.UNIFORM));
GL.BufferData(BufferTarget.UniformBuffer, (IntPtr)(1024 * sizeof(float)),
IntPtr.Zero, BufferUsageHint.DynamicDraw);
GL.BindBuffer(BufferTarget.UniformBuffer, 0);
return(true);
}
//-----------------------------------------------------------------------------------------
private bool InitBuffers()
{
int maxVertexAtomicCounterBuffers;
int maxControlAtomicCounterBuffers;
int maxEvaluationAtomicCounterBuffers;
int maxGeometryAtomicCounterBuffers;
int maxFragmentAtomicCounterBuffers;
int maxCombinedAtomicCounterBuffers;
GL.GetInteger((GetPName)All.MaxVertexAtomicCounterBuffers, out maxVertexAtomicCounterBuffers);
GL.GetInteger((GetPName)All.MaxTessControlAtomicCounterBuffers, out maxControlAtomicCounterBuffers);
GL.GetInteger((GetPName)All.MaxTessEvaluationAtomicCounterBuffers, out maxEvaluationAtomicCounterBuffers);
GL.GetInteger((GetPName)All.MaxGeometryAtomicCounterBuffers, out maxGeometryAtomicCounterBuffers);
GL.GetInteger((GetPName)All.MaxFragmentAtomicCounterBuffers, out maxFragmentAtomicCounterBuffers);
GL.GetInteger((GetPName)All.MaxCombinedAtomicCounterBuffers, out maxCombinedAtomicCounterBuffers);
GL.GenBuffers(Buffers.Count(), Buffers.Names);
GL.BindBuffer(BufferTarget.UniformBuffer, Buffers.Name(Buffers.Type.TRANSFORM));
GL.BufferData(BufferTarget.UniformBuffer, (IntPtr)(sizeof(float) * 16),
IntPtr.Zero, BufferUsageHint.DynamicDraw);
GL.BindBuffer(BufferTarget.UniformBuffer, 0);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, Buffers.Name(Buffers.Type.ELEMENT));
GL.BufferData(BufferTarget.ElementArrayBuffer, (IntPtr)(sizeof(ushort) * _ElementData.Length),
_ElementData, BufferUsageHint.StaticDraw);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, 0);
GL.BindBuffer(BufferTarget.ArrayBuffer, Buffers.Name(Buffers.Type.VERTEX));
GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(sizeof(float) * 4 * _VectorData.Length),
_VectorData, BufferUsageHint.StaticDraw);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
GL.BindBuffer(BufferTarget.AtomicCounterBuffer, Buffers.Name(Buffers.Type.ATOMIC_COUNTER));
GL.BufferData(BufferTarget.AtomicCounterBuffer, (IntPtr)sizeof(uint),
IntPtr.Zero, BufferUsageHint.DynamicCopy);
GL.BindBuffer(BufferTarget.AtomicCounterBuffer, 0);
return(true);
}
//-----------------------------------------------------------------------------------------
protected override void OnUnload(EventArgs e)
{
GL.DeleteProgram(_shaderProgramName);
GL.DeleteBuffers(Buffers.Count(), Buffers.Names);
GL.DeleteVertexArrays(1, ref _vertexArrayName);
}
public int BuffersCount()
{
return(Buffers.Count());
}
