protected override void OnLoad()
{
GL.ClearColor(1f, 1f, 1f, 1.0f);
VertexBufferObject = GL.GenBuffer();
GL.BindBuffer(BufferTarget.ArrayBuffer, VertexBufferObject);
GL.BufferData(BufferTarget.ArrayBuffer, vertices.Length * sizeof(float), vertices, BufferUsageHint.StaticDraw);
VertexArrayObject = GL.GenVertexArray();
GL.BindVertexArray(VertexArrayObject);
GL.BindBuffer(BufferTarget.ArrayBuffer, VertexArrayObject);
GL.BufferData(BufferTarget.ArrayBuffer, vertices.Length * sizeof(float), vertices, BufferUsageHint.StaticDraw);
ElementBufferObject = GL.GenBuffer();
GL.BindBuffer(BufferTarget.ElementArrayBuffer, ElementBufferObject);
GL.BufferData(BufferTarget.ElementArrayBuffer, indices.Length * sizeof(uint), indices, BufferUsageHint.StaticDraw);
GL.VertexAttribPointer(0, 3, VertexAttribPointerType.Float, false, 3 * sizeof(float), 0);
GL.EnableVertexAttribArray(0);
Shader = new Shader(
Path.GetFullPath(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"shaders\shader.vert.glsl")),
Path.GetFullPath(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"shaders\shader.frag.glsl")));
Shader.Use();
_timer = new Stopwatch();
_timer.Start();
base.OnLoad();
}
private static void overrideDataInAttributeList(int ID, int attrib, int coordSize, float[] data)
{
GL.BindBuffer(BufferTarget.ArrayBuffer, ID);
GL.BufferData(BufferTarget.ArrayBuffer, sizeof(float) * data.Length, data, BufferUsageHint.DynamicDraw);
GL.VertexAttribPointer(attrib, coordSize, VertexAttribPointerType.Float, false, 0, 0);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
}
public static void LoadIndexer(int shaderProgramHandle, uint [] indicesVboData)
{
int indicesVboHandle;
GL.GenBuffers(1, out indicesVboHandle);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, indicesVboHandle);
GL.BufferData(BufferTarget.ElementArrayBuffer,
new IntPtr(indicesVboData.Length * sizeof(uint)),
indicesVboData, BufferUsageHint.StaticDraw);
}
protected override void OnUnload()
{
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
GL.BindVertexArray(0);
GL.UseProgram(0);
// Delete all the resources.
GL.DeleteBuffer(VertexBufferObject);
GL.DeleteVertexArray(VertexArrayObject);
GL.DeleteProgram(Shader.Handle);
base.OnUnload();
}
private static int storeDataInAttributeList(int attrib, int coordSize, float[] data)
{
int vboID = GL.GenBuffer();
VBOs.Add(vboID);
GL.BindBuffer(BufferTarget.ArrayBuffer, vboID);
GL.BufferData(BufferTarget.ArrayBuffer, sizeof(float) * data.Length, data, BufferUsageHint.DynamicDraw);
GL.VertexAttribPointer(attrib, coordSize, VertexAttribPointerType.Float, false, 0, 0);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
return(vboID);
}
public static void LoadVertexPositions(int shaderProgramHandle, Vector3[] positionVboData)
{
int positionVboHandle;
GL.GenBuffers(1, out positionVboHandle);
GL.BindBuffer(BufferTarget.ArrayBuffer, positionVboHandle);
GL.BufferData <Vector3>(BufferTarget.ArrayBuffer,
new IntPtr(positionVboData.Length * Vector3.SizeInBytes),
positionVboData, BufferUsageHint.StaticDraw);
GL.EnableVertexAttribArray(0);
GL.BindAttribLocation(shaderProgramHandle, 0, "inPosition");
GL.VertexAttribPointer(0, 3, VertexAttribPointerType.Float, false, Vector3.SizeInBytes, 0);
}
public void BindBuffer(GLBufferTarget target, GLBufferHandle buffer)
{
GL.BindBuffer((BufferTarget)target, (int)buffer);
}