protected vec3[] FillPickedGeometrysPosition(uint[] indexes)
{
var positions = new vec3[indexes.Length];
OpenGL.BindBuffer(BufferTarget.ArrayBuffer, this.positionBufferPtr.BufferId);
for (int i = 0; i < indexes.Length; i++)
{
int offset = (int)(indexes[i] * this.positionBufferPtr.DataSize * this.positionBufferPtr.DataTypeByteLength);
//IntPtr pointer = GL.MapBuffer(BufferTarget.ArrayBuffer, MapBufferAccess.ReadOnly);
IntPtr pointer = OpenGL.MapBufferRange(BufferTarget.ArrayBuffer,
offset,
1 * this.positionBufferPtr.DataSize * this.positionBufferPtr.DataTypeByteLength,
MapBufferRangeAccess.MapReadBit);
if (pointer.ToInt32() != 0)
{
unsafe
{
var array = (vec3 *)pointer.ToPointer();
positions[i] = array[0];
}
}
else
{
ErrorCode error = (ErrorCode)OpenGL.GetError();
Debug.WriteLine(string.Format(
"Error:[{0}] MapBufferRange failed: buffer ID: [{1}]", error, this.positionBufferPtr.BufferId));
}
OpenGL.UnmapBuffer(BufferTarget.ArrayBuffer);
}
OpenGL.BindBuffer(BufferTarget.ArrayBuffer, 0);
return(positions);
}
protected vec3[] FillPickedGeometrysPosition(uint firstIndex, int indexCount)
{
int offset = (int)(firstIndex * this.positionBufferPtr.DataSize * this.positionBufferPtr.DataTypeByteLength);
OpenGL.BindBuffer(BufferTarget.ArrayBuffer, this.positionBufferPtr.BufferId);
//IntPtr pointer = GL.MapBuffer(BufferTarget.ArrayBuffer, MapBufferAccess.ReadOnly);
IntPtr pointer = OpenGL.MapBufferRange(BufferTarget.ArrayBuffer,
offset,
indexCount * this.positionBufferPtr.DataSize * this.positionBufferPtr.DataTypeByteLength,
MapBufferRangeAccess.MapReadBit);
var positions = new vec3[indexCount];
if (pointer.ToInt32() != 0)
{
unsafe
{
var array = (vec3 *)pointer.ToPointer();
for (uint i = 0; i < indexCount; i++)
{
positions[i] = array[i];
}
}
}
else
{
ErrorCode error = (ErrorCode)OpenGL.GetError();
throw new Exception(string.Format(
"Error:[{0}] MapBufferRange failed: buffer ID: [{1}]", error, this.positionBufferPtr.BufferId));
}
OpenGL.UnmapBuffer(BufferTarget.ArrayBuffer);
OpenGL.BindBuffer(BufferTarget.ArrayBuffer, 0);
return(positions);
}
protected vec3[] FillPickedGeometrysPosition(uint firstIndex, int indexCount)
{
int offset = (int)(firstIndex * this.PositionBuffer.Config.GetDataSize() * this.PositionBuffer.Config.GetDataTypeByteLength());
//IntPtr pointer = GL.MapBuffer(BufferTarget.ArrayBuffer, MapBufferAccess.ReadOnly);
IntPtr pointer = this.PositionBuffer.MapBufferRange(
offset,
indexCount * this.PositionBuffer.Config.GetDataSize() * this.PositionBuffer.Config.GetDataTypeByteLength(),
MapBufferRangeAccess.MapReadBit);
var positions = new vec3[indexCount];
if (pointer.ToInt64() != 0)
{
unsafe
{
var array = (vec3 *)pointer.ToPointer();
for (uint i = 0; i < indexCount; i++)
{
positions[i] = array[i];
}
}
}
else
{
ErrorCode error = (ErrorCode)OpenGL.GetError();
if (error != ErrorCode.NoError)
{
throw new Exception(string.Format(
"Error:[{0}] glMapBufferRange failed: buffer ID: [{1}]", error, this.PositionBuffer.BufferId.ToString()));
}
}
this.PositionBuffer.UnmapBuffer();
return(positions);
}
/// <summary>
/// Check if error exists.
/// </summary>
public static void CheckError()
{
ErrorCode error = (ErrorCode)OpenGL.GetError();
if (error != ErrorCode.NoError)
{
//var stack = new StackTrace();
//StackFrame frame = stack.GetFrame(1);
Debug.WriteLine(string.Format("OpenGL error: {0}", error));
}
}
/// <summary>
///
/// </summary>
/// <param name="e"></param>
protected override void OnPaint(PaintEventArgs e)
{
RenderContext renderContext = this.renderContext;
if (renderContext == null)
{
base.OnPaint(e);
return;
}
stopWatch.Reset();
stopWatch.Start();
// Make sure it's our instance of openSharpGL that's active.
renderContext.MakeCurrent();
if (this.designMode)
{
try
{
DesignModeRender();
}
catch (Exception)
{
}
}
else
{
// If there is a draw handler, then call it.
DoOpenGLDraw(e);
}
// Blit our offscreen bitmap.
Graphics graphics = e.Graphics;
IntPtr deviceContext = graphics.GetHdc();
renderContext.Blit(deviceContext);
graphics.ReleaseHdc(deviceContext);
stopWatch.Stop();
{
ErrorCode error = (ErrorCode)OpenGL.GetError();
if (error != ErrorCode.NoError)
{
Debug.WriteLine(string.Format("{0}: OpenGL error: {1}", this.fullname, error));
}
}
this.FPS = 1000.0 / stopWatch.Elapsed.TotalMilliseconds;
}
protected vec3[] FillPickedGeometrysPosition(uint[] indexes)
{
var positions = new vec3[indexes.Length];
this.PositionBuffer.Bind();
for (int i = 0; i < indexes.Length; i++)
{
int offset = (int)(indexes[i] * this.PositionBuffer.Config.GetDataSize() * this.PositionBuffer.Config.GetDataTypeByteLength());
//IntPtr pointer = GL.MapBuffer(BufferTarget.ArrayBuffer, MapBufferAccess.ReadOnly);
IntPtr pointer = this.PositionBuffer.MapBufferRange(
offset,
1 * this.PositionBuffer.Config.GetDataSize() * this.PositionBuffer.Config.GetDataTypeByteLength(),
MapBufferRangeAccess.MapReadBit, false);
if (pointer.ToInt64() != 0)
{
unsafe
{
var array = (vec3 *)pointer.ToPointer();
positions[i] = array[0];
}
}
else
{
ErrorCode error = (ErrorCode)OpenGL.GetError();
if (error != ErrorCode.NoError)
{
Debug.WriteLine(string.Format(
"Error:[{0}] glMapBufferRange failed: buffer ID: [{1}]", error, this.PositionBuffer.BufferId.ToString()));
}
}
this.PositionBuffer.UnmapBuffer(false);
}
this.PositionBuffer.Unbind();
return(positions);
}
public void swapColorAttachment(Framebuffer other, int index)
{
FramebufferTexture tmp = m_color[index];
m_color[index] = other.m_color[index];
other.m_color[index] = tmp;
glBindFramebuffer(OpenGL.GL_FRAMEBUFFER_EXT, framebufferId[0]);
glFramebufferTexture2D(OpenGL.GL_FRAMEBUFFER_EXT,
attachment_id[index], m_color[index].glTarget(), m_color[index].glID(), 0);
glBindFramebuffer(OpenGL.GL_FRAMEBUFFER_EXT, 0);
glBindFramebuffer(OpenGL.GL_FRAMEBUFFER_EXT, other.framebufferId[0]);
glFramebufferTexture2D(OpenGL.GL_FRAMEBUFFER_EXT,
attachment_id[index], other.m_color[index].glTarget(), other.m_color[index].glID(), 0);
glBindFramebuffer(OpenGL.GL_FRAMEBUFFER_EXT, 0);
ErrorCode error = (ErrorCode)OpenGL.GetError();
if (error != ErrorCode.NoError)
{
throw new Exception(string.Format("OpenGL Error: {0}", error));
}
}