protected override void OnGLRender(object sender, EventArgs args)
{
canvas2d.SmoothMode = CanvasSmoothMode.Smooth;
canvas2d.StrokeColor = PixelFarm.Drawing.Color.Blue;
canvas2d.Clear(PixelFarm.Drawing.Color.White);
canvas2d.ClearColorBuffer();
//-------------------------------
if (!isInit)
{
glbmp = LoadTexture(RootDemoPath.Path + @"\leaves.jpg");
isInit = true;
}
if (frameBuffer.FrameBufferId > 0)
{
if (frameBufferNeedUpdate)
{
//------------------------------------------------------------------------------------
//framebuffer
canvas2d.AttachFrameBuffer(frameBuffer);
//after make the frameBuffer current
//then all drawing command will apply to frameBuffer
//do draw to frame buffer here
canvas2d.Clear(PixelFarm.Drawing.Color.Red);
canvas2d.DrawImageWithConv3x3(glbmp, Mat3x3ConvGen.emboss, 0, 300);
canvas2d.DetachFrameBuffer();
//after release current, we move back to default frame buffer again***
frameBufferNeedUpdate = false;
}
canvas2d.DrawFrameBuffer(frameBuffer, 15, 300);
}
else
{
canvas2d.Clear(PixelFarm.Drawing.Color.Blue);
}
//-------------------------------
miniGLControl.SwapBuffers();
}
