protected virtual void Display()
{
if (UsePBO)
{
DrawPbo();
}
else
{
BufferStream stream = OutputBuffer.Map();
PixelType type = 0;
PixelFormat format = 0;
switch (OutputBuffer.Format)
{
case Format.UByte4:
format = PixelFormat.Bgra;
type = PixelType.UnsignedByte;
break;
case Format.Float4:
format = PixelFormat.Rgba;
type = PixelType.Float;
break;
case Format.Float3:
format = PixelFormat.Rgb;
type = PixelType.Float;
break;
case Format.Float:
format = PixelFormat.Luminance;
type = PixelType.Float;
break;
default:
throw new Exception("Unsupported format for glDrawPixels");
}
Gl.DrawPixels(Width, Height, format, type, stream.DataPointer);
OutputBuffer.Unmap();
}
this.SwapBuffers();
}
private void CreateLights()
{
var light = new ParallelogramLight
{
corner = new Vector3(2.8096f, 17.1165f, 2.3659f),
v1 = new Vector3(-5.0f, 0.0f, 0.0f),
v2 = new Vector3(0.0f, 0.0f, 5.0f)
};
light.normal = Vector3.Normalize(Vector3.Cross(light.v1, light.v2));
light.emission = new Vector3(15.0f, 15.0f, 5.0f);
var desc = new BufferDesc {
Width = 1u, Format = Format.User, Type = BufferType.Input, ElemSize = (uint)Marshal.SizeOf(typeof(ParallelogramLight))
};
var lightBuffer = new OptixBuffer(OptixContext, desc);
var stream = lightBuffer.Map();
stream.Write(light);
lightBuffer.Unmap();
OptixContext["plights"].Set(lightBuffer);
}