/// <summary>
/// Initializes a new instance of the <see cref="WorldViewProjection"/> class.
/// </summary>
/// <param name="graphics">The graphics interface to use.</param>
public Light(GorgonGraphics graphics)
{
_lightData[0].Attenuation = 6.0f;
_lightData[0].LightColor = GorgonColor.White;
_lightData[0].LightPosition = Vector3.Zero;
_lightData[0].SpecularColor = GorgonColor.White;
_lightData[0].SpecularPower = 512.0f;
_buffer = graphics.Buffers.CreateConstantBuffer("LightBuffer",
new GorgonConstantBufferSettings
{
SizeInBytes = LightData.Size * _lightData.Length,
Usage = BufferUsage.Default
});
_lightStore = new GorgonDataStream(_buffer.SizeInBytes);
unsafe
{
DirectAccess.ZeroMemory(_lightStore.UnsafePointer, _buffer.SizeInBytes);
var data = (LightData *)_lightStore.UnsafePointer;
* data = _lightData[0];
}
_buffer.Update(_lightStore);
graphics.Shaders.PixelShader.ConstantBuffers[1] = _buffer;
}
/// <summary>
/// Function to zero out the memory pointed to by this pointer.
/// </summary>
/// <param name="destination">Destination pointer to zero out.</param>
/// <param name="size">Amount of memory to zero out.</param>
/// <remarks>Since a pointer doesn't have a size associated with it, care must be taken to not overstep the bounds of the data pointed at by the pointer.</remarks>
public static void ZeroMemory(this IntPtr destination, int size)
{
DirectAccess.ZeroMemory(destination, size);
}
