/// <summary>
/// Sets the directx render states and project matrices.
/// </summary>
public static void SetRenderState()
{
_device.SetRenderState(RenderState.CullMode, Cull.None);
_device.SetRenderState(RenderState.Lighting, false);
_device.SetRenderState(RenderState.ZEnable, false);
_device.SetRenderState(RenderState.ZWriteEnable, false);
_device.SetRenderState(RenderState.FillMode, FillMode.Solid);
_device.SetRenderState(RenderState.AlphaBlendEnable, true);
_device.SetRenderState(RenderState.SourceBlend, Blend.One);
_device.SetRenderState(RenderState.DestinationBlend, Blend.InverseSourceAlpha);
if (_dxCapabilities.SupportsAlphaBlend)
{
_device.SetRenderState(RenderState.AlphaTestEnable, true);
_device.SetRenderState(RenderState.AlphaRef, 0x05);
_device.SetRenderState(RenderState.AlphaFunc, Compare.GreaterEqual);
}
for (int sampler = 0; sampler < 3; sampler++)
{
_device.SetSamplerState(sampler, SamplerState.MinFilter, TextureFilter.Linear);
_device.SetSamplerState(sampler, SamplerState.MagFilter, TextureFilter.Linear);
_device.SetSamplerState(sampler, SamplerState.MipFilter, TextureFilter.None);
}
// Projection onto screen space
SetCameraProjection(Width, Height);
}
/// <summary>
/// Sets the directx render states and project matrices.
/// </summary>
public static void SetRenderState()
{
_device.SetRenderState(RenderState.CullMode, Cull.None);
_device.SetRenderState(RenderState.Lighting, false);
_device.SetRenderState(RenderState.ZEnable, false);
_device.SetRenderState(RenderState.ZWriteEnable, false);
_device.SetRenderState(RenderState.FillMode, FillMode.Solid);
EnableDefaultAlphaBlending();
if (_dxCapabilities.SupportsAlphaBlend)
{
EnableAlphaTest();
}
for (int sampler = 0; sampler < 3; sampler++)
{
_device.SetSamplerState(sampler, SamplerState.MinFilter, TextureFilter.Linear);
_device.SetSamplerState(sampler, SamplerState.MagFilter, TextureFilter.Linear);
_device.SetSamplerState(sampler, SamplerState.MipFilter, TextureFilter.None);
}
// Projection onto screen space
SetCameraProjection(Width, Height);
}
private void InitializePointTexture()
{
int width = 64;
int height = width;
g_pTexture = new Texture(device, width, height, 0, Usage.AutoGenerateMipMap | Usage.Dynamic, Format.A8R8G8B8, Pool.Default);
DataRectangle rect = g_pTexture.LockRectangle(0, LockFlags.None);
rect.Data.Position = 0;
for (int y = -height / 2; y < height / 2; ++y)
{
float yf = y + 0.5f;
int counter = 0;
for (int x = -width / 2; x < width / 2; ++x)
{
float xf = x + 0.5f;
float radius = (float)width / 32;
float dist = (float)Math.Sqrt(xf * xf + yf * yf) / radius;
float n = 0.1f;
float value;
if (dist < 1)
{
value = 1 - 0.5f * (float)Math.Pow(dist, n);
}
else if (dist < 2)
{
value = 0.5f * (float)Math.Pow(2 - dist, n);
}
else
{
value = 0;
}
value *= 75;
rect.Data.Write <byte>((byte)value);
rect.Data.Write <byte>((byte)value);
rect.Data.Write <byte>((byte)value);
rect.Data.Write <byte>((byte)value);
counter += 4;
}
rect.Data.Position += rect.Pitch - counter;
}
g_pTexture.UnlockRectangle(0);
device.SetSamplerState(0, SamplerState.MinFilter, TextureFilter.Linear);
device.SetSamplerState(0, SamplerState.MagFilter, TextureFilter.Linear);
}
