public SSShadowMap(SSLight light, TextureUnit texUnit)
{
validateVersion();
if (s_numberOfShadowMaps >= c_maxNumberOfShadowMaps)
{
throw new Exception("Unsupported number of shadow maps: "
+ (c_maxNumberOfShadowMaps + 1));
}
++s_numberOfShadowMaps;
m_light = light;
m_frameBufferID = GL.Ext.GenFramebuffer();
m_textureID = GL.GenTexture();
// bind the texture and set it up...
m_textureUnit = texUnit;
BindShadowMapToTexture();
GL.TexParameter(TextureTarget.Texture2D,
TextureParameterName.TextureMagFilter,
(int)TextureMagFilter.Nearest);
GL.TexParameter(TextureTarget.Texture2D,
TextureParameterName.TextureMinFilter,
(int)TextureMinFilter.Nearest);
GL.TexParameter(TextureTarget.Texture2D,
TextureParameterName.TextureWrapS,
(int)TextureWrapMode.ClampToEdge);
GL.TexParameter(TextureTarget.Texture2D,
TextureParameterName.TextureWrapT,
(int)TextureWrapMode.ClampToEdge);
// GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.GenerateMipmap, (float)1.0f);
GL.TexImage2D(TextureTarget.Texture2D, 0,
PixelInternalFormat.DepthComponent16,
c_texWidth, c_texHeight, 0,
PixelFormat.DepthComponent, PixelType.Float, IntPtr.Zero);
// bind the framebuffer and set it up..
GL.Ext.BindFramebuffer(FramebufferTarget.Framebuffer, m_frameBufferID);
GL.Ext.FramebufferTexture(FramebufferTarget.Framebuffer,
FramebufferAttachment.DepthAttachment,
m_textureID, 0);
// turn off reading and writing to color data
GL.DrawBuffer(DrawBufferMode.None);
GL.ReadBuffer(ReadBufferMode.None);
//GL.Ext.FramebufferTexture(
// FramebufferTarget.Framebuffer,
// FramebufferAttachment.Depth,0,0);
assertFramebufferOK();
}
public void RemoveLight(SSLight light)
{
if (!m_lights.Contains(light))
{
throw new Exception("Light not found.");
}
m_lights.Remove(light);
if (BaseShader != null)
{
BaseShader.Activate();
BaseShader.SetupShadowMap(m_lights);
BaseShader.Deactivate();
}
}
public void AddLight(SSLight light)
{
if (m_lights.Contains(light))
{
return;
}
m_lights.Add(light);
if (BaseShader != null)
{
BaseShader.Activate();
BaseShader.SetupShadowMap(m_lights);
BaseShader.Deactivate();
}
}
