public static LightingGroupInfo GetOrCreate(Effect effect)
{
if (effect == null)
{
throw new ArgumentNullException("effect");
}
LightingGroupInfo value;
if (!effect.Tags.TryGetValue(Key, out value))
{
value = new LightingGroupInfo();
effect.Tags.Add(Key, value);
}
return(value);
}
/// <summary>
/// Update the light values of the shader.
/// </summary>
/// <param name="context">The render context.</param>
/// <param name="renderMesh">The current RenderMesh (the same as <seealso cref="PreEffectUpdate"/>)</param>
public void PostEffectUpdate(RenderContext context, RenderMesh renderMesh)
{
var lightingGroupInfo = LightingGroupInfo.GetOrCreate(renderMesh.Effect);
// update the info if necessary
if (!lightingGroupInfo.IsLightingSetup)
{
lightingGroupInfo.LightingParameters = CreateLightingUpdateInfo(renderMesh);
if (lastConfiguration.ShadowConfigurations != null)
{
lightingGroupInfo.ShadowParameters = CreateEffectShadowParams(lastConfiguration);
}
lightingGroupInfo.IsLightingSetup = true;
}
if (lightingGroupInfo.LightingParameters.Count == 0)
{
return;
}
// TODO: is it always available?
var viewMatrix = context.CurrentPass.Parameters.Get(TransformationKeys.View);
if (lightingGroupInfo.ShadowParameters != null)
{
for (var i = 0; i < lightingGroupInfo.ShadowParameters.Count; ++i)
{
UpdateShadowParameters(renderMesh.Parameters, lightingGroupInfo.ShadowParameters[i], shadowMapGroups[i]);
}
}
// Apply parameters
foreach (var info in lightingGroupInfo.LightingParameters)
{
switch (info.Type)
{
case LightingUpdateType.Point:
UpdateLightingParameters(info, ref renderMesh, ref viewMatrix, pointLightsForMesh);
break;
case LightingUpdateType.Directional:
UpdateLightingParameters(info, ref renderMesh, ref viewMatrix, directionalLightsForMesh);
break;
case LightingUpdateType.Spot:
UpdateLightingParameters(info, ref renderMesh, ref viewMatrix, spotLightsForMesh);
break;
case LightingUpdateType.DirectionalShadow:
UpdateLightingParameters(info, ref renderMesh, ref viewMatrix, directionalLightsWithShadowForMeshGroups[info.Index]);
break;
case LightingUpdateType.SpotShadow:
UpdateLightingParameters(info, ref renderMesh, ref viewMatrix, spotLightsWithShadowForMeshGroups[info.Index]);
break;
//TODO: implement later when shadow map are supported
case LightingUpdateType.PointShadow:
break;
default:
throw new ArgumentOutOfRangeException();
}
}
}