private void RenderForPicking(SceneNodeBase sceneElement, PickingEventArgs arg)
{
if (sceneElement != null)
{
var pickable = sceneElement as IPickable;
TwoFlags flags = (pickable != null) ? pickable.EnablePicking : TwoFlags.None;
bool before = ((flags & TwoFlags.BeforeChildren) == TwoFlags.BeforeChildren);
bool children = (pickable == null) || ((flags & TwoFlags.Children) == TwoFlags.Children);
if (before)
{
pickable.PickingBaseId += arg.RenderedVertexCount;
pickable.RenderForPicking(arg);
arg.RenderedVertexCount += pickable.GetVertexCount();
}
if (children)
{
foreach (var item in sceneElement.Children)
{
this.RenderForPicking(item, arg);
}
}
}
}
private void RenderUnderLight(SceneNodeBase sceneNodeBase, ShadowMappingUnderLightEventArgs arg)
{
if (sceneNodeBase != null)
{
var node = sceneNodeBase as ISupportShadowMapping;
TwoFlags flags = (node != null) ? node.EnableShadowMapping : TwoFlags.None;
bool before = (node != null) && ((flags & TwoFlags.BeforeChildren) == TwoFlags.BeforeChildren);
bool children = (node == null) || ((flags & TwoFlags.Children) == TwoFlags.Children);
if (before)
{
flags = node.EnableRenderUnderLight;
before = (flags & TwoFlags.BeforeChildren) == TwoFlags.BeforeChildren;
}
if (children)
{
flags = (node != null) ? node.EnableRenderUnderLight : TwoFlags.None;
children = (node == null) || ((flags & TwoFlags.Children) == TwoFlags.Children);
}
if (before)
{
node.RenderUnderLight(arg);
}
if (children)
{
foreach (var item in sceneNodeBase.Children)
{
RenderUnderLight(item, arg);
}
}
}
}
/// <summary>
///
/// </summary>
/// <param name="sceneNodeBase"></param>
/// <param name="arg"></param>
static void Extrude(SceneNodeBase sceneNodeBase, ShadowVolumeExtrudeEventArgs arg)
{
if (sceneNodeBase != null)
{
var node = sceneNodeBase as ISupportShadowVolume;
TwoFlags flags = (node != null) ? node.EnableShadowVolume : TwoFlags.None;
bool before = (node != null) && ((flags & TwoFlags.BeforeChildren) == TwoFlags.BeforeChildren);
bool children = (node == null) || ((flags & TwoFlags.Children) == TwoFlags.Children);
if (before)
{
flags = node.EnableExtrude;
before = (flags & TwoFlags.BeforeChildren) == TwoFlags.BeforeChildren;
}
if (children)
{
flags = (node != null) ? node.EnableExtrude : TwoFlags.None;
children = (node == null) || ((flags & TwoFlags.Children) == TwoFlags.Children);
}
if (before)
{
node.ExtrudeShadow(arg);
}
if (children)
{
foreach (var item in sceneNodeBase.Children)
{
Extrude(item, arg);
}
}
}
}
private void RenderForPicking(RendererBase sceneElement, PickEventArgs arg)
{
if (sceneElement != null)
{
mat4 parentCascadeModelMatrix = arg.ModelMatrixStack.Peek();
sceneElement.cascadeModelMatrix = sceneElement.GetModelMatrix(parentCascadeModelMatrix);
var pickable = sceneElement as IPickable;
TwoFlags flags = (pickable != null) ? pickable.EnablePicking : TwoFlags.None;
bool before = (pickable != null) && ((flags & TwoFlags.BeforeChildren) == TwoFlags.BeforeChildren);
bool children = (pickable == null) || ((flags & TwoFlags.Children) == TwoFlags.Children);
if (before)
{
pickable.PickingBaseId += arg.RenderedVertexCount;
pickable.RenderForPicking(arg);
arg.RenderedVertexCount += pickable.GetVertexCount();
}
if (children)
{
arg.ModelMatrixStack.Push(sceneElement.cascadeModelMatrix);
foreach (var item in sceneElement.Children)
{
this.RenderForPicking(item, arg);
}
arg.ModelMatrixStack.Pop();
}
}
}
private void RenderAmbientColor(SceneNodeBase sceneNodeBase, ShadowVolumeAmbientEventArgs arg)
{
if (sceneNodeBase != null)
{
var node = sceneNodeBase as ISupportShadowVolume;
TwoFlags flags = (node != null) ? node.EnableShadowVolume : TwoFlags.None;
bool before = (node != null) && ((flags & TwoFlags.BeforeChildren) == TwoFlags.BeforeChildren);
bool children = (node == null) || ((flags & TwoFlags.Children) == TwoFlags.Children);
if (before)
{
node.RenderAmbientColor(arg);
}
if (children)
{
foreach (var item in sceneNodeBase.Children)
{
RenderAmbientColor(item, arg);
}
}
}
}
