// This method defines the way in which renderers are initialized
private void UpdateRenderers()
{
if (renderersDirty)
{
ClearRenderers();
// Find all renderers which should be controlled with this Highlighter component
List <Renderer> renderers = new List <Renderer>();
GrabRenderers(tr, renderers);
// Cache found renderers
for (int i = 0, imax = renderers.Count; i < imax; i++)
{
if (renderers[i] == null)
{
continue;
}
GameObject rg = renderers[i].gameObject;
HighlighterRenderer renderer = rg.GetComponent <HighlighterRenderer>();
if (renderer == null)
{
renderer = rg.AddComponent <HighlighterRenderer>();
}
renderer.SetState(true);
renderer.Initialize(opaqueMaterial, transparentShader);
highlightableRenderers.Add(renderer);
}
renderersDirty = false;
}
}
// Clear cached renderers
private void ClearRenderers()
{
for (int i = highlightableRenderers.Count - 1; i >= 0; i--)
{
HighlighterRenderer renderer = highlightableRenderers[i];
renderer.SetState(false);
}
highlightableRenderers.Clear();
}
//
private void FillBufferInternal(CommandBuffer buffer, Mode m, bool depthAvailable)
{
UpdateRenderers();
bool isHighlighter = once || flashing || (transitionValue > 0f);
bool isOccluder = occluder && (seeThrough || !depthAvailable);
// Update mode
mode = Mode.None;
if (isHighlighter)
{
mode = seeThrough ? Mode.HighlighterSeeThrough : Mode.Highlighter;
}
else if (isOccluder)
{
mode = seeThrough ? Mode.OccluderSeeThrough : Mode.Occluder;
}
if (mode == Mode.None || mode != m)
{
return;
}
if (isHighlighter)
{
// ZTest = (seeThrough ? Always : LEqual), StencilRef = 1
UpdateShaderParams(seeThrough, true);
}
else if (isOccluder)
{
// ZTest = LEqual, StencilRef = seeThrough ? 1 : 0
UpdateShaderParams(false, seeThrough);
}
UpdateColors();
// Fill CommandBuffer with this highlighter rendering commands
for (int i = highlightableRenderers.Count - 1; i >= 0; i--)
{
// To avoid null-reference exceptions when cached renderer has been removed but ReinitMaterials wasn't been called
HighlighterRenderer renderer = highlightableRenderers[i];
if (renderer == null)
{
highlightableRenderers.RemoveAt(i);
}
// Try to fill buffer
else if (!renderer.FillBuffer(buffer))
{
highlightableRenderers.RemoveAt(i);
renderer.SetState(false);
}
}
}
