private void UpdateVisualMaterial(Material oldMaterial, Material newMaterial)
{
// If the material has changed and the new material is not null
if (newMaterial != oldMaterial && newMaterial != null)
{
CSGModel csgModel = (CSGModel)target;
// Update the built mesh renderers that use the old material
Transform meshGroup = csgModel.GetMeshGroupTransform();
if (meshGroup != null)
{
MeshRenderer[] meshRenderers = meshGroup.GetComponentsInChildren <MeshRenderer>();
for (int i = 0; i < meshRenderers.Length; i++)
{
if (meshRenderers[i].sharedMaterial == oldMaterial)
{
meshRenderers[i].sharedMaterial = newMaterial;
}
}
}
// Update all the polygons in the source brushes
List <Brush> brushes = csgModel.GetBrushes();
for (int i = 0; i < brushes.Count; i++)
{
if (brushes[i] != null) // Make sure the tracked brush still exists
{
Polygon[] polygons = brushes[i].GetPolygons();
for (int j = 0; j < polygons.Length; j++)
{
// If the polygon uses the old material (as an override)
if (polygons[j].Material == oldMaterial)
{
// Set the polygon to null, this removes the material override which gives consistent behaviour
polygons[j].Material = null;
}
}
}
}
}
}
