public override EffectInstance EffectInstance(DisplayStyle displayStyle, bool IsShadingPass)
{
var ei = base.EffectInstance(displayStyle, IsShadingPass);
bool hlr = displayStyle == DisplayStyle.HLR;
bool flatColors = displayStyle == DisplayStyle.FlatColors || displayStyle <= DisplayStyle.HLR;
bool useMaterials = displayStyle > DisplayStyle.HLR && displayStyle != DisplayStyle.FlatColors;
bool useTextures = displayStyle > DisplayStyle.Rendering && displayStyle != DisplayStyle.FlatColors;
var ambient = Color.Black;
var color = Color.Black;
var diffuse = Color.Black;
var emissive = Color.Black;
var glossiness = 1.0;
var specular = Color.Black;
var transparency = 0.0;
if (IsShadingPass)
{
if (DrawContext.IsTransparentPass())
{
transparency = displayStyle == DisplayStyle.Wireframe ? 0.8 : 0.5;
var previewColor = Color.Silver;
if (flatColors)
{
emissive = previewColor;
}
else
{
diffuse = previewColor;
ambient = Color.FromArgb(diffuse.R / 2, diffuse.G / 2, diffuse.B / 2);
if (useTextures)
{
glossiness = 0.5;
specular = Color.White;
}
}
}
else
{
var drawColor = rhinoObject.IsLocked ?
Rhino.ApplicationSettings.AppearanceSettings.LockedObjectColor :
hlr ?
Color.White :
useMaterials ?
Rhino.DocObjects.Material.DefaultMaterial.DiffuseColor :
rhinoObject.Attributes.DrawColor(ActiveDocument);
if (drawColor == Color.Black)
{
drawColor = Color.Gray;
}
if (displayStyle >= DisplayStyle.HLR)
{
if (flatColors)
{
emissive = drawColor;
}
else
{
var material = rhinoObject.GetMaterial(true);
ambient = Color.FromArgb(material.DiffuseColor.R / 2, material.DiffuseColor.G / 2, material.DiffuseColor.B / 2);
diffuse = material.DiffuseColor;
emissive = material.EmissionColor;
if (material.Shine != 0.0)
{
double s = material.Shine / Rhino.DocObjects.Material.MaxShine;
double _s = 1.0 - s;
specular = Color.FromArgb
(
material.SpecularColor.A,
(int)(material.SpecularColor.R * s + material.DiffuseColor.R * _s),
(int)(material.SpecularColor.G * s + material.DiffuseColor.G * _s),
(int)(material.SpecularColor.B * s + material.DiffuseColor.B * _s)
);
glossiness = s;
}
transparency = material.Transparency;
}
}
}
}
else
{
if (part.FaceCount == -1)
{
var previewColor = Color.Silver;
diffuse = previewColor;
ambient = Color.FromArgb(diffuse.R / 2, diffuse.G / 2, diffuse.B / 2);
if (useTextures)
{
glossiness = 0.5;
specular = Color.White;
}
}
}
ei.SetAmbientColor(ambient.ToHost());
ei.SetColor(color.ToHost());
ei.SetDiffuseColor(diffuse.ToHost());
ei.SetEmissiveColor(emissive.ToHost());
ei.SetGlossiness(glossiness * 100.0);
ei.SetSpecularColor(specular.ToHost());
ei.SetTransparency(transparency);
return(ei);
}