protected override Effect CreateEffect(MaterialContent srcMaterial, bool isSkinned)
{
var pbrMaterial = new MaterialContentConverter(srcMaterial, GetTexture);
var isUnlit = srcMaterial.PreferredShading == "Unlit";
var effect = isUnlit ? _CreateUnlitEffect(pbrMaterial) : _CreatePBREffect(pbrMaterial);
if (srcMaterial.Mode == MaterialBlendMode.Blend)
{
effect.AlphaBlend = true;
}
if (srcMaterial.Mode == MaterialBlendMode.Mask)
{
effect.AlphaCutoff = srcMaterial.AlphaCutoff;
}
if (effect is PBREffect pbrEffect)
{
pbrEffect.NormalMode = srcMaterial.DoubleSided ? GeometryNormalMode.DoubleSided : GeometryNormalMode.Reverse;
}
return(effect);
}
private AnimatedEffect _CreateUnlitEffect(MaterialContentConverter srcMaterial)
{
var ueffect = new UnlitEffect(this.Device);
srcMaterial.CopyToEffect(ueffect.BaseColorMap, "BaseColor", XNAV4.One);
srcMaterial.CopyToEffect(ueffect.EmissiveMap, "Emissive", XNAV3.Zero);
srcMaterial.CopyToEffect(ueffect.OcclusionMap, "Occlusion", 0);
if (ueffect.OcclusionMap.Texture == null)
{
ueffect.OcclusionMap.Scale = 0;
}
return(ueffect);
}
private AnimatedEffect _CreatePBREffect(MaterialContentConverter srcMaterial)
{
if (srcMaterial.PreferredShading == "Unlit")
{
throw new ArgumentException(nameof(srcMaterial));
}
PBREffect effect;
if (srcMaterial.PreferredShading == "SpecularGlossiness")
{
var xeffect = new PBRSpecularGlossinessEffect(this.Device);
effect = xeffect;
srcMaterial.CopyToEffect(xeffect.DiffuseMap, "Diffuse", XNAV4.One);
srcMaterial.CopyToEffect(xeffect.SpecularGlossinessMap, "SpecularGlossiness", XNAV4.Zero);
}
else
{
var xeffect = new PBRMetallicRoughnessEffect(this.Device);
effect = xeffect;
srcMaterial.CopyToEffect(xeffect.BaseColorMap, "BaseColor", XNAV4.One);
srcMaterial.CopyToEffect(xeffect.MetalRoughnessMap, "MetallicRoughness", XNAV2.One);
}
srcMaterial.CopyToEffect(effect.NormalMap, "Normal", 1);
srcMaterial.CopyToEffect(effect.EmissiveMap, "Emissive", XNAV3.Zero);
srcMaterial.CopyToEffect(effect.OcclusionMap, "Occlusion", 0);
if (effect.OcclusionMap.Texture == null)
{
effect.OcclusionMap.Scale = 0;
}
return(effect);
}
protected override Effect CreateEffect(MaterialContent srcMaterial, bool mustSupportSkinning)
{
var classicMaterial = new MaterialContentConverter(srcMaterial, GetTexture);
return(classicMaterial.CreateEffect(Device, mustSupportSkinning));
}