public Shader GetShader(glTFMaterial material)
{
if (material != null)
{
if (material.extensions != null && material.extensions.KHR_materials_unlit != null)
{
// is unlit
switch (material.alphaMode)
{
case "BLEND": return(UnlitTransparent);
case "MASK": return(UnlitCutout);
default: return(Unlit); // OPAQUE
}
}
}
if (m_context != null && m_context.MaterialHasVertexColor(material))
{
return(VColor);
}
return(Default);
}
public Shader GetShader(glTFMaterial material)
{
if (material == null)
{
return(Default);
}
if (material.extensions != null && material.extensions.KHR_materials_unlit != null)
{
var isWhite = material.pbrMetallicRoughness != null && IsWhite(material.pbrMetallicRoughness.baseColorFactor);
var hasTexture = material.pbrMetallicRoughness != null && material.pbrMetallicRoughness.baseColorTexture != null;
// is unlit
switch (material.alphaMode)
{
case "BLEND":
{
if (hasTexture)
{
if (isWhite)
{
return(UnlitTransparent);
}
else
{
Debug.LogWarningFormat("{0}: shader has no color property", UnlitTexture.name);
return(UnlitTransparent);
}
}
else
{
Debug.LogWarningFormat("{0}: shader is opaque", UnlitColor.name);
return(UnlitColor);
}
}
case "MASK":
{
if (hasTexture)
{
if (isWhite)
{
return(UnlitCutout);
}
else
{
Debug.LogWarningFormat("{0}: shader has no color property", UnlitCutout.name);
return(UnlitCutout);
}
}
else
{
Debug.LogErrorFormat("{0}: alphaMode='MASK' but no texture", UnlitTexture.name);
return(UnlitCutout);
}
}
default:
{
if (hasTexture)
{
if (isWhite)
{
return(UnlitTexture);
}
else
{
Debug.LogWarningFormat("{0}: shader has no color property", UnlitTexture.name);
return(UnlitTexture);
}
}
else
{
return(UnlitColor);
}
}
}
}
// custom shader for vertex color
if (m_context != null && m_context.MaterialHasVertexColor(material))
{
return(VColor);
}
// standard
return(Default);
}
