public static Component_Material CreateMaterial( Component materialsGroup, MaterialData data )
{
//create material
var material = materialsGroup.CreateComponent<Component_Material>( enabled: false );
material.Name = data.Name;
material.ShadingModel = data.ShadingModel;
material.TwoSided = data.TwoSided;
if( !string.IsNullOrEmpty( data.OpacityTexture ) )
material.BlendMode = Component_Material.BlendModeEnum.Masked;
//create shader graph
Component_FlowGraph graph;
{
graph = material.CreateComponent<Component_FlowGraph>();
graph.Name = material.Name + " shader graph";
graph.Specialization = ReferenceUtility.MakeReference<Component_FlowGraphSpecialization>( null,
MetadataManager.GetTypeOfNetType( typeof( Component_FlowGraphSpecialization_Shader ) ).Name + "|Instance" );
var node = graph.CreateComponent<Component_FlowGraphNode>();
node.Name = "Node " + material.Name;
node.Position = new Vector2I( 10, -7 );
node.ControlledObject = ReferenceUtility.MakeThisReference( node, material );
}
const int step = 9;
Vector2I position = new Vector2I( -20, -data.GetTextureUsedCount() * step / 2 );
var addedTextures = new Dictionary<string, Component_ShaderTextureSample>();
Component_ShaderTextureSample GetOrCreateTextureSample( string channelDisplayName, string textureName )
{
if( !addedTextures.TryGetValue( textureName, out var sample ) )
{
var node = graph.CreateComponent<Component_FlowGraphNode>();
node.Name = "Node Texture Sample " + channelDisplayName;//"BaseColor";
node.Position = position;
position.Y += step;
sample = node.CreateComponent<Component_ShaderTextureSample>();
sample.Name = ComponentUtility.GetNewObjectUniqueName( sample );
sample.Texture = new Reference<Component_Image>( null, textureName );// data.BaseColorTexture );
node.ControlledObject = ReferenceUtility.MakeThisReference( node, sample );
addedTextures[ textureName ] = sample;
}
return sample;
}
//BaseColor
if( !string.IsNullOrEmpty( data.BaseColorTexture ) )
{
var sample = GetOrCreateTextureSample( "Base Color", data.BaseColorTexture );
material.BaseColor = ReferenceUtility.MakeThisReference( material, sample, "RGBA" );
}
else if( data.BaseColor.HasValue )
material.BaseColor = data.BaseColor.Value;
//Metallic
if( !string.IsNullOrEmpty( data.MetallicTexture ) )
{
var sample = GetOrCreateTextureSample( "Metallic", data.MetallicTexture );
material.Metallic = ReferenceUtility.MakeThisReference( material, sample, data.MetallicTextureChannel );
}
//Roughness
if( !string.IsNullOrEmpty( data.RoughnessTexture ) )
{
var sample = GetOrCreateTextureSample( "Roughness", data.RoughnessTexture );
material.Roughness = ReferenceUtility.MakeThisReference( material, sample, data.RoughnessTextureChannel );
}
//Normal
if( !string.IsNullOrEmpty( data.NormalTexture ) )
{
var sample = GetOrCreateTextureSample( "Normal", data.NormalTexture );
material.Normal = ReferenceUtility.MakeThisReference( material, sample, "RGBA" );
}
//Displacement
if( !string.IsNullOrEmpty( data.DisplacementTexture ) )
{
var sample = GetOrCreateTextureSample( "Displacement", data.DisplacementTexture );
material.Displacement = ReferenceUtility.MakeThisReference( material, sample, data.DisplacementTextureChannel );
}
//AmbientOcclusion
if( !string.IsNullOrEmpty( data.AmbientOcclusionTexture ) )
{
var sample = GetOrCreateTextureSample( "Ambient Occlusion", data.AmbientOcclusionTexture );
material.AmbientOcclusion = ReferenceUtility.MakeThisReference( material, sample, data.AmbientOcclusionTextureChannel );
}
//Emissive
if( !string.IsNullOrEmpty( data.EmissiveTexture ) )
{
var sample = GetOrCreateTextureSample( "Emissive", data.EmissiveTexture );
material.Emissive = ReferenceUtility.MakeThisReference( material, sample, "RGBA" );
}
//Opacity
if( !string.IsNullOrEmpty( data.OpacityTexture ) )
{
var sample = GetOrCreateTextureSample( "Opacity", data.OpacityTexture );
material.Opacity = ReferenceUtility.MakeThisReference( material, sample, data.OpacityTextureChannel );
}
material.Enabled = true;
return material;
}
