/// <summary>
///
/// </summary>
/// <param name="rs"></param>
/// <param name="maxTextures"></param>
internal MaterialInstance ( RenderSystem rs, ContentManager content, MaterialData parameters, IEnumerable<TextureMapBind> textureBinds, SurfaceFlags surfaceFlags )
{
if (rs==null) {
throw new ArgumentNullException("rs");
}
if (textureBinds.Count()<0 || textureBinds.Count()>MaxTextures) {
throw new ArgumentException("textureCount", "Must be less or equal to " + MaxTextures.ToString() );
}
//
// Pipeline states :
//
var factory = rs.SceneRenderer.Factory;
var gbufferRigid = SurfaceFlags.GBUFFER | SurfaceFlags.RIGID | surfaceFlags ;
var gbufferSkinned = SurfaceFlags.GBUFFER | SurfaceFlags.SKINNED | surfaceFlags ;
var shadowRigid = SurfaceFlags.SHADOW | SurfaceFlags.RIGID | surfaceFlags ;
var shadowSkinned = SurfaceFlags.SHADOW | SurfaceFlags.SKINNED | surfaceFlags ;
GBufferRigid = factory[ (int)gbufferRigid ];
GBufferSkinned = factory[ (int)gbufferSkinned ];
ShadowRigid = factory[ (int)shadowRigid ];
ShadowSkinned = factory[ (int)shadowSkinned ];
//
// Textures :
//
var textures = textureBinds
.Select( texBind => texBind.TextureMap.LoadTexture( content, texBind.FallbackPath ) );
var uvMods = new Vector4[MaxTextures];
textureBinds
.Select( tb => tb.TextureMap )
.Select( tm => new Vector4( tm.ScaleU, tm.ScaleV, tm.OffsetU, tm.OffsetV ) )
.ToArray()
.CopyTo( uvMods, 0 );
shaderResources = textures.Select( tex => tex.Srv ).ToArray();
//
// Constants :
//
constBufferParams = new ConstantBuffer( rs.Device, typeof(MaterialData) );
constBufferParams.SetData( parameters );
constBufferUVMods = new ConstantBuffer( rs.Device, typeof(Vector4), MaxTextures );
constBufferUVMods.SetData( uvMods );
}
/// <summary>
/// Creates gpu material
/// </summary>
/// <param name="rs"></param>
/// <returns></returns>
internal MaterialInstance CreateMaterialInstance ( RenderSystem rs, ContentManager content )
{
var data = new MaterialData();
GetMaterialData( ref data );
var mtrl = new MaterialInstance( rs, content, data, GetTextureBindings(), GetSurfaceFlags() );
return mtrl;
}
/// <summary>
/// Updates MaterialData.
/// </summary>
/// <param name="data"></param>
protected virtual void GetMaterialData ( ref MaterialData data )
{
data.ColorLevel = ColorLevel ;
data.SpecularLevel = SpecularLevel ;
data.EmissionLevel = EmissionLevel ;
data.RoughnessMinimum = RoughnessMinimum;
data.RoughnessMaximum = RoughnessMaximum;
data.DirtLevel = DirtLevel;
}