private void loadModelData(BlenderFile file)
{
models = new List <BlenderModel>();
transparentModels = new List <BlenderModel>();
currentLayer = 1;
Structure curscene = file.GetStructuresOfType("FileGlobal")[0]["curscene"].Dereference()[0];
ulong next = curscene["base.first"].Value;
while (next != 0)
{
Structure objBase = file.GetStructuresByAddress(next)[0];
Structure obj = objBase["object"].Dereference()[0];
IField data = obj["data"];
int SDNAIndex = file.GetBlockByAddress((data as Field <ulong>).Value).SDNAIndex;
while (file.StructureDNA.StructureList[SDNAIndex].StructureTypeName != "Mesh")
{
ulong nextPointer = (objBase["next"] as Field <ulong>).Value;
if (nextPointer == 0)
{
return; // we've run out of objects in the list, and haven't found any meshes
}
objBase = file.GetStructuresByAddress(nextPointer)[0];
obj = objBase["object"].Dereference()[0];
data = obj["data"];
SDNAIndex = file.GetBlockByAddress((data as Field <ulong>).Value).SDNAIndex;
}
Structure mesh = data.Dereference()[0];
BlenderModel model = new BlenderModel(mesh, obj, GraphicsDevice, file);
if (model.TextureHasTransparency)
{
transparentModels.Add(model);
}
else
{
models.Add(model);
}
next = (objBase["next"] as Field <ulong>).Value;
}
}
private void drawModel(BlenderModel model, bool transparent = false)
{
effect.View = camera.View;
effect.Projection = camera.Projection;
effect.World = camera.World * Matrix.CreateScale(model.Scale) * Matrix.CreateFromQuaternion(model.Rotation) * Matrix.CreateTranslation(model.Position);
GraphicsDevice.RasterizerState = RasterizerState.CullNone;
GraphicsDevice.SamplerStates[0] = SamplerState.LinearWrap;
if (transparent)
{
GraphicsDevice.DepthStencilState = DepthStencilState.DepthRead;
GraphicsDevice.BlendState = BlendState.AlphaBlend;
}
else
{
GraphicsDevice.BlendState = BlendState.Opaque;
GraphicsDevice.DepthStencilState = DepthStencilState.Default;
}
effect.LightingEnabled = model.LightingEnabled;
effect.DirectionalLight0.Direction = -Vector3.UnitZ;
effect.DirectionalLight1.Enabled = true;
effect.DirectionalLight1.Direction = Vector3.UnitZ;
effect.TextureEnabled = true;
effect.PreferPerPixelLighting = true;
effect.VertexColorEnabled = false;
effect.Texture = model.Texture;
GraphicsDevice.SetVertexBuffer(model.VertexBuffer);
foreach (EffectPass pass in effect.CurrentTechnique.Passes)
{
pass.Apply();
GraphicsDevice.DrawUserPrimitives(PrimitiveType.TriangleList, model.Vertices, 0, model.Vertices.Length / 3);
}
effect.TextureEnabled = false;
effect.LightingEnabled = false;
effect.VertexColorEnabled = true;
GraphicsDevice.SetVertexBuffer(model.NormalBuffer);
foreach (EffectPass pass in effect.CurrentTechnique.Passes)
{
pass.Apply();
GraphicsDevice.DrawUserPrimitives(PrimitiveType.LineList, model.NormalVerts, 0, model.NormalVerts.Length / 2);
}
}