internal void Draw(VertexDeclaration vertexDeclaration, RenderSettings settings, IEnumerable<IDecorator> decorators)
{
_device.VertexDeclaration = vertexDeclaration;
foreach (IDecorator decorator in decorators)
decorator.OnBeginDrawMesh(this, settings);
_device.SetStreamSource(0, _vertexBuffer, 0, VertexPositionNormalTexture.SizeInBytes);
_device.Indices = _indexBuffer;
_effect.LightDirection = settings.Parameters.LightDirection;
_effect.View = settings.ViewMatrix;
_effect.Projection = settings.ProjectionMatrix;
int passes = _effect.Begin();
for (int i = 0; i < passes; i++)
{
_effect.BeginPass(i);
_device.DrawIndexedPrimitives(
PrimitiveType.TriangleList, 0, 0, _numVertices,
0, _primitiveCount);
_effect.EndPass();
}
_effect.End();
foreach (IDecorator decorator in decorators)
decorator.OnEndDrawMesh(this, settings);
}
internal void Draw(RenderSettings settings)
{
IEnumerable<IDecorator> activeDecorators = GetActiveDecorators(settings);
foreach (IDecorator decorator in activeDecorators)
decorator.OnBeginDrawModel(this, settings, activeDecorators);
DrawInternal(settings, activeDecorators);
foreach (IDecorator decorator in activeDecorators)
decorator.OnEndDrawModel(this, settings);
}
public void Render(RenderParameters parameters)
{
RenderSettings renderSettings = new RenderSettings();
renderSettings.ProjectionMatrix = _projection;
renderSettings.ViewMatrix = Matrix3D.Invert(_cameraTransform.Value) * _view;
renderSettings.Parameters = parameters;
IoC.Get<IStatusBar>().Message = "Camera Location: " + renderSettings.ViewMatrix.Translation;
_device.Clear(ClearFlags.Target | ClearFlags.ZBuffer, new ColorF(0.3f, 0.3f, 0.3f).ToColorBGRA(), 1.0f, 0);
_device.BeginScene();
_model.Draw(renderSettings);
_device.EndScene();
}
internal void DrawInternal(RenderSettings settings, IEnumerable<IDecorator> decorators)
{
_device.SetRenderState(RenderState.ZEnable, true);
_device.SetRenderState(RenderState.ZWriteEnable, true);
// Draw opaque objects first.
foreach (ModelMesh modelMesh in Meshes.Where(m => m.Opaque))
modelMesh.Draw(_vertexDeclaration, settings, decorators);
_device.SetRenderState(RenderState.ZWriteEnable, false);
// Draw transparent objects. TODO: Sort by distance from camera and draw from back to front.
_device.SetRenderState(RenderState.AlphaBlendEnable, true);
_device.SetRenderState(RenderState.SourceBlend, Blend.SourceAlpha);
_device.SetRenderState(RenderState.DestinationBlend, Blend.InverseSourceAlpha);
foreach (ModelMesh modelMesh in Meshes.Where(m => !m.Opaque))
modelMesh.Draw(_vertexDeclaration, settings, decorators);
_device.SetRenderState(RenderState.AlphaBlendEnable, false);
_device.SetRenderState(RenderState.ZWriteEnable, true);
}
private IEnumerable<IDecorator> GetActiveDecorators(RenderSettings settings)
{
return _decorators.Where(d => d.IsActive(settings));
}