/// <summary>
/// Renders the mesh with the specified transformation. This alternate render method
/// supplements the base class rendering to provide part-by-part texturing support.
/// </summary>
/// <param name="modelTransform"></param>
public void Render(Matrix3D modelTransform)
{
// setup rasterization
RasterizerDescription rasterizerDescription = new RasterizerDescription()
{
FillMode = FillMode.Solid,
CullMode = CullMode.Back,
FrontCounterclockwise = false,
DepthBias = 0,
DepthBiasClamp = 0,
SlopeScaledDepthBias = 0,
DepthClipEnable = true,
ScissorEnable = false,
MultisampleEnable = true,
AntiAliasedLineEnable = true
};
try
{
solidRasterizerState = this.manager.device.CreateRasterizerState(rasterizerDescription);
rasterizerDescription.FillMode = FillMode.Wireframe;
wireframeRasterizerState = this.manager.device.CreateRasterizerState(rasterizerDescription);
base.Render(modelTransform.ToMatrix4x4F());
}
finally
{
if (solidRasterizerState != null)
{
solidRasterizerState.Dispose();
solidRasterizerState = null;
}
if (wireframeRasterizerState != null)
{
wireframeRasterizerState.Dispose();
wireframeRasterizerState = null;
}
currentRasterizerState = null;
}
}
private void RenderPart(Part part, Matrix3D parentMatrix, ShaderResourceView parentTextureOverride)
{
// set part transform
Transform3DGroup partGroup = new Transform3DGroup();
partGroup.Children.Add(new MatrixTransform3D(PartAnimation(part.name)));
partGroup.Children.Add(new MatrixTransform3D(part.partTransform.ToMatrix3D()));
partGroup.Children.Add(new MatrixTransform3D(parentMatrix));
parentMatrix = partGroup.Value;
ShaderResourceView textureOverride = UpdateRasterizerStateForPart(part);
if (textureOverride == null)
{
textureOverride = parentTextureOverride;
}
else
{
parentTextureOverride = textureOverride;
}
if (part.vertexBuffer != null)
{
EffectTechnique technique;
if (textureOverride != null)
{
technique = this.manager.techniqueRenderTexture;
this.manager.diffuseVariable.Resource = textureOverride;
}
else if (part.material == null)
{
technique = this.manager.techniqueRenderVertexColor;
}
else
{
if (part.material.textureResource != null)
{
technique = this.manager.techniqueRenderTexture;
this.manager.diffuseVariable.Resource = part.material.textureResource;
}
else
{
technique = this.manager.techniqueRenderMaterialColor;
this.manager.materialColorVariable.FloatVector = part.material.materialColor;
}
}
this.manager.worldVariable.Matrix = parentMatrix.ToMatrix4x4F();
//set up vertex buffer and index buffer
uint stride = (uint)Marshal.SizeOf(typeof(XMeshVertex));
uint offset = 0;
this.manager.device.IA.SetVertexBuffers(0, new D3DBuffer[]
{ part.vertexBuffer },
new uint[] { stride },
new uint[] { offset });
//Set primitive topology
this.manager.device.IA.PrimitiveTopology = PrimitiveTopology.TriangleList;
TechniqueDescription techDesc = technique.Description;
for (uint p = 0; p < techDesc.Passes; ++p)
{
technique.GetPassByIndex(p).Apply();
PassDescription passDescription = technique.GetPassByIndex(p).Description;
using (InputLayout inputLayout = this.manager.device.CreateInputLayout(
part.dataDescription,
passDescription.InputAssemblerInputSignature,
passDescription.InputAssemblerInputSignatureSize))
{
// set vertex layout
this.manager.device.IA.InputLayout = inputLayout;
// draw part
this.manager.device.Draw((uint)part.vertexCount, 0);
// Note: In Direct3D 10, the device will not retain a reference
// to the input layout, so it's important to reset the device's
// input layout before disposing the object. Were this code
// using Direct3D 11, the device would in fact retain a reference
// and so it would be safe to go ahead and dispose the input
// layout without resetting it; in that case, there could be just
// a single assignment to null outside the 'for' loop, or even
// no assignment at all.
this.manager.device.IA.InputLayout = null;
}
}
}
foreach (Part childPart in part.parts)
{
RenderPart(childPart, parentMatrix, parentTextureOverride);
}
}
