/// <summary>
/// Sets the texture parameter from the appropriate picture sets.
/// </summary>
/// <returns>
/// If true, a valid texture was set on the device by this function.
/// </returns>
static bool SetTexture(Board board, int textureIndex)
{
LightingEffect lightingEffect = board.LightingEffect;
Texture2D texture = null;
if (board.CurrentPictureSet != null)
{
texture = board.CurrentPictureSet.GetTexture(textureIndex);
}
if ((texture == null) && (board.NextPictureSet != null))
{
texture = board.NextPictureSet.GetTexture(textureIndex);
}
lightingEffect.DiffuseTexture.SetValue(texture);
return(texture != null);
}
public void Draw(Board board, Model chipModel, Matrix baseTransform,
Matrix[] chipTransforms)
{
Matrix world = OrientationMatrix * baseTransform;
LightingEffect lightingEffect = board.LightingEffect;
// Set model level render states
lightingEffect.GlowScale.SetValue(GlowScale);
lightingEffect.ColorOverride.SetValue(ColorOverride);
lightingEffect.TexCoordScale.SetValue(TexCoordScale);
foreach (ModelMesh mesh in chipModel.Meshes)
{
// Calculate matricies
Matrix modelWorld = chipTransforms[mesh.ParentBone.Index] * world;
Matrix modelWorldView = modelWorld * board.Camera.ViewMatrix;
Matrix modelWorldViewProjection =
modelWorldView * board.Camera.ProjectionMatrix;
// Set matricies
lightingEffect.World.SetValue(modelWorld);
lightingEffect.WorldView.SetValue(modelWorldView);
lightingEffect.WorldViewProjection.SetValue(modelWorldViewProjection);
foreach (ModelMeshPart meshPart in mesh.MeshParts)
{
// Get the material identifier out of the mesh part tag
bool textureSet = false;
string materialIdentifier = meshPart.Tag as string;
if (materialIdentifier != null)
{
// The material identifier is used to determine which textures
// to draw with
switch (materialIdentifier)
{
case "Front":
lightingEffect.TexCoordTranslation.SetValue(
this.TexCoordTranslationFront);
textureSet = SetTexture(board, 0);
break;
case "Back":
lightingEffect.TexCoordTranslation.SetValue(
this.TexCoordTranslationBack);
// Reuse the front side texture on single sided boards
if (board.TwoSided)
{
textureSet = SetTexture(board, 1);
}
else
{
textureSet = SetTexture(board, 0);
}
break;
default:
lightingEffect.DiffuseTexture.SetValue((Texture2D)null);
break;
}
}
// set the appropriate technique, depending on how many textures
// are being rendered
if (textureSet)
{
lightingEffect.Effect.CurrentTechnique =
lightingEffect.SingleTextureTechnique;
}
else
{
lightingEffect.Effect.CurrentTechnique =
lightingEffect.NoTextureTechnique;
}
// draw the mesh
lightingEffect.Effect.Begin();
DrawHelper.DrawMeshPart(mesh, meshPart, lightingEffect.Effect);
lightingEffect.Effect.End();
}
}
}