/// <summary>
/// Allows the game component to draw itself.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Draw(GameTime gameTime)
{
Matrix world = fCamera.Camera.WorldMatrix;
Matrix view = fCamera.Camera.ViewMatrix;
Matrix projection = fCamera.Camera.ProjectionMatrix;
if (!fHalted)
{
fWorldAngle += Convert.ToSingle(gameTime.ElapsedGameTime.TotalSeconds * 1.5f);
}
world = Matrix.CreateRotationY(fWorldAngle);
GraphicsDevice.BlendState = BlendState.NonPremultiplied;
GraphicsDevice.DepthStencilState = DepthStencilState.None;
GraphicsDevice.RasterizerState = RasterizerState.CullNone;
GraphicsDevice.SamplerStates[0] = SamplerState.LinearWrap;
fSkyBox.SetTexture(fSkyBoxTextures[fCurrentSkybox]);
fSkyBox.Render(fCamera.Camera.ViewMatrix, fCamera.Camera.ProjectionMatrix, fCamera.Camera.Position, world);
GraphicsDevice.BlendState = BlendState.Opaque;
GraphicsDevice.DepthStencilState = DepthStencilState.Default;
//GraphicsDevice.RasterizerState = RasterizerState.CullCounterClockwise;
GraphicsDevice.RasterizerState = RasterizerState.CullNone;
GraphicsDevice.SamplerStates[0] = SamplerState.LinearClamp;
Model model = fModels[fCurrentModel];
Matrix wMatrix = Matrix.CreateScale(30) * world;
Matrix[] modelTransforms = new Matrix[model.Bones.Count];
model.CopyAbsoluteBoneTransformsTo(modelTransforms);
string shaderName = SHADERS[fCurrentShader];
foreach (ModelMesh mesh in model.Meshes)
{
try
{
if (shaderName.Equals(ORGINAL_SHADER))
{
//With standard effect...
foreach (BasicEffect x in mesh.Effects)
{
Matrix worldMatrix = modelTransforms[mesh.ParentBone.Index] * wMatrix;
x.World = worldMatrix * mesh.ParentBone.Transform;
x.EnableDefaultLighting();
x.PreferPerPixelLighting = true;
x.View = view;
x.Projection = projection;
}
mesh.Draw();
}
else if (shaderName.Equals(ORGINAL_SHADER_TEXT))
{
//With standard effect...
foreach (BasicEffect x in mesh.Effects)
{
Matrix worldMatrix = modelTransforms[mesh.ParentBone.Index] * wMatrix;
x.World = worldMatrix * mesh.ParentBone.Transform;
x.EnableDefaultLighting();
x.PreferPerPixelLighting = true;
x.View = view;
x.Projection = projection;
x.TextureEnabled = true;
//x.AmbientLightColor = new Vector3(1.0f);
//x.World = modelTransforms[mesh.ParentBone.Index];
}
mesh.Draw();
}
else
{
Effect effect = fShaders[fCurrentShader];
Effect[] originalEffects = new Effect[mesh.MeshParts.Count];
for (int i = 0; i < mesh.MeshParts.Count; i++)
{
originalEffects[i] = mesh.MeshParts[i].Effect;
}
try
{
for (int i = 0; i < mesh.MeshParts.Count; i++)
{
mesh.MeshParts[i].Effect = effect;
Matrix worldMatrix = modelTransforms[mesh.ParentBone.Index] * wMatrix;
Matrix worldInverseTransposeMatrix = Matrix.Transpose(Matrix.Invert(mesh.ParentBone.Transform * world));
Vector3 viewVector = new Vector3(fCamera.Camera.ViewMatrix.M13, fCamera.Camera.ViewMatrix.M23, fCamera.Camera.ViewMatrix.M33);
effect.Parameters["World"].SetValue(worldMatrix * mesh.ParentBone.Transform);
effect.Parameters["View"].SetValue(view);
effect.Parameters["Projection"].SetValue(projection);
switch (shaderName)
{
case "Ambient":
effect.Parameters["AmbientColor"].SetValue(Color.Green.ToVector4());
effect.Parameters["AmbientIntensity"].SetValue(0.5f);
break;
case "DiffuseLightning":
effect.Parameters["AmbientColor"].SetValue(Color.White.ToVector4());
effect.Parameters["AmbientIntensity"].SetValue(0.2f);
effect.Parameters["WorldInverseTranspose"].SetValue(worldInverseTransposeMatrix);
break;
case "SpecularLightning":
effect.Parameters["AmbientColor"].SetValue(Color.Red.ToVector4());
effect.Parameters["AmbientIntensity"].SetValue(0.5f);
effect.Parameters["WorldInverseTranspose"].SetValue(worldInverseTransposeMatrix);
effect.Parameters["ViewVector"].SetValue(viewVector);
break;
case "TextureShader":
effect.Parameters["AmbientColor"].SetValue(1.0f);
effect.Parameters["AmbientIntensity"].SetValue(0.1f);
effect.Parameters["WorldInverseTranspose"].SetValue(worldInverseTransposeMatrix);
effect.Parameters["ViewVector"].SetValue(viewVector);
// TODO: now only the first texture in the model
effect.Parameters["ModelTexture"].SetValue((originalEffects[i] as BasicEffect)?.Texture);
break;
case "NormalMapShader":
//effect.Parameters["DiffuseLightDirection"].SetValue(new Vector3(0, 0.5f, 1));
//effect.Parameters["WorldInverseTranspose"].SetValue(worldInverseTransposeMatrix);
//effect.Parameters["ModelTexture"].SetValue((originalEffects[i] as BasicEffect)?.Texture);
// NORMAL MAP ONLY FOR HELICOPTER
//effect.Parameters["NormalMap"].SetValue(fNormalMap);
break;
case "ToonShader":
effect.Parameters["WorldInverseTranspose"].SetValue(worldInverseTransposeMatrix);
effect.Parameters["Texture"].SetValue((originalEffects[i] as BasicEffect)?.Texture);
break;
}
}
mesh.Draw();
}
finally
{
for (int i = 0; i < mesh.MeshParts.Count; i++)
{
mesh.MeshParts[i].Effect = originalEffects[i];
}
}
}
}
catch (Exception e)
{
}
}
base.Draw(gameTime);
}