/// <summary>
/// Render
/// </summary>
/// <param name="setMat">Set matrix</param>
/// <param name="techniqueName">Technique name</param>
/// <param name="renderDelegate">Render delegate</param>
public void RenderCave(Material setMat,
//auto: List<Vector3> setLightPositions,
BaseGame.RenderDelegate renderDelegate)
{
// And set all the other parameters
detailGroundDiffuseTexture.SetValue(groundDiffuseTexture.XnaTexture);
detailGroundNormalTexture.SetValue(groundNormalTexture.XnaTexture);
detailGroundHeightTexture.SetValue(groundHeightTexture.XnaTexture);
detailWallDiffuseTexture.SetValue(wallDiffuseTexture.XnaTexture);
detailWallNormalTexture.SetValue(wallNormalTexture.XnaTexture);
detailWallHeightTexture.SetValue(wallHeightTexture.XnaTexture);
// Set all the basic parameters.
SetParameters(setMat);
// Set all light positions that are close to us.
if (LightManager.closestLightsForRendering.Count != 6)
throw new InvalidOperationException(
"You must always set exactly " + LightManager.NumberOfLights +
" lights for the shader!");
lightPositions.SetValue(LightManager.closestLightsForRendering.ToArray());
// Start effect (current technique should be set)
xnaEffect.Begin(SaveStateMode.None);
// Start first pass
xnaEffect.CurrentTechnique.Passes[0].Begin();
// Render
renderDelegate();
// End pass and shader
xnaEffect.CurrentTechnique.Passes[0].End();
xnaEffect.End();
}
/// <summary>
/// Create plane renderer
/// </summary>
/// <param name="setPos">Set position</param>
/// <param name="setPlane">Set plane</param>
/// <param name="setMaterial">Set material</param>
/// <param name="setSize">Set size</param>
public PlaneRenderer(Vector3 setPos,
Plane setPlane, Material setMaterial, float setSize)
{
pos = setPos;
plane = setPlane;
material = setMaterial;
size = setSize;
}
/// <summary>
/// Set parameters, this overload sets all material parameters too.
/// </summary>
public virtual void SetParametersOptimized(Material setMat)
{
// No need to set world matrix, will be done later in mesh rendering
// in the MeshRenderManager. All the rest is set with help of the
// SetParametersOptimizedGeneral above.
// Only update ambient, diffuse, specular and the textures, the rest
// will not change for a material change in MeshRenderManager.
ambientColor.SetValue(setMat.ambientColor.ToVector4());
diffuseColor.SetValue(setMat.diffuseColor.ToVector4());
specularColor.SetValue(setMat.specularColor.ToVector4());
if (setMat.diffuseTexture != null)
diffuseTexture.SetValue(setMat.diffuseTexture.XnaTexture);
if (setMat.normalTexture != null)
normalTexture.SetValue(setMat.normalTexture.XnaTexture);
}
/// <summary>
/// Set parameters, this overload sets all material parameters too.
/// </summary>
public virtual void SetParameters(Material setMat)
{
if (worldViewProj != null)
worldViewProj.SetValue(BaseGame.WorldViewProjectionMatrix);
if (viewProj != null)
viewProj.SetValue(BaseGame.ViewProjectionMatrix);
if (world != null)
world.SetValue(BaseGame.WorldMatrix);
if (viewInverse != null)
viewInverse.SetValue(BaseGame.InverseViewMatrix);
if (cameraPos != null)
cameraPos.SetValue(BaseGame.CameraPos);
//obs: if (lightDir != null)
//obs: lightDir.SetValue(BaseGame.LightDirection);
// Set all material properties
if (setMat != null)
{
AmbientColor = setMat.ambientColor;
DiffuseColor = setMat.diffuseColor;
SpecularColor = setMat.specularColor;
SpecularPower = setMat.specularPower;
DiffuseTexture = setMat.diffuseTexture;
NormalTexture = setMat.normalTexture;
SpecularTexture = setMat.specularTexture;
Time = BaseGame.TotalTime;
} // if (setMat)
}
/// <summary>
/// Render single pass shader, little faster and simpler than
/// Render and it just uses the current technique and renderes only
/// the first pass (most shaders have only 1 pass anyway).
/// Used for MeshRenderManager!
/// </summary>
/// <param name="renderDelegate">Render delegate</param>
public void RenderSinglePassShader(
Material setMat,
//always use the LightManager! List<Vector3> setLightPositions,
BaseGame.RenderDelegate renderDelegate)
{
SetParameters(setMat);
// Set all light positions that are close to us.
//NOTE: We are only using 6 lights for the cave itself, all the
// static and animated models are just using 3 lights (faster).
if (LightManager.closestLightsForRendering.Count < 3)
throw new InvalidOperationException(
"You must always have at least 3 lights for the shader!");
if (lightPositions != null)
lightPositions.SetValue(
LightManager.closestLightsForRendering.GetRange(0, 3).ToArray());
// Start effect (current technique should be set)
xnaEffect.Begin(SaveStateMode.None);
// Start first pass
xnaEffect.CurrentTechnique.Passes[0].Begin();
// Render
renderDelegate();
// End pass and shader
xnaEffect.CurrentTechnique.Passes[0].End();
xnaEffect.End();
}
/// <summary>
/// Render
/// </summary>
/// <param name="setMat">Set matrix</param>
/// <param name="techniqueName">Technique name</param>
/// <param name="renderDelegate">Render delegate</param>
public void RenderNoLight(Material setMat,
string techniqueName,
BaseGame.RenderDelegate renderDelegate)
{
SetParameters(setMat);
/*will become important later in the book.
// Can we do the requested technique?0
// For graphic cards not supporting ps2.0, fall back to ps1.1
if (BaseGame.CanUsePS20 == false &&
techniqueName.EndsWith("20"))
// Use same technique without the 20 ending!
techniqueName = techniqueName.Substring(0, techniqueName.Length - 2);
*/
// Start shader
xnaEffect.CurrentTechnique = xnaEffect.Techniques[techniqueName];
xnaEffect.Begin(SaveStateMode.None);
// Render all passes (usually just one)
//foreach (EffectPass pass in effect.CurrentTechnique.Passes)
for (int num = 0; num < xnaEffect.CurrentTechnique.Passes.Count; num++)
{
EffectPass pass = xnaEffect.CurrentTechnique.Passes[num];
pass.Begin();
renderDelegate();
pass.End();
} // foreach (pass)
// End shader
xnaEffect.End();
}
/*not used anymore, works fine, but we had problems at the GDC exporting
* shader material data in 3DS Max 9 (always crashes the exporter).
* Instead the AutoAssignMaterial method below is used.
/// <summary>
/// Load material information from a collada file
/// </summary>
/// <param name="colladaFile">Collada file xml node</param>
private void LoadMaterial(XmlNode colladaFile)
{
// First get all textures, if there are none, ignore and quit.
XmlNode texturesNode =
XmlHelper.GetChildNode(colladaFile, "library_images");
if (texturesNode == null)
return;
// Get all used texture images
Dictionary<string, Texture> textures = new Dictionary<string, Texture>();
foreach (XmlNode textureNode in texturesNode)
{
if (textureNode.Name == "image")
{
string filename =
XmlHelper.GetChildNode(textureNode, "init_from").InnerText;
textures.Add(
XmlHelper.GetXmlAttribute(textureNode, "id"),
new Texture(StringHelper.ExtractFilename(filename, true)));
} // if (texture.name)
else
throw new InvalidOperationException(
"Unknown Node " + textureNode.Name + " found in library_images");
} // foreach (texture)
// Load all effects to find out the used effect in our material
XmlNode effectsNode =
XmlHelper.GetChildNode(colladaFile, "library_effects");
if (effectsNode == null)
throw new InvalidOperationException(
"library_effects node not found while loading Collada file " +name);
Dictionary<string, string> effectIds = new Dictionary<string, string>();
foreach (XmlNode effectNode in effectsNode)
{
XmlNode fileNode = XmlHelper.GetChildNode(effectNode, "import");
if (fileNode == null)
{
// Use "include" node instead, this one is used when we got valid
// techniques selected in the material (was sometimes used collada
// 1.4 and different versions of collada exporters than ColladaMax).
fileNode = XmlHelper.GetChildNode(effectNode, "include");
// Still null?
if (fileNode == null)
throw new InvalidOperationException(
"Import or include node not found in effect node, file: " +name);
} // if (filenode)
effectIds.Add(
XmlHelper.GetXmlAttribute(effectNode, "id"),
XmlHelper.GetXmlAttribute(fileNode, "url"));
} // foreach (effect)
// And finally get all material nodes, but we only support one material
// here, we will use the first one that uses shaders and ignore the rest.
XmlNode materialsNode =
XmlHelper.GetChildNode(colladaFile, "library_materials");
if (materialsNode == null)
throw new InvalidOperationException(
"library_materials node not found while loading Collada file "+name);
foreach (XmlNode materialNode in materialsNode)
{
if (materialNode.Name == "material")
{
Material newMaterial =
new Material(materialNode, textures, effectIds);
if (material == null ||
newMaterial.shader != null)
material = newMaterial;
} // if (materialNode.name)
else
throw new InvalidOperationException("Unknown Node " +
materialNode.Name + " found in library_materials");
} // foreach (material)
} // LoadMaterial(colladaFile, TextureIDDictionary, MaterialIDDictionary)'
*/
/// <summary>
/// Auto assign material
/// </summary>
protected void AutoAssignMaterial()
{
// Just load the material from the name of this model
material = new Material(
name,
name + "Normal",
name + "Specular");
// Custom material stuff for Cave (detail maps and different shader)
// is handled in the CavePointNormalMapping class.
// But make sure to use black for ambient, very bright yellow for
// diffuse and white for specular.
if (isCave)
{
material.ambientColor = Color.Black;
material.diffuseColor = new Color(255, 255, 240);
material.specularColor = Color.White;
material.specularPower = 22;
} // if (name)
else if (name.Contains("Goblin") ||
name.Contains("Orge"))
{
// Use a higher specular for the monsters.
material.specularPower = 16;
material.specularColor = new Color(180, 180, 180);
// Increase ambient a little (better visibility of monsters)
material.ambientColor = new Color(80, 80, 80);
} // else if
}
/// <summary>
/// Update parameters
/// </summary>
public override void SetParameters(Material setMat)
{
// Can't set parameters if loading failed!
if (xnaEffect == null)
return;
/*already set, don't change!
shadowNearPlane = 1.0f;
shadowFarPlane = 28;
virtualLightDistance = 24;
virtualVisibleRange = 23.5f;
*/
//if (BaseGame.CanUsePS20)
//{
compareDepthBias = 0.0025f;// 0.0075f;//0.00025f;
shadowMapDepthBiasValue = 0.0025f;// 0.0075f;//0.00025f;
/*not supported anyway!} // if (BaseGame.CanUsePS20)
else
{
// Ps 1.1 isn't as percise!
compareDepthBias = 0.0025f;
shadowMapDepthBiasValue = 0.002f;
} // else
*/
base.SetParameters(setMat);
// Set all extra parameters for this shader
depthBias.SetValue(compareDepthBias);
shadowMapDepthBias.SetValue(shadowMapDepthBiasValue);
shadowMapTexelSize.SetValue(
new Vector2(texelWidth, texelHeight));
nearPlane.SetValue(shadowNearPlane);
farPlane.SetValue(shadowFarPlane);
}
