public void Draw(DrawState state)
{
//switch rendering mode based on the TutorialRenderMode flag
switch (state.GetDrawFlag <TutorialRenderMode>())
{
case TutorialRenderMode.DepthOutput:
//bind the depth output shader
state.GetShader <Xen.Ex.Shaders.NonLinearDepthOutRg>().Bind(state);
break;
case TutorialRenderMode.DrawShadow:
//bind the shadow rendering shader
Shader.ShadowShader shader = state.GetShader <Shader.ShadowShader>();
shader.TextureMap = material.TextureMap;
shader.TextureSampler = material.TextureMapSampler;
shader.Bind(state);
break;
default:
//no flag known specified
material.Bind(state);
break;
}
//draw the ground
vertices.Draw(state, null, PrimitiveType.TriangleFan);
}
/// <summary>
/// Draw the model. This class automatically assigns shaders when drawing
/// </summary>
/// <param name="state"></param>
public void Draw(DrawState state)
{
if (modelData == null)
{
throw new InvalidOperationException("ModelData is null");
}
if (controller != null)
{
controller.WaitForAsyncAnimation(state, state.FrameIndex, true);
if (controller.IsDisposed)
{
controller = null;
}
}
if (controller != null && hierarchy == null)
{
hierarchy = new MaterialAnimationTransformHierarchy(modelData.skeleton);
}
if (hierarchy != null)
{
hierarchy.UpdateTransformHierarchy(controller.transformedBones);
}
ModelInstanceShaderProvider shaderProvider = this.shaderProvider;
MaterialLightCollection lights = this.lights;
ShaderProviderFlag providerFlag;
MaterialLightCollection.LightCollectionFlag lightsFlag;
state.GetDrawFlag(out providerFlag);
if (providerFlag.OverrideShaderProvider)
{
shaderProvider = providerFlag.ShaderProvider;
}
state.GetDrawFlag(out lightsFlag);
if (lightsFlag.OverrideLightCollection)
{
lights = lightsFlag.LightCollection;
}
if (shaderProvider != null)
{
if (controller != null)
{
shaderProvider.BeginDraw(state, controller.transformedBones, hierarchy.GetMatrixData());
}
else
{
shaderProvider.BeginDraw(state);
}
}
Vector3 boundsMin, boundsMax;
ContainmentType cullModel = ContainmentType.Contains;
//if there is just one geometry object, then the ICullable.CullTest() call will have been suficient.
bool skipCullTest = this.modelData != null && this.modelData.meshes.Length == 1 && this.modelData.meshes[0].geometry.Length == 1;
if (!skipCullTest)
{
if (controller != null)
{
cullModel = state.Culler.IntersectBox(ref controller.boundsMin, ref controller.boundsMax);
}
else
{
cullModel = state.Culler.IntersectBox(ref modelData.staticBounds.minimum, ref modelData.staticBounds.maximum);
}
}
if (cullModel != ContainmentType.Disjoint)
{
for (int m = 0; m < modelData.meshes.Length; m++)
{
MeshData mesh = modelData.meshes[m];
if (shaderProvider != null)
{
shaderProvider.BeginMesh(state, mesh);
}
ContainmentType cullMesh = cullModel;
if (cullModel == ContainmentType.Intersects && modelData.meshes.Length > 1)
{
if (controller != null)
{
controller.ComputeMeshBounds(m, out boundsMin, out boundsMax);
cullMesh = state.Culler.IntersectBox(ref boundsMin, ref boundsMax);
}
else
{
cullMesh = state.Culler.IntersectBox(ref mesh.staticBounds.minimum, ref mesh.staticBounds.maximum);
}
}
if (cullMesh != ContainmentType.Disjoint)
{
for (int g = 0; g < mesh.geometry.Length; g++)
{
GeometryData geom = mesh.geometry[g];
MaterialShader shader = geom.MaterialShader;
if (shaderProvider != null && shaderProvider.BeginGeometryShaderOverride(state, geom, lights))
{
shader = null;
}
bool cullTest = true;
if (cullMesh == ContainmentType.Intersects && mesh.geometry.Length > 1)
{
if (controller != null)
{
controller.ComputeGeometryBounds(m, g, out boundsMin, out boundsMax);
cullTest = state.Culler.TestBox(ref boundsMin, ref boundsMax);
}
else
{
cullTest = state.Culler.TestBox(ref geom.staticBounds.minimum, ref geom.staticBounds.maximum);
}
}
if (cullTest)
{
if (shader != null)
{
shader.AnimationTransforms = hierarchy;
shader.Lights = lights;
shader.Bind(state);
}
geom.Vertices.Draw(state, geom.Indices, PrimitiveType.TriangleList);
}
if (shaderProvider != null)
{
shaderProvider.EndGeometry(state, geom);
}
}
}
if (shaderProvider != null)
{
shaderProvider.EndMesh(state, mesh);
}
}
}
if (shaderProvider != null)
{
shaderProvider.EndDraw(state);
}
}
//this is called just before geometry is drawn,
//return true to indicate the shader has been set
public override bool BeginGeometryShaderOverride(DrawState state, GeometryData geometry, Xen.Ex.Material.MaterialLightCollection lights)
{
//query the draw flag,
switch (state.GetDrawFlag <TutorialRenderMode>())
{
case TutorialRenderMode.DrawShadow:
{
//bind the shadow rendering shader...
if (animationBoneData == null)
{
Shader.ShadowShader shader = state.GetShader <Shader.ShadowShader>();
shader.TextureMap = geometry.MaterialShader.TextureMap;
shader.TextureSampler = geometry.MaterialShader.TextureMapSampler;
shader.Bind(state);
}
else
{
//bind the animating shader,
Shader.ShadowShaderBlend shader = state.GetShader <Shader.ShadowShaderBlend>();
//set the blend matrix data
if (animationBoneDataDirty)
{
//use the 'animationBoneDataDirty' bool so animation data is only copied once.
//this could happen if a single model has many pieces of geometry.
shader.SetBlendMatrices(animationBoneData);
animationBoneDataDirty = false;
}
shader.TextureMap = geometry.MaterialShader.TextureMap;
shader.TextureSampler = geometry.MaterialShader.TextureMapSampler;
shader.Bind(state);
}
return(true); //shader was assigned
}
case TutorialRenderMode.DepthOutput:
{
//determine if alpha test is being used (in this tutorial it won't be - but do it anyway...)
bool alphaTest = state.RenderState.AlphaTest.Enabled;
if (alphaTest)
{
//alpha test is only needed if a texture is set
alphaTest &= geometry.MaterialShader.TextureMap != null;
}
if (alphaTest)
{
//bind a depth output shader that samples a texture for alpha (for alpha test compatibility)
if (this.animationBoneData != null)
{
//the model is animated
//get the shader
Xen.Ex.Shaders.NonLinearDepthOutRgTextureAlphaBlend shader = state.GetShader <Xen.Ex.Shaders.NonLinearDepthOutRgTextureAlphaBlend>();
//set animation data (it's possible this is called redundantly, so logic here could be improved)
if (animationBoneDataDirty)
{
shader.SetBlendMatrices(this.animationBoneData);
animationBoneDataDirty = false;
}
//set the texture
shader.AlphaTexture = geometry.MaterialShader.TextureMap;
shader.AlphaTextureSampler = geometry.MaterialShader.TextureMapSampler;
//bind
shader.Bind(state);
}
else
{
//get the shader
Xen.Ex.Shaders.NonLinearDepthOutRgTextureAlpha shader = state.GetShader <Xen.Ex.Shaders.NonLinearDepthOutRgTextureAlpha>();
//set the texture
shader.AlphaTexture = geometry.MaterialShader.TextureMap;
shader.AlphaTextureSampler = geometry.MaterialShader.TextureMapSampler;
shader.Bind(state); // bind the basic depth out shader
}
}
else
{
//bind a simple depth output shader
if (this.animationBoneData != null)
{
//the model is animated
Xen.Ex.Shaders.NonLinearDepthOutRgBlend shader = state.GetShader <Xen.Ex.Shaders.NonLinearDepthOutRgBlend>();
//set animation data (it's possible this is called redundantly, so logic here could be improved)
if (animationBoneDataDirty)
{
shader.SetBlendMatrices(this.animationBoneData);
animationBoneDataDirty = false;
}
//bind
shader.Bind(state);
}
else
{
state.GetShader <Xen.Ex.Shaders.NonLinearDepthOutRg>().Bind(state); // bind the basic depth out shader
}
}
return(true); //shader was assigned
}
}
//false, because no shader has been bound (will use the model material shader)
return(false);
}
/// <summary>
/// Draw all the model batch instances
/// </summary>
/// <param name="state"></param>
public void Draw(DrawState state)
{
if (modelData == null)
{
throw new InvalidOperationException("ModelData is null");
}
if (geometry == null)
{
SetupGeometry();
}
int geometryIndex = 0;
BatchModelShaderProvider shaderProvider = this.shaderProvider;
MaterialLightCollection lights = this.lights;
ShaderProviderFlag providerFlag;
MaterialLightCollection.LightCollectionFlag lightsFlag;
state.GetDrawFlag(out providerFlag);
if (providerFlag.OverrideShaderProvider)
{
shaderProvider = providerFlag.ShaderProvider;
}
state.GetDrawFlag(out lightsFlag);
if (lightsFlag.OverrideLightCollection)
{
lights = lightsFlag.LightCollection;
}
if (shaderProvider != null)
{
shaderProvider.BeginDraw(state);
}
//loop through the model data
for (int m = 0; m < modelData.meshes.Length; m++)
{
MeshData mesh = modelData.meshes[m];
if (shaderProvider != null)
{
shaderProvider.BeginMesh(state, mesh);
}
for (int g = 0; g < mesh.geometry.Length; g++)
{
GeometryData geom = mesh.geometry[g];
GeometrySet set = this.geometry[geometryIndex];
if (set.count > 0)
{
bool instancing = state.SupportsHardwareInstancing && set.count > 2;
if (shaderProvider == null || !shaderProvider.BeginGeometryShaderOverride(state, geom, lights, instancing))
{
MaterialShader shader = geom.MaterialShader;
shader.AnimationTransforms = null;
shader.UseHardwareInstancing = instancing;
shader.Lights = lights;
shader.Bind(state);
}
//draw the geometry
if (instancing)
{
state.DrawBatch(geom.Vertices, geom.Indices, PrimitiveType.TriangleList, null, set.instances, set.count);
}
else
{
for (int i = 0; i < set.count; i++)
{
state.PushWorldMatrixMultiply(ref set.instances[i]);
geom.Vertices.Draw(state, geom.Indices, PrimitiveType.TriangleList);
state.PopWorldMatrix();
}
}
if (shaderProvider != null)
{
shaderProvider.EndGeometry(state, geom);
}
}
set.count = 0;
geometryIndex++;
}
if (shaderProvider != null)
{
shaderProvider.EndMesh(state, mesh);
}
}
if (shaderProvider != null)
{
shaderProvider.EndDraw(state);
}
drawCount = 0;
}