$#include "Material.h"

/// Describes how to render 3D geometries.
class Material : public Resource
{
public:
    /// Return number of techniques.
    unsigned GetNumTechniques() const { return techniques_.Size(); }
    /// Return technique entry by index.
    const TechniqueEntry& GetTechniqueEntry(unsigned index) const;
    /// Return technique by index.
    Technique* GetTechnique(unsigned index) const;
    /// Return pass by technique index and pass type.
    Pass* GetPass(unsigned index, StringHash passType) const;
    /// Return texture by unit.
    Texture* GetTexture(TextureUnit unit) const;
   /// Return all textures.
    const SharedPtr<Texture>* GetTextures() const { return &textures_[0]; }
    /// Return shader parameter.
    const Vector4& GetShaderParameter(const String& name) const;
    /// Return normal culling mode.
    CullMode GetCullMode() const { return cullMode_; }
    /// Return culling mode for shadows.
    CullMode GetShadowCullMode() const { return shadowCullMode_; }
    /// Return depth bias.
    const BiasParameters& GetDepthBias() const { return depthBias_; }
    /// Return last auxiliary view rendered frame number.
    unsigned GetAuxViewFrameNumber() const { return auxViewFrameNumber_; }
    /// Return whether should render occlusion.
    bool GetOcclusion() const { return occlusion_; }
    /// Return whether should render specular.
    bool GetSpecular() const { return specular_; }
    
    /// Return name for texture unit.
    static String GetTextureUnitName(TextureUnit unit);
};