Method addHitGroup

Source/Falcor/Core/Program/Program.h:496–519

* Add a hit group. * A hit group consists of any combination of closest hit, any hit, and intersection shaders. * Note that a hit group that contains an intersection shader only be used with procedural geometry. * A hit group that does not contain an intersection shader can only be used with triangle geometry. * It is valid to create a hit group entirely without entry points. G

     * @return Shader ID for hit group. This is used when building the binding table.
     */
    ShaderID addHitGroup(
        const std::string& closestHit,
        const std::string& anyHit = "",
        const std::string& intersection = "",
        const TypeConformanceList& typeConformances_ = TypeConformanceList(),
        const std::string& entryPointNameSuffix = ""
    )
    {
        FALCOR_CHECK(
            !(closestHit.empty() && anyHit.empty() && intersection.empty()),
            "At least one of 'closestHit', 'anyHit' or 'intersection' entry point names must not be empty"
        );

        auto& group = addEntryPointGroup();
        group.setTypeConformances(typeConformances_);
        if (!closestHit.empty())
            group.addEntryPoint(ShaderType::ClosestHit, closestHit, closestHit + entryPointNameSuffix);
        if (!anyHit.empty())
            group.addEntryPoint(ShaderType::AnyHit, anyHit, anyHit + entryPointNameSuffix);
        if (!intersection.empty())
            group.addEntryPoint(ShaderType::Intersection, intersection, intersection + entryPointNameSuffix);

        return ShaderID{int32_t(entryPointGroups.size() - 1)};
    }

    /**
     * Set the max recursion depth.