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123 lines
4.3 KiB
C++
123 lines
4.3 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#pragma once
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#include <AzCore/EBus/EBus.h>
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#include <AzCore/std/containers/vector.h>
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#include <AzCore/std/containers/fixed_vector.h>
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struct IMaterial;
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class ITexture;
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namespace Terrain
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{
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struct MacroMaterial
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{
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// Textures
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_smart_ptr<ITexture> m_macroColorMap = nullptr;
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_smart_ptr<ITexture> m_macroGlossMap = nullptr;
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_smart_ptr<ITexture> m_macroNormalMap = nullptr;
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// Material Params
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AZ::Color m_macroColorMapColor;
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float m_macroGlossMapScale = 1.0f;
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float m_macroNormalMapScale = 1.0f;
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float m_macroSpecReflectance = 0.03f;
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void Clear()
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{
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m_macroColorMap = nullptr;
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m_macroGlossMap = nullptr;
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m_macroNormalMap = nullptr;
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m_macroColorMapColor = AZ::Color(1.0f);
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m_macroGlossMapScale = 1.0f;
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m_macroNormalMapScale = 1.0f;
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m_macroSpecReflectance = 0.03f;
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}
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};
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struct TerrainMaterialLayer
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{
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_smart_ptr<IMaterial> m_material = nullptr;
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_smart_ptr<ITexture> m_splatTexture = nullptr;
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TerrainMaterialLayer(_smart_ptr<IMaterial> material, _smart_ptr<ITexture> splatTexture)
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: m_material(material)
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, m_splatTexture(splatTexture)
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{
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}
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};
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struct RegionMaterials
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{
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MacroMaterial m_macroMaterial;
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AZStd::vector<TerrainMaterialLayer> m_materialLayers;
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_smart_ptr<IMaterial> m_defaultMaterial = nullptr;
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RegionMaterials& operator=(const RegionMaterials& rhs) = default;
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void Clear()
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{
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m_materialLayers.clear();
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m_defaultMaterial = nullptr;
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m_macroMaterial.Clear();
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}
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};
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const AZ::u32 kMaxRegionsPerTerrainMaterialRequest = 16;
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typedef AZStd::pair<int, int> RegionIndex;
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typedef AZStd::fixed_vector<RegionIndex, kMaxRegionsPerTerrainMaterialRequest> RegionIndexVector;
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typedef AZStd::fixed_vector<RegionMaterials, kMaxRegionsPerTerrainMaterialRequest> RegionMaterialVector;
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enum class RequestResult
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{
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NoAssetsForRegion,
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Loading,
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Success
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};
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class WorldMaterialRequests
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: public AZ::EBusTraits
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{
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public:
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//////////////////////////////////////////////////////////////////////////
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// EBusTraits overrides
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static const AZ::EBusHandlerPolicy HandlerPolicy = AZ::EBusHandlerPolicy::Single;
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static const AZ::EBusAddressPolicy AddressPolicy = AZ::EBusAddressPolicy::Single;
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//////////////////////////////////////////////////////////////////////////
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//! allows multiple threads to call
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using MutexType = AZStd::recursive_mutex;
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virtual void LoadWorld(const AZStd::string& worldName, int regionSize) = 0;
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virtual RequestResult RequestRegionMaterials(const RegionIndexVector& regions, RegionMaterialVector& outRegionMaterials) = 0;
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// Parameters:
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// int tileX, tileY : Region tile indices
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// Returns:
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// bool : If true, region material data is loaded and exists. outMacroMaterial will be modified with the respective macro material data
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// If false, no region material data has been loaded or exists for the given tile (may still have invalid material layers).
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virtual RequestResult GetMacroMaterial(int tileX, int tileY, MacroMaterial& outMacroMaterial) = 0;
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virtual void GetTerrainPOMParameters(float& pomHeightBias, float& pomDisplacement, float& selfShadowStrength) = 0;
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//Get the surface type at a given position. If not loaded yet, returns "loadingMaterial".
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virtual AZStd::string_view GetSurfaceTypeAtPosition(AZ::Vector2 position) = 0;
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};
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using WorldMaterialRequestBus = AZ::EBus<WorldMaterialRequests>;
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} // namespace Terrain
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