110 lines
2.8 KiB
C
110 lines
2.8 KiB
C
// Copyright (c) Wojciech Figat. All rights reserved.
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#pragma once
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#include "Engine/Core/Math/Matrix.h"
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#include "Engine/Core/Math/Vector2.h"
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#include "Engine/Core/Math/Vector3.h"
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#include "Engine/Core/Math/Vector4.h"
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#include "Engine/Graphics/Config.h"
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/// <summary>
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/// Structure that contains information about GBuffer for shaders.
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/// </summary>
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GPU_CB_STRUCT(ShaderGBufferData {
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Float4 ViewInfo;
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Float4 ScreenSize;
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Float3 ViewPos;
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float ViewFar;
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Matrix InvViewMatrix;
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Matrix InvProjectionMatrix;
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});
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/// <summary>
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/// Structure that contains information about exponential height fog for shaders.
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/// </summary>
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GPU_CB_STRUCT(ShaderExponentialHeightFogData {
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Float3 FogInscatteringColor;
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float FogMinOpacity;
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float FogDensity;
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float FogHeight;
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float FogHeightFalloff;
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float FogAtViewPosition;
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Float3 InscatteringLightDirection;
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float ApplyDirectionalInscattering;
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Float3 DirectionalInscatteringColor;
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float DirectionalInscatteringExponent;
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float FogCutoffDistance;
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float VolumetricFogMaxDistance;
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float DirectionalInscatteringStartDistance;
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float StartDistance;
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});
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/// <summary>
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/// Structure that contains information about volumetric fog
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/// </summary>
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GPU_CB_STRUCT(ShaderVolumetricFogData {
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Float4 GridSliceParameters;
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Float2 ScreenSize;
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Float2 VolumeTexelSize; // Scaled for dithering
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});
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/// <summary>
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/// Structure that contains information about atmosphere fog for shaders.
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/// </summary>
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GPU_CB_STRUCT(ShaderAtmosphericFogData {
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float AtmosphericFogDensityScale;
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float AtmosphericFogSunDiscScale;
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float AtmosphericFogDistanceScale;
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float AtmosphericFogGroundOffset;
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float AtmosphericFogAltitudeScale;
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float AtmosphericFogStartDistance;
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float AtmosphericFogPower;
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float AtmosphericFogDistanceOffset;
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Float3 AtmosphericFogSunDirection;
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float AtmosphericFogSunPower;
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Float3 AtmosphericFogSunColor;
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float AtmosphericFogDensityOffset;
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});
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/// <summary>
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/// Structure that contains information about light for shaders.
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/// </summary>
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GPU_CB_STRUCT(ShaderLightData {
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Float2 SpotAngles;
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float SourceRadius;
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float SourceLength;
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Float3 Color;
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float MinRoughness;
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Float3 Position;
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uint32 ShadowsBufferAddress;
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Float3 Direction;
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float Radius;
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float FalloffExponent;
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float InverseSquared;
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float RadiusInv;
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float Dummy0;
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});
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/// <summary>
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/// Packed env probe data
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/// </summary>
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GPU_CB_STRUCT(ShaderEnvProbeData {
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Float4 Data0;
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Float4 Data1;
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Float4 Data2;
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});
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// Minimum roughness value used for shading (prevent 0 roughness which causes NaNs in Vis_SmithJointApprox)
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#define MIN_ROUGHNESS 0.04f
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// Maximum amount of directional light cascades (using CSM technique)
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#define MAX_CSM_CASCADES 4
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