diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_Common.azsli b/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_Common.azsli index fd6961c50d..314f15e8e1 100644 --- a/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_Common.azsli +++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_Common.azsli @@ -14,6 +14,8 @@ #include #include +#include +#include #include "MaterialInputs/BaseColorInput.azsli" #include "MaterialInputs/RoughnessInput.azsli" @@ -107,3 +109,18 @@ float GetDepth(float2 uv, float2 uv_ddx, float2 uv_ddy) { return SampleDepthOrHeightMap(MaterialSrg::m_depthInverted, MaterialSrg::m_depthMap, MaterialSrg::m_sampler, uv, uv_ddx, uv_ddy); } + +COMMON_OPTIONS_PARALLAX() + +bool ShouldHandleParallax() +{ + // Parallax mapping's non uniform uv transformations break screen space subsurface scattering, disable it when subsurface scattering is enabled. + return !o_enableSubsurfaceScattering && o_parallax_feature_enabled && o_useDepthMap; +} + +bool ShouldHandleParallaxInDepthShaders() +{ + // The depth pass shaders need to calculate parallax when the result could affect the depth buffer, or when + // parallax could affect texel clipping. + return ShouldHandleParallax() && (o_parallax_enablePixelDepthOffset || o_opacity_mode == OpacityMode::Cutout); +} diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_DepthPass_WithPS.azsl b/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_DepthPass_WithPS.azsl index 5d6c0fafd8..1aeed26697 100644 --- a/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_DepthPass_WithPS.azsl +++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_DepthPass_WithPS.azsl @@ -11,7 +11,6 @@ */ #include -#include #include "./EnhancedPBR_Common.azsli" #include #include @@ -56,7 +55,7 @@ VSDepthOutput MainVS(VSInput IN) OUT.m_uv[0] = mul(MaterialSrg::m_uvMatrix, float3(IN.m_uv0, 1.0)).xy; OUT.m_uv[1] = IN.m_uv1; - if(o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset) + if(ShouldHandleParallaxInDepthShaders()) { OUT.m_worldPosition = worldPosition.xyz; @@ -75,15 +74,9 @@ PSDepthOutput MainPS(VSDepthOutput IN, bool isFrontFace : SV_IsFrontFace) { PSDepthOutput OUT; - // Clip Alpha - float2 baseColorUV = IN.m_uv[MaterialSrg::m_baseColorMapUvIndex]; - float2 opacityUV = IN.m_uv[MaterialSrg::m_opacityMapUvIndex]; - float alpha = SampleAlpha(MaterialSrg::m_baseColorMap, MaterialSrg::m_opacityMap, baseColorUV, opacityUV, MaterialSrg::m_sampler, o_opacity_source); - CheckClipping(alpha, MaterialSrg::m_opacityFactor); - OUT.m_depth = IN.m_position.z; - - if(o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset) + + if(ShouldHandleParallaxInDepthShaders()) { // We support two UV streams, but only a single stream of tangent/bitangent. So for UV[1+] we generated the tangent/bitangent in screen-space. float3 tangents[UvSetCount] = { IN.m_tangent.xyz, float3(0, 0, 0) }; @@ -97,5 +90,12 @@ PSDepthOutput MainPS(VSDepthOutput IN, bool isFrontFace : SV_IsFrontFace) ObjectSrg::GetWorldMatrix(), uvMatrix, uvMatrixInverse, IN.m_uv[MaterialSrg::m_parallaxUvIndex], IN.m_worldPosition, OUT.m_depth); } + + // Clip Alpha + float2 baseColorUV = IN.m_uv[MaterialSrg::m_baseColorMapUvIndex]; + float2 opacityUV = IN.m_uv[MaterialSrg::m_opacityMapUvIndex]; + float alpha = SampleAlpha(MaterialSrg::m_baseColorMap, MaterialSrg::m_opacityMap, baseColorUV, opacityUV, MaterialSrg::m_sampler, o_opacity_source); + CheckClipping(alpha, MaterialSrg::m_opacityFactor); + return OUT; } diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_ForwardPass.azsl b/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_ForwardPass.azsl index 7d50cbf69b..09a16556d6 100644 --- a/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_ForwardPass.azsl +++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_ForwardPass.azsl @@ -26,8 +26,8 @@ COMMON_OPTIONS_NORMAL() COMMON_OPTIONS_CLEAR_COAT() COMMON_OPTIONS_OCCLUSION() COMMON_OPTIONS_EMISSIVE() -COMMON_OPTIONS_PARALLAX() COMMON_OPTIONS_DETAIL_MAPS() +// Note COMMON_OPTIONS_PARALLAX is in StandardPBR_Common.azsli because it's needed by all StandardPBR shaders. // Alpha #include "MaterialInputs/AlphaInput.azsli" @@ -67,7 +67,6 @@ struct VSOutput float2 m_detailUv[UvSetCount] : UV3; }; -#include #include #include @@ -88,8 +87,11 @@ VSOutput EnhancedPbr_ForwardPassVS(VSInput IN) // but we would need to address how it works with the parallax code below that indexes into the m_detailUV array. OUT.m_detailUv[0] = mul(MaterialSrg::m_detailUvMatrix, float3(IN.m_uv0, 1.0)).xy; OUT.m_detailUv[1] = mul(MaterialSrg::m_detailUvMatrix, float3(IN.m_uv1, 1.0)).xy; + + // Shadow coords will be calculated in the pixel shader in this case + bool skipShadowCoords = ShouldHandleParallax() && o_parallax_enablePixelDepthOffset; - VertexHelper(IN, OUT, worldPosition, o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset); + VertexHelper(IN, OUT, worldPosition, skipShadowCoords); return OUT; } @@ -119,7 +121,7 @@ PbrLightingOutput ForwardPassPS_Common(VSOutput IN, bool isFrontFace, out float bool displacementIsClipped = false; // Parallax mapping's non uniform uv transformations break screen space subsurface scattering, disable it when subsurface scatteirng is enabled - if(!o_enableSubsurfaceScattering && o_parallax_feature_enabled && o_useDepthMap) + if(ShouldHandleParallax()) { // GetParallaxInput applies an tangent offset to the UV. We want to apply the same offset to the detailUv (note: this needs to be tested with content) // The math is: offset = newUv - oldUv; detailUv += offset; diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_Shadowmap_WithPS.azsl b/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_Shadowmap_WithPS.azsl index e344886c4b..70b3f51804 100644 --- a/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_Shadowmap_WithPS.azsl +++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_Shadowmap_WithPS.azsl @@ -13,7 +13,6 @@ #include #include #include "EnhancedPBR_Common.azsli" -#include #include #include #include @@ -55,8 +54,8 @@ VertexOutput MainVS(VertexInput IN) // By design, only UV0 is allowed to apply transforms. OUT.m_uv[0] = mul(MaterialSrg::m_uvMatrix, float3(IN.m_uv0, 1.0)).xy; OUT.m_uv[1] = IN.m_uv1; - - if(o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset) + + if(ShouldHandleParallaxInDepthShaders()) { OUT.m_worldPosition = worldPosition.xyz; @@ -76,27 +75,9 @@ PSDepthOutput MainPS(VertexOutput IN, bool isFrontFace : SV_IsFrontFace) { PSDepthOutput OUT; - // Clip Alpha - float2 baseColorUV = IN.m_uv[MaterialSrg::m_baseColorMapUvIndex]; - float2 opacityUV = IN.m_uv[MaterialSrg::m_opacityMapUvIndex]; - float alpha = SampleAlpha(MaterialSrg::m_baseColorMap, MaterialSrg::m_opacityMap, baseColorUV, opacityUV, MaterialSrg::m_sampler, o_opacity_source); - CheckClipping(alpha, MaterialSrg::m_opacityFactor); - OUT.m_depth = IN.m_position.z; - - float3 dirToCamera; - if(ViewSrg::m_projectionMatrix[0].w) - { - // orthographic projection (directional light) - // No view position, use light direction - dirToCamera = ViewSrg::m_viewMatrix[2].xyz; - } - else - { - dirToCamera = ViewSrg::m_worldPosition.xyz - IN.m_worldPosition; - } - - if(o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset) + + if(ShouldHandleParallaxInDepthShaders()) { static const float ShadowMapDepthBias = 0.000001; @@ -114,5 +95,12 @@ PSDepthOutput MainPS(VertexOutput IN, bool isFrontFace : SV_IsFrontFace) OUT.m_depth += ShadowMapDepthBias; } + + // Clip Alpha + float2 baseColorUV = IN.m_uv[MaterialSrg::m_baseColorMapUvIndex]; + float2 opacityUV = IN.m_uv[MaterialSrg::m_opacityMapUvIndex]; + float alpha = SampleAlpha(MaterialSrg::m_baseColorMap, MaterialSrg::m_opacityMap, baseColorUV, opacityUV, MaterialSrg::m_sampler, o_opacity_source); + CheckClipping(alpha, MaterialSrg::m_opacityFactor); + return OUT; } diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR.materialtype b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR.materialtype index 7610a4c9db..780a055c78 100644 --- a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR.materialtype +++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR.materialtype @@ -18,11 +18,6 @@ "displayName": "Parallax Settings", "description": "Properties for configuring the parallax effect, applied to all layers." }, - { - "id": "opacity", - "displayName": "Opacity", - "description": "Properties for configuring the materials transparency." - }, { "id": "uv", "displayName": "UVs", @@ -410,73 +405,6 @@ } } ], - "opacity": [ - { - "id": "mode", - "displayName": "Opacity Mode", - "description": "Opacity mode for this texture.", - "type": "Enum", - "enumValues": [ "Opaque", "Cutout", "Blended" ], - "defaultValue": "Opaque", - "connection": { - "type": "ShaderOption", - "id": "o_opacity_mode" - } - }, - { - "id": "alphaSource", - "displayName": "Alpha Source", - "description": "Source texture of alpha value.", - "type": "Enum", - "enumValues": [ "Packed", "Split", "None" ], - "defaultValue": "Packed", - "connection": { - "type": "ShaderOption", - "id": "o_opacity_source" - } - }, - { - "id": "textureMap", - "displayName": "Texture Map", - "description": "Texture map for defining surface opacity.", - "type": "Image", - "connection": { - "type": "ShaderInput", - "id": "m_opacityMap" - } - }, - { - "id": "textureMapUv", - "displayName": "UV", - "description": "Opacity texture map UV set", - "type": "Enum", - "enumIsUv": true, - "defaultValue": "Tiled", - "connection": { - "type": "ShaderInput", - "id": "m_opacityMapUvIndex" - } - }, - { - "id": "factor", - "displayName": "Factor", - "description": "Factor for cutout threshold and blending", - "type": "Float", - "min": 0.0, - "max": 1.0, - "defaultValue": 0.5, - "connection": { - "type": "ShaderInput", - "id": "m_opacityFactor" - } - }, - { - "id": "doubleSided", - "displayName": "Double-sided", - "description": "Whether to render back-faces or just front-faces.", - "type": "Bool" - } - ], "uv": [ { "id": "center", @@ -2851,16 +2779,7 @@ { "file": "Shaders/MotionVector/SkinnedMeshMotionVector.shader", "tag": "SkinnedMeshMotionVector" - }, - // Used by the light culling system to produce accurate depth bounds for this object when it uses blended transparency - { - "file": "Shaders/Depth/DepthPassTransparentMin.shader", - "tag": "DepthPassTransparentMin" - }, - { - "file": "Shaders/Depth/DepthPassTransparentMax.shader", - "tag": "DepthPassTransparentMax" - } + } ], "functors": [ //############################################################################################## @@ -2885,7 +2804,7 @@ { "type": "Lua", "args": { - "file": "StandardPBR_ShaderEnable.lua" + "file": "StandardMultilayerPBR_ShaderEnable.lua" } }, { @@ -2925,27 +2844,6 @@ "file": "StandardPBR_SubsurfaceState.lua" } }, - { - "type": "Lua", - "args": { - "file": "StandardPBR_HandleOpacityDoubleSided.lua" - } - }, - { - "type": "OverrideDrawList", - "args": { - "triggerProperty": "opacity.mode", - "triggerValue": "Blended", - "shaderIndex": 1, - "drawList": "transparent" - } - }, - { - "type": "Lua", - "args": { - "file": "StandardPBR_HandleOpacityMode.lua" - } - }, //############################################################################################## // Layer 1 Functors //############################################################################################## diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_Common.azsli b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_Common.azsli index db3ec45e0c..93cf9fdb7c 100644 --- a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_Common.azsli +++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_Common.azsli @@ -14,6 +14,7 @@ #include #include +#include #include "MaterialInputs/BaseColorInput.azsli" #include "MaterialInputs/RoughnessInput.azsli" @@ -26,6 +27,8 @@ #include "MaterialInputs/ParallaxInput.azsli" #include "MaterialInputs/UvSetCount.azsli" +// ------ ShaderResourceGroup ---------------------------------------- + #define DEFINE_LAYER_SRG_INPUTS(prefix) \ COMMON_SRG_INPUTS_BASE_COLOR(prefix) \ COMMON_SRG_INPUTS_ROUGHNESS(prefix) \ @@ -64,10 +67,6 @@ ShaderResourceGroup MaterialSrg : SRG_PerMaterial float3x3 m_uvMatrixInverse; float4 m_pad5; // [GFX TODO][ATOM-14595] This is a workaround for a data stomping bug. Remove once it's fixed. - float m_opacityFactor; - Texture2D m_opacityMap; - uint m_opacityMapUvIndex; - Sampler m_sampler { AddressU = Wrap; @@ -109,6 +108,8 @@ ShaderResourceGroup MaterialSrg : SRG_PerMaterial uint m_transmissionThicknessMapUvIndex; } +// ------ Shader Options ---------------------------------------- + enum class DebugDrawMode { None, BlendMaskValues, DepthMaps }; option DebugDrawMode o_debugDrawMode; @@ -121,6 +122,8 @@ option BlendMaskSource o_blendSource; // [GFX TODO][ATOM-14475]: Come up with a more elegant way to associate the isBound flag with the input stream. option bool o_blendMask_isBound; +// ------ Blend Utilities ---------------------------------------- + //! Returns the BlendMaskSource that will actually be used when rendering (not necessarily the same BlendMaskSource specified by the user) BlendMaskSource GetFinalBlendMaskSource() { @@ -181,6 +184,22 @@ float3 BlendLayers(float3 layer1, float3 layer2, float3 layer3, float3 blendMask return layer1 * blendMaskValues.r + layer2 * blendMaskValues.g + layer3 * blendMaskValues.b; } +// ------ Parallax Utilities ---------------------------------------- + +bool ShouldHandleParallax() +{ + // Parallax mapping's non uniform uv transformations break screen space subsurface scattering, disable it when subsurface scattering is enabled. + // Also, all the debug draw modes avoid parallax (they early-return before parallax code actually) so you can see exactly where the various maps appear on the surface UV space. + return !o_enableSubsurfaceScattering && o_parallax_feature_enabled && o_debugDrawMode == DebugDrawMode::None; +} + +bool ShouldHandleParallaxInDepthShaders() +{ + // The depth pass shaders need to calculate parallax when the result could affect the depth buffer (or when + // parallax could affect texel clipping but we don't have alpha/clipping support in multilayer PBR). + return ShouldHandleParallax() && o_parallax_enablePixelDepthOffset; +} + // These static values are used to pass extra data to the GetDepth callback function during the parallax depth search. static float3 s_blendMaskFromVertexStream; diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_DepthPass_WithPS.azsl b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_DepthPass_WithPS.azsl index 8e25292e9c..bc8045f412 100644 --- a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_DepthPass_WithPS.azsl +++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_DepthPass_WithPS.azsl @@ -11,12 +11,10 @@ */ #include -#include #include #include #include -#include "MaterialInputs/AlphaInput.azsli" #include "MaterialInputs/ParallaxInput.azsli" @@ -72,7 +70,7 @@ VSDepthOutput MainVS(VSInput IN) OUT.m_uv[0] = mul(MaterialSrg::m_uvMatrix, float3(IN.m_uv0, 1.0)).xy; OUT.m_uv[1] = IN.m_uv1; - if(o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset) + if(ShouldHandleParallaxInDepthShaders()) { OUT.m_worldPosition = worldPosition.xyz; @@ -101,18 +99,9 @@ PSDepthOutput MainPS(VSDepthOutput IN, bool isFrontFace : SV_IsFrontFace) { PSDepthOutput OUT; - // Alpha - float2 layer1_baseColorUV = IN.m_uv[MaterialSrg::m_layer1_m_baseColorMapUvIndex]; - float2 layer2_baseColorUV = IN.m_uv[MaterialSrg::m_layer2_m_baseColorMapUvIndex]; - float2 opacityUV = IN.m_uv[MaterialSrg::m_opacityMapUvIndex]; - // [GFX TODO][ATOM-14589] Figure out how to deal with opacity, instead of just hard-coding to layer1 - float alpha = SampleAlpha(MaterialSrg::m_layer1_m_baseColorMap, MaterialSrg::m_opacityMap, layer1_baseColorUV, opacityUV, MaterialSrg::m_sampler, o_opacity_source); - - CheckClipping(alpha, MaterialSrg::m_opacityFactor); - OUT.m_depth = IN.m_position.z; - if(o_debugDrawMode == DebugDrawMode::None && o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset) + if(ShouldHandleParallaxInDepthShaders()) { // We support two UV streams, but only a single stream of tangent/bitangent. So for UV[1+] we generated the tangent/bitangent in screen-space. float3 tangents[UvSetCount] = { IN.m_tangent.xyz, float3(0, 0, 0) }; diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_ForwardPass.azsl b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_ForwardPass.azsl index 05a40d0f9d..3f49152c1c 100644 --- a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_ForwardPass.azsl +++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_ForwardPass.azsl @@ -42,7 +42,6 @@ DEFINE_LAYER_OPTIONS(o_layer1_) DEFINE_LAYER_OPTIONS(o_layer2_) DEFINE_LAYER_OPTIONS(o_layer3_) -#include "MaterialInputs/AlphaInput.azsli" #include "MaterialInputs/SubsurfaceInput.azsli" #include "MaterialInputs/TransmissionInput.azsli" #include "StandardMultilayerPBR_Common.azsli" @@ -83,7 +82,7 @@ struct VSOutput float3 m_blendMask : UV7; }; -#include +#include // TODO: Remove this after OpacityMode is removed from LightingModel #include #include @@ -107,9 +106,8 @@ VSOutput ForwardPassVS(VSInput IN) OUT.m_blendMask = float3(1,1,1); } - // We can skip per-vertex shadow coords when parallax is enabled because we need to calculate per-pixel shadow coords anyway. - // We cannot skip shadow coords when o_debugDrawMode is on because some debug draw modes return before parallax. - bool skipShadowCoords = o_debugDrawMode == DebugDrawMode::None && o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset; + // Shadow coords will be calculated in the pixel shader in this case + bool skipShadowCoords = ShouldHandleParallax() && o_parallax_enablePixelDepthOffset; VertexHelper(IN, OUT, worldPosition, skipShadowCoords); return OUT; @@ -157,7 +155,7 @@ PbrLightingOutput ForwardPassPS_Common(VSOutput IN, bool isFrontFace, out float // ------- Parallax ------- // Parallax mapping's non uniform uv transformations break screen space subsurface scattering, disable it when subsurface scatteirng is enabled - if(!o_enableSubsurfaceScattering && o_parallax_feature_enabled) + if(ShouldHandleParallax()) { GetDepth_Setup(IN.m_blendMask); @@ -199,15 +197,6 @@ PbrLightingOutput ForwardPassPS_Common(VSOutput IN, bool isFrontFace, out float // Now that any parallax has been calculated, we calculate the blend factors for any layers that are impacted by the parallax. float3 blendMaskValues = GetBlendMaskValues(IN.m_uv[MaterialSrg::m_blendMaskUvIndex], IN.m_blendMask); - // ------- Alpha & Clip ------- - - float2 layer1_baseColorUv = uvLayer1[MaterialSrg::m_layer1_m_baseColorMapUvIndex]; - float2 layer2_baseColorUv = uvLayer2[MaterialSrg::m_layer2_m_baseColorMapUvIndex]; - float2 layer3_baseColorUv = uvLayer3[MaterialSrg::m_layer3_m_baseColorMapUvIndex]; - float2 opacityUv = IN.m_uv[MaterialSrg::m_opacityMapUvIndex]; - // [GFX TODO][ATOM-14589] Figure out how to deal with opacity, instead of just hard-coding to layer1 - float alpha = GetAlphaInputAndClip(MaterialSrg::m_layer1_m_baseColorMap, MaterialSrg::m_opacityMap, layer1_baseColorUv, opacityUv, MaterialSrg::m_sampler, MaterialSrg::m_opacityFactor, o_opacity_source); - // ------- Normal ------- float3 layer1_normalFactor = MaterialSrg::m_layer1_m_normalFactor * blendMaskValues.r; @@ -226,6 +215,10 @@ PbrLightingOutput ForwardPassPS_Common(VSOutput IN, bool isFrontFace, out float float3 normalWS = normalize(TangentSpaceToWorld(normalTS, IN.m_normal, tangents[MaterialSrg::m_parallaxUvIndex], bitangents[MaterialSrg::m_parallaxUvIndex])); // ------- Base Color ------- + + float2 layer1_baseColorUv = uvLayer1[MaterialSrg::m_layer1_m_baseColorMapUvIndex]; + float2 layer2_baseColorUv = uvLayer2[MaterialSrg::m_layer2_m_baseColorMapUvIndex]; + float2 layer3_baseColorUv = uvLayer3[MaterialSrg::m_layer3_m_baseColorMapUvIndex]; float3 layer1_sampledColor = GetBaseColorInput(MaterialSrg::m_layer1_m_baseColorMap, MaterialSrg::m_sampler, layer1_baseColorUv, MaterialSrg::m_layer1_m_baseColor.rgb, o_layer1_o_baseColor_useTexture); float3 layer2_sampledColor = GetBaseColorInput(MaterialSrg::m_layer2_m_baseColorMap, MaterialSrg::m_sampler, layer2_baseColorUv, MaterialSrg::m_layer2_m_baseColor.rgb, o_layer2_o_baseColor_useTexture); @@ -352,34 +345,18 @@ PbrLightingOutput ForwardPassPS_Common(VSOutput IN, bool isFrontFace, out float // ------- Lighting Calculation ------- const float2 anisotropy = 0.0; // Does not affect calculations unless 'o_enableAnisotropy' is enabled + const float alpha = 1.0; PbrLightingOutput lightingOutput = PbrLighting(IN, baseColor, metallic, roughness, specularF0Factor, normalWS, tangents[0], bitangents[0], anisotropy, - emissive, diffuseAmbientOcclusion, specularOcclusion, transmissionTintThickness, MaterialSrg::m_transmissionParams, clearCoatFactor, clearCoatRoughness, clearCoatNormal, alpha, o_opacity_mode); + emissive, diffuseAmbientOcclusion, specularOcclusion, transmissionTintThickness, MaterialSrg::m_transmissionParams, clearCoatFactor, clearCoatRoughness, clearCoatNormal, alpha, OpacityMode::Opaque); - // ------- Opacity ------- - - if (o_opacity_mode == OpacityMode::Blended) - { - // [GFX_TODO ATOM-13187] PbrLighting shouldn't be writing directly to render targets. It's confusing when - // specular is being added to diffuse just because we're calling render target 0 "diffuse". - - // For blended mode, we do (dest * alpha) + (source * 1.0). This allows the specular - // to be added on top of the diffuse, but then the diffuse must be pre-multiplied. - // It's done this way because surface transparency doesn't really change specular response (eg, glass). - lightingOutput.m_diffuseColor.rgb *= lightingOutput.m_diffuseColor.w; // pre-multiply diffuse - lightingOutput.m_diffuseColor.rgb += lightingOutput.m_specularColor.rgb; // add specular - } - else - { - // Pack factor and quality, drawback: because of precision limit of float16 cannot represent exact 1, maximum representable value is 0.9961 - uint factorAndQuality = dot(round(float2(saturate(surfaceScatteringFactor), MaterialSrg::m_subsurfaceScatteringQuality) * 255), float2(256, 1)); - lightingOutput.m_diffuseColor.w = factorAndQuality * (o_enableSubsurfaceScattering ? 1.0 : -1.0); - lightingOutput.m_scatterDistance = MaterialSrg::m_scatterDistance; - } + // Pack factor and quality, drawback: because of precision limit of float16 cannot represent exact 1, maximum representable value is 0.9961 + uint factorAndQuality = dot(round(float2(saturate(surfaceScatteringFactor), MaterialSrg::m_subsurfaceScatteringQuality) * 255), float2(256, 1)); + lightingOutput.m_diffuseColor.w = factorAndQuality * (o_enableSubsurfaceScattering ? 1.0 : -1.0); + lightingOutput.m_scatterDistance = MaterialSrg::m_scatterDistance; - return lightingOutput; } diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_ShaderEnable.lua b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_ShaderEnable.lua new file mode 100644 index 0000000000..69df610ab2 --- /dev/null +++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_ShaderEnable.lua @@ -0,0 +1,39 @@ +-------------------------------------------------------------------------------------- +-- +-- All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or +-- its licensors. +-- +-- For complete copyright and license terms please see the LICENSE at the root of this +-- distribution (the "License"). All use of this software is governed by the License, +-- or, if provided, by the license below or the license accompanying this file. Do not +-- remove or modify any license notices. This file is distributed on an "AS IS" BASIS, +-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +-- +-- +---------------------------------------------------------------------------------------------------- + +function GetMaterialPropertyDependencies() + return {"parallax.enable", "parallax.pdo"} +end + +function Process(context) + local parallaxEnabled = context:GetMaterialPropertyValue_bool("parallax.enable") + local parallaxPdoEnabled = context:GetMaterialPropertyValue_bool("parallax.pdo") + + local depthPass = context:GetShaderByTag("DepthPass") + local shadowMap = context:GetShaderByTag("Shadowmap") + local forwardPassEDS = context:GetShaderByTag("ForwardPass_EDS") + local depthPassWithPS = context:GetShaderByTag("DepthPass_WithPS") + local shadowMapWitPS = context:GetShaderByTag("Shadowmap_WithPS") + local forwardPass = context:GetShaderByTag("ForwardPass") + + local shadingAffectsDepth = parallaxEnabled and parallaxPdoEnabled; + + depthPass:SetEnabled(not shadingAffectsDepth) + shadowMap:SetEnabled(not shadingAffectsDepth) + forwardPassEDS:SetEnabled(not shadingAffectsDepth) + + depthPassWithPS:SetEnabled(shadingAffectsDepth) + shadowMapWitPS:SetEnabled(shadingAffectsDepth) + forwardPass:SetEnabled(shadingAffectsDepth) +end diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_Shadowmap_WithPS.azsl b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_Shadowmap_WithPS.azsl index 0c9c186a11..6fa721ef47 100644 --- a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_Shadowmap_WithPS.azsl +++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_Shadowmap_WithPS.azsl @@ -12,12 +12,10 @@ #include #include -#include #include #include #include -#include "MaterialInputs/AlphaInput.azsli" #include "MaterialInputs/ParallaxInput.azsli" #include "MaterialInputs/ParallaxInput.azsli" @@ -71,7 +69,7 @@ VertexOutput MainVS(VertexInput IN) OUT.m_uv[0] = mul(MaterialSrg::m_uvMatrix, float3(IN.m_uv0, 1.0)).xy; OUT.m_uv[1] = IN.m_uv1; - if(o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset) + if(ShouldHandleParallaxInDepthShaders()) { OUT.m_worldPosition = worldPosition.xyz; @@ -100,18 +98,9 @@ PSDepthOutput MainPS(VertexOutput IN, bool isFrontFace : SV_IsFrontFace) { PSDepthOutput OUT; - // Alpha - float2 layer1_baseColorUV = IN.m_uv[MaterialSrg::m_layer1_m_baseColorMapUvIndex]; - float2 layer2_baseColorUV = IN.m_uv[MaterialSrg::m_layer2_m_baseColorMapUvIndex]; - float2 opacityUV = IN.m_uv[MaterialSrg::m_opacityMapUvIndex]; - // [GFX TODO][ATOM-14589] Figure out how to deal with opacity, instead of just hard-coding to layer1 - float alpha = SampleAlpha(MaterialSrg::m_layer1_m_baseColorMap, MaterialSrg::m_opacityMap, layer1_baseColorUV, opacityUV, MaterialSrg::m_sampler, o_opacity_source); - - CheckClipping(alpha, MaterialSrg::m_opacityFactor); - OUT.m_depth = IN.m_position.z; - if(o_debugDrawMode == DebugDrawMode::None && o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset) + if(ShouldHandleParallaxInDepthShaders()) { // We support two UV streams, but only a single stream of tangent/bitangent. So for UV[1+] we generated the tangent/bitangent in screen-space. float3 tangents[UvSetCount] = { IN.m_tangent.xyz, float3(0, 0, 0) }; @@ -132,6 +121,6 @@ PSDepthOutput MainPS(VertexOutput IN, bool isFrontFace : SV_IsFrontFace) OUT.m_depth = depth; } - + return OUT; } diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_Common.azsli b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_Common.azsli index 70137a88c1..ee1533cf16 100644 --- a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_Common.azsli +++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_Common.azsli @@ -14,6 +14,8 @@ #include #include +#include +#include #include "MaterialInputs/BaseColorInput.azsli" #include "MaterialInputs/RoughnessInput.azsli" @@ -97,3 +99,17 @@ float GetDepth(float2 uv, float2 uv_ddx, float2 uv_ddy) return SampleDepthOrHeightMap(MaterialSrg::m_depthInverted, MaterialSrg::m_depthMap, MaterialSrg::m_sampler, uv, uv_ddx, uv_ddy); } +COMMON_OPTIONS_PARALLAX() + +bool ShouldHandleParallax() +{ + // Parallax mapping's non uniform uv transformations break screen space subsurface scattering, disable it when subsurface scattering is enabled. + return !o_enableSubsurfaceScattering && o_parallax_feature_enabled && o_useDepthMap; +} + +bool ShouldHandleParallaxInDepthShaders() +{ + // The depth pass shaders need to calculate parallax when the result could affect the depth buffer, or when + // parallax could affect texel clipping. + return ShouldHandleParallax() && (o_parallax_enablePixelDepthOffset || o_opacity_mode == OpacityMode::Cutout); +} diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_DepthPass_WithPS.azsl b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_DepthPass_WithPS.azsl index 3c04e9b391..5d0498dbe9 100644 --- a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_DepthPass_WithPS.azsl +++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_DepthPass_WithPS.azsl @@ -11,7 +11,6 @@ */ #include -#include #include "./StandardPBR_Common.azsli" #include #include @@ -57,7 +56,7 @@ VSDepthOutput MainVS(VSInput IN) OUT.m_uv[0] = mul(MaterialSrg::m_uvMatrix, float3(IN.m_uv0, 1.0)).xy; OUT.m_uv[1] = IN.m_uv1; - if(o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset) + if(ShouldHandleParallaxInDepthShaders()) { OUT.m_worldPosition = worldPosition.xyz; @@ -76,16 +75,9 @@ PSDepthOutput MainPS(VSDepthOutput IN, bool isFrontFace : SV_IsFrontFace) { PSDepthOutput OUT; - // Alpha - float2 baseColorUV = IN.m_uv[MaterialSrg::m_baseColorMapUvIndex]; - float2 opacityUV = IN.m_uv[MaterialSrg::m_opacityMapUvIndex]; - float alpha = SampleAlpha(MaterialSrg::m_baseColorMap, MaterialSrg::m_opacityMap, baseColorUV, opacityUV, MaterialSrg::m_sampler, o_opacity_source); - - CheckClipping(alpha, MaterialSrg::m_opacityFactor); - OUT.m_depth = IN.m_position.z; - if(o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset) + if(ShouldHandleParallaxInDepthShaders()) { // We support two UV streams, but only a single stream of tangent/bitangent. So for UV[1+] we generated the tangent/bitangent in screen-space. float3 tangents[UvSetCount] = { IN.m_tangent.xyz, float3(0, 0, 0) }; @@ -99,7 +91,13 @@ PSDepthOutput MainPS(VSDepthOutput IN, bool isFrontFace : SV_IsFrontFace) ObjectSrg::GetWorldMatrix(), uvMatrix, uvMatrixInverse, IN.m_uv[MaterialSrg::m_parallaxUvIndex], IN.m_worldPosition, OUT.m_depth); } + + // Alpha + float2 baseColorUV = IN.m_uv[MaterialSrg::m_baseColorMapUvIndex]; + float2 opacityUV = IN.m_uv[MaterialSrg::m_opacityMapUvIndex]; + float alpha = SampleAlpha(MaterialSrg::m_baseColorMap, MaterialSrg::m_opacityMap, baseColorUV, opacityUV, MaterialSrg::m_sampler, o_opacity_source); + CheckClipping(alpha, MaterialSrg::m_opacityFactor); return OUT; } diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_ForwardPass.azsl b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_ForwardPass.azsl index d55b865a27..4d12eb181d 100644 --- a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_ForwardPass.azsl +++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_ForwardPass.azsl @@ -26,7 +26,7 @@ COMMON_OPTIONS_NORMAL() COMMON_OPTIONS_CLEAR_COAT() COMMON_OPTIONS_OCCLUSION() COMMON_OPTIONS_EMISSIVE() -COMMON_OPTIONS_PARALLAX() +// Note COMMON_OPTIONS_PARALLAX is in StandardPBR_Common.azsli because it's needed by all StandardPBR shaders. // Alpha #include "MaterialInputs/AlphaInput.azsli" @@ -66,7 +66,6 @@ struct VSOutput float2 m_uv[UvSetCount] : UV1; }; -#include #include #include @@ -80,7 +79,10 @@ VSOutput StandardPbr_ForwardPassVS(VSInput IN) OUT.m_uv[0] = mul(MaterialSrg::m_uvMatrix, float3(IN.m_uv0, 1.0)).xy; OUT.m_uv[1] = IN.m_uv1; - VertexHelper(IN, OUT, worldPosition, o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset); + // Shadow coords will be calculated in the pixel shader in this case + bool skipShadowCoords = ShouldHandleParallax() && o_parallax_enablePixelDepthOffset; + + VertexHelper(IN, OUT, worldPosition, skipShadowCoords); return OUT; } @@ -110,7 +112,7 @@ PbrLightingOutput ForwardPassPS_Common(VSOutput IN, bool isFrontFace, out float bool displacementIsClipped = false; // Parallax mapping's non uniform uv transformations break screen space subsurface scattering, disable it when subsurface scatteirng is enabled - if(!o_enableSubsurfaceScattering && o_parallax_feature_enabled && o_useDepthMap) + if(ShouldHandleParallax()) { float3x3 uvMatrix = MaterialSrg::m_parallaxUvIndex == 0 ? MaterialSrg::m_uvMatrix : CreateIdentity3x3(); diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_Shadowmap_WithPS.azsl b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_Shadowmap_WithPS.azsl index 8f33b4cec6..cad951b5b5 100644 --- a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_Shadowmap_WithPS.azsl +++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_Shadowmap_WithPS.azsl @@ -13,7 +13,6 @@ #include #include #include "StandardPBR_Common.azsli" -#include #include #include #include @@ -57,7 +56,7 @@ VertexOutput MainVS(VertexInput IN) OUT.m_uv[0] = mul(MaterialSrg::m_uvMatrix, float3(IN.m_uv0, 1.0)).xy; OUT.m_uv[1] = IN.m_uv1; - if(o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset) + if(ShouldHandleParallaxInDepthShaders()) { OUT.m_worldPosition = worldPosition.xyz; @@ -77,28 +76,9 @@ PSDepthOutput MainPS(VertexOutput IN, bool isFrontFace : SV_IsFrontFace) { PSDepthOutput OUT; - // Alpha - float2 baseColorUV = IN.m_uv[MaterialSrg::m_baseColorMapUvIndex]; - float2 opacityUV = IN.m_uv[MaterialSrg::m_opacityMapUvIndex]; - float alpha = SampleAlpha(MaterialSrg::m_baseColorMap, MaterialSrg::m_opacityMap, baseColorUV, opacityUV, MaterialSrg::m_sampler, o_opacity_source); - - CheckClipping(alpha, MaterialSrg::m_opacityFactor); - OUT.m_depth = IN.m_position.z; - float3 dirToCamera; - if(ViewSrg::m_projectionMatrix[0].w) - { - // orthographic projection (directional light) - // No view position, use light direction - dirToCamera = ViewSrg::m_viewMatrix[2].xyz; - } - else - { - dirToCamera = ViewSrg::m_worldPosition.xyz - IN.m_worldPosition; - } - - if(o_parallax_feature_enabled && o_parallax_enablePixelDepthOffset) + if(ShouldHandleParallaxInDepthShaders()) { static const float ShadowMapDepthBias = 0.000001; @@ -116,5 +96,13 @@ PSDepthOutput MainPS(VertexOutput IN, bool isFrontFace : SV_IsFrontFace) OUT.m_depth += ShadowMapDepthBias; } + + // Alpha + float2 baseColorUV = IN.m_uv[MaterialSrg::m_baseColorMapUvIndex]; + float2 opacityUV = IN.m_uv[MaterialSrg::m_opacityMapUvIndex]; + float alpha = SampleAlpha(MaterialSrg::m_baseColorMap, MaterialSrg::m_opacityMap, baseColorUV, opacityUV, MaterialSrg::m_sampler, o_opacity_source); + + CheckClipping(alpha, MaterialSrg::m_opacityFactor); + return OUT; }