178 lines
6.0 KiB
HLSL
178 lines
6.0 KiB
HLSL
//////////////////////////////////////////////////////
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// MK Toon ShadowCaster Program //
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// //
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// Created by Michael Kremmel //
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// www.michaelkremmel.de //
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// Copyright © 2020 All rights reserved. //
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//////////////////////////////////////////////////////
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#ifndef MK_TOON_SHADOWCASTER
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#define MK_TOON_SHADOWCASTER
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#if defined(MK_URP)
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#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/CommonMaterial.hlsl"
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#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Shadows.hlsl"
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#elif defined(MK_LWRP)
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#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/CommonMaterial.hlsl"
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#include "Packages/com.unity.render-pipelines.lightweight/ShaderLibrary/Shadows.hlsl"
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#endif
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#include "../Surface.hlsl"
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#include "Data.hlsl"
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//This should be excluded from the CBuffer
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uniform float3 _LightDirection;
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uniform float3 _LightPosition;
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/////////////////////////////////////////////////////////////////////////////////////////////
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// VERTEX SHADER
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/////////////////////////////////////////////////////////////////////////////////////////////
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void ShadowCasterVert
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(
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VertexInputShadowCaster VERTEX_INPUT,
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out VertexOutputShadowCaster vertexOutput
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,out float4 svPositionClip : SV_POSITION
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)
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{
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UNITY_SETUP_INSTANCE_ID(VERTEX_INPUT);
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INITIALIZE_STRUCT(VertexOutputShadowCaster, vertexOutput);
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UNITY_TRANSFER_INSTANCE_ID(VERTEX_INPUT, vertexOutput);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(vertexOutput);
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#ifdef MK_VERTEX_ANIMATION
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VERTEX_INPUT.vertex.xyz = VertexAnimation(PASS_VERTEX_ANIMATION_ARG(_VertexAnimationMap, PASS_VERTEX_ANIMATION_UV(VERTEX_INPUT.texcoord0.xy), _VertexAnimationIntensity, _VertexAnimationFrequency.xyz, VERTEX_INPUT.vertex.xyz, VERTEX_INPUT.normal));
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#endif
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//CurvedWorldSupport
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//CurvedWorldVertexTransformations
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/*
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Replace on the Vertex Transformation code the following:
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- v.vertex => VERTEX_INPUT.vertex
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- v.normal => VERTEX_INPUT.normal
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- v.tangent => VERTEX_INPUT.tangent
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*/
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//
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#ifdef MK_VERTEX_COLOR_REQUIRED
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vertexOutput.color = VERTEX_INPUT.color;
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#endif
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#if defined(MK_TCM)
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vertexOutput.uv = VERTEX_INPUT.texcoord0.xy * _AlbedoMap_ST.xy + _AlbedoMap_ST.zw;
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#endif
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#if defined(MK_URP) || defined(MK_LWRP)
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half3 normalWorld = ComputeNormalWorld(VERTEX_INPUT.normal);
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#endif
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#ifdef MK_PARALLAX
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vertexOutput.viewTangent = ComputeViewTangent(ComputeViewObject(VERTEX_INPUT.vertex.xyz), VERTEX_INPUT.normal, VERTEX_INPUT.tangent.xyz, cross(VERTEX_INPUT.normal, VERTEX_INPUT.tangent.xyz) * VERTEX_INPUT.tangent.w * unity_WorldTransformParams.w);
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#endif
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#if defined(MK_URP)
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float3 positionWorld = mul(MATRIX_M, float4(VERTEX_INPUT.vertex.xyz, 1.0)).xyz;
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half3 lightDirection;
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#if defined(_CASTING_PUNCTUAL_LIGHT_SHADOW) && defined(MK_URP_2020_2_Or_Newer)
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lightDirection = MKSafeNormalize(_LightPosition - positionWorld);
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#else
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lightDirection = _LightDirection;
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#endif
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svPositionClip = mul(MATRIX_VP, float4(ApplyShadowBias(positionWorld, normalWorld, lightDirection), 1.0));
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#if UNITY_REVERSED_Z
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svPositionClip.z = min(svPositionClip.z, UNITY_NEAR_CLIP_VALUE);
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#else
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svPositionClip.z = max(svPositionClip.z, UNITY_NEAR_CLIP_VALUE);
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#endif
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#elif defined(MK_LWRP)
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float3 positionWorld = mul(MATRIX_M, float4(VERTEX_INPUT.vertex.xyz, 1.0)).xyz;
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float invNdotL = 1.0 - saturate(dot(_LightDirection, normalWorld));
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float scale = invNdotL * _ShadowBias.y;
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positionWorld = _LightDirection * _ShadowBias.xxx + positionWorld;
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positionWorld = normalWorld * scale.xxx + positionWorld;
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svPositionClip = mul(MATRIX_VP, float4(positionWorld, 1));
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#if UNITY_REVERSED_Z
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svPositionClip.z = min(svPositionClip.z, UNITY_NEAR_CLIP_VALUE);
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#else
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svPositionClip.z = max(svPositionClip.z, UNITY_NEAR_CLIP_VALUE);
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#endif
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#else
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TRANSFER_SHADOW_CASTER_NOPOS(vertexOutput, svPositionClip)
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#endif
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#ifdef MK_BARYCENTRIC_POS_CLIP
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vertexOutput.positionClip = svPositionClip;
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#endif
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#ifdef MK_POS_NULL_CLIP
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vertexOutput.nullClip = ComputeObjectToClipSpace(0);
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#endif
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}
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/////////////////////////////////////////////////////////////////////////////////////////////
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// FRAGMENT SHADER
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/////////////////////////////////////////////////////////////////////////////////////////////
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half4 ShadowCasterFrag
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(
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VertexOutputShadowCaster vertexOutput,
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float4 svPositionClip : SV_POSITION
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) : SV_Target
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{
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UNITY_SETUP_INSTANCE_ID(vertexOutput);
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(vertexOutput);
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#ifdef MK_LOD_FADE_CROSSFADE
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LODFadeCrossFade(svPositionClip);
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#endif
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MKSurfaceData surfaceData = ComputeSurfaceData
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(
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svPositionClip,
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PASS_POSITION_WORLD_ARG(0)
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PASS_FOG_FACTOR_WORLD_ARG(0)
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PASS_BASE_UV_ARG(float4(vertexOutput.uv.xy, 0, 0))
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PASS_LIGHTMAP_UV_ARG(0)
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PASS_VERTEX_COLOR_ARG(vertexOutput.color)
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PASS_NORMAL_WORLD_ARG(1)
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PASS_VERTEX_LIGHTING_ARG(0)
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PASS_TANGENT_WORLD_ARG(1)
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PASS_VIEW_TANGENT_ARG(vertexOutput.viewTangent)
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PASS_BITANGENT_WORLD_ARG(1)
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PASS_BARYCENTRIC_POSITION_CLIP_ARG(vertexOutput.positionClip)
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PASS_NULL_CLIP_ARG(vertexOutput.nullClip)
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PASS_FLIPBOOK_UV_ARG(0)
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);
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Surface surface = InitSurface(surfaceData, PASS_SAMPLER_2D(_AlbedoMap), _AlbedoColor, float4(0,0,0,1));
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#if defined(MK_URP) || defined(MK_LWRP)
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return 0;
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#else
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#ifdef MK_SURFACE_TYPE_TRANSPARENT
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#ifdef MK_TOON_DITHER_MASK
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/*
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#ifdef LOD_FADE_CROSSFADE
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#define _LOD_FADE_ON_ALPHA
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alpha *= unity_LODFade.y;
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#endif
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*/
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// dither mask alpha blending
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half alphaRef = tex3D(_DitherMaskLOD, float3(svPositionClip.xy*0.25,surface.alpha*0.9375)).a;
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clip(alphaRef - 0.01);
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#else
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clip(surface.alpha - 0.5);
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#endif
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/*
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//Disabled for now
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#ifdef LOD_FADE_CROSSFADE
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#ifdef _LOD_FADE_ON_ALPHA
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#undef _LOD_FADE_ON_ALPHA
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#else
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UnityApplyDitherCrossFade(vpos.xy);
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#endif
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#endif
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*/
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#endif
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SHADOW_CASTER_FRAGMENT(vertexOutput)
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#endif
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}
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#endif |