mirror of
https://github.com/FriendshipIsEpic/FiE-Game.git
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59 lines
1.8 KiB
HLSL
59 lines
1.8 KiB
HLSL
// Amplify Motion - Full-scene Motion Blur for Unity Pro
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// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
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#ifndef AMPLIFY_MOTION_SHARED_INCLUDED
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#define AMPLIFY_MOTION_SHARED_INCLUDED
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#include "UnityCG.cginc"
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sampler2D _CameraDepthTexture;
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float4x4 _AM_MATRIX_PREV_MVP;
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float4 _AM_ZBUFFER_PARAMS;
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float _AM_OBJECT_ID;
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float _AM_MOTION_SCALE;
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float _AM_MIN_VELOCITY;
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float _AM_MAX_VELOCITY;
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float _AM_RCP_TOTAL_VELOCITY;
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sampler2D _AM_PREV_VERTEX_TEX;
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sampler2D _AM_CURR_VERTEX_TEX;
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float4 _AM_VERTEX_TEXEL_SIZE;
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float4 _AM_VERTEX_TEXEL_HALFSIZE;
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inline bool DepthTest( float4 screen_pos )
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{
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const float epsilon = 0.001f;
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float3 uv = screen_pos.xyz / screen_pos.w;
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float behind = SAMPLE_DEPTH_TEXTURE_PROJ( _CameraDepthTexture, screen_pos );
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#if defined( SHADER_API_OPENGL ) || defined( SHADER_API_GLES ) || defined( SHADER_API_GLES3 )
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float front = uv.z * 0.5 + 0.5;
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#else
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float front = uv.z;
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#endif
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return ( behind >= front - epsilon );
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}
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inline half4 SolidMotionVector( half4 pos_prev, half4 pos_curr, half obj_id )
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{
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pos_prev = pos_prev / pos_prev.w;
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pos_curr = pos_curr / pos_curr.w;
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half4 motion = ( pos_curr - pos_prev ) * _AM_MOTION_SCALE;
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motion.z = length( motion.xy );
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motion.xy = ( motion.xy / motion.z ) * 0.5f + 0.5f;
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motion.z = ( motion.z < _AM_MIN_VELOCITY ) ? 0 : motion.z;
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motion.z = max( min( motion.z, _AM_MAX_VELOCITY ) - _AM_MIN_VELOCITY, 0 ) * _AM_RCP_TOTAL_VELOCITY;
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return half4( motion.xyz, obj_id );
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}
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inline half4 DeformableMotionVector( half3 motion, half obj_id )
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{
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motion.z = length( motion.xy );
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motion.xy = ( motion.xy / motion.z ) * 0.5f + 0.5f;
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motion.z = ( motion.z < _AM_MIN_VELOCITY ) ? 0 : motion.z;
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motion.z = max( min( motion.z, _AM_MAX_VELOCITY ) - _AM_MIN_VELOCITY, 0 ) * _AM_RCP_TOTAL_VELOCITY;
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return half4( motion.xyz, obj_id );
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}
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#endif
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