39 lines
1.0 KiB
C
39 lines
1.0 KiB
C
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#ifndef MBLUR_H
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#define MBLUR_H
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#ifndef USE_MBLUR
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float3 mblur (float2 UV, float3 pos, float3 c_original) { return c_original; }
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#else
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#include "common.h"
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#include "slb_motion_blur.h"
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////////////////////////////////////////
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float4x4 m_current; //Current projection matrix
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float4x4 m_previous; //Previous projection matrix
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float2 m_blur;
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////////////////////////////////////////
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float3 mblur(float2 UV, float3 pos, float3 img)
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{
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//Fix sky ghosting caused by infinite depth value (KD)
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pos.z = is_sky(pos.z) > 0.5 ? 10000.0 : pos.z;
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//Sample position buffer
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float4 pos4 = float4(pos, 1.0);
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//Get current texture coordinates
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float4 p_current = mul(m_current, pos4);
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float2 current_tc = p_current.xy /= p_current.w;
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//Get previous texture coordinates
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float4 p_previous = mul(m_previous, pos4);
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float2 previous_tc = p_previous.xy / p_previous.w;
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//Get velocity (multiplied with motion blur intensity)
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float2 p_velocity = (current_tc - previous_tc) * m_blur;
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return SLB_MBlur(UV, pos, img, p_velocity, 0);
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}
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#endif
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#endif
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