Recently I've been starting to make a motion interpolation shader by delaying the frames by 1. I used the technique about getting previous frames from here:
.
The thing is that after a lot of test I've successfully done the opposite of having interpolated frames between 2 'real' frames. If you enable my shader, it currently remove somes frames.
Can somebody help me sort this out, thanks.
#include "ReShade.fxh"
#include "ReShadeUI.fxh"
#include "DrawText.fxh"
texture2D firstFrameTex : COLOR;
texture2D secondFrameTex { Width = BUFFER_WIDTH; Height = BUFFER_HEIGHT; };
texture2D thirdFrameTex { Width = BUFFER_WIDTH; Height = BUFFER_HEIGHT; };
sampler2D firstFrame { Texture = firstFrameTex; };
sampler2D secondFrame { Texture = secondFrameTex; };
sampler2D thirdFrame { Texture = thirdFrameTex; };
uniform float2 pingpong < source = "pingpong"; min = 0; max = 3; step = 1; smoothing = 0.0; >;
uniform float framecount < source = "framecount"; >;
void FullscreenTriangleVS(uint id : SV_VertexID, out float4 position : SV_Position, out float2 texcoord : TEXCOORD0)
{
texcoord.x = (id == 2) ? 2.0 : 0.0;
texcoord.y = (id == 1) ? 2.0 : 0.0;
position = float4(texcoord * float2(2, -2) + float2(-1, 1), 0, 1);
}
float4 DoFrameInterpolation(float4 vpos : SV_Position, float2 texcoord : TEXCOORD) : SV_Target
{
float4 firstFrameColor = tex2D(firstFrame, texcoord);
float4 secondFrameColor = tex2D(secondFrame, texcoord);
float4 thirdFrameColor = tex2D(thirdFrame, texcoord);
float4 currColor = float4(0f,0f,0f,1f);
float fraction = 0.3;
float res = 0;
DrawText_Digit(float2(500.0, 500.0),32,1,texcoord,0,framecount,res);
if ((framecount % 3) < 0.01f)
{
currColor = secondFrameColor;
}
else if ((framecount % 2) < 0.01f)
{
currColor = (thirdFrameColor - secondFrameColor) * fraction + secondFrameColor;
}
else
{
currColor = thirdFrameColor;
}
return currColor + res;
}
float4 PS_CopySecondFrame(float4 vpos : SV_Position, float2 texcoord : TEXCOORD) : SV_Target
{
return tex2D(firstFrame, texcoord);
}
float4 PS_CopyThirdFrame(float4 vpos : SV_Position, float2 texcoord : TEXCOORD) : SV_Target
{
return tex2D(secondFrame, texcoord);
}
technique MotionInterpolation <
ui_label = "Motion interpolation";
ui_tooltip =
"Adds interpolated frames between 2 real frames by delaying everything by 1 real frame"
"\n\nUnder the Creative Commons CC BY-SA 3.0 license"
"\n(c) 2022 YouYouTheBoxx";
>
{
pass ThirdFrameCopy
{
VertexShader = FullscreenTriangleVS;
PixelShader = PS_CopyThirdFrame;
RenderTarget = thirdFrameTex;
}
pass SecondFrameCopy
{
VertexShader = FullscreenTriangleVS;
PixelShader = PS_CopySecondFrame;
RenderTarget = secondFrameTex;
}
pass FrameInterpolate
{
VertexShader = FullscreenTriangleVS;
PixelShader = DoFrameInterpolation;
}
}Topic Author