Experimental: High-Framerate Frame-Blending

ShoterXX
Topic Author

6 years 5 months ago - 6 years 2 weeks ago #1 by ShoterXX Experimental: High-Framerate Frame-Blending was created by ShoterXX

Something I had lying around since ever.
Simply put, my monitor only goes as far as 76Hz, but games like PSO2 go well over that.
This simply blends frames together, but unlike Motion Blur, it only blends the last frame with the current one.

So yeah, less frames wasted. Note that disabling "Blend All Frames" makes it so that only 1 every 2 frames updates the screen, meaning that if you have 120 FPS, you'll only get 60 FPS effectively. Enabling it makes things smoother, but blurrier.

Also, for obvious reasons, this doesn't work well with V-Sync. And no, this does not replace a 144Hz monitor, lol.

Might develop this a bit more, but not sure if it's worth it.

Old Versions:

Warning: Spoiler!

v0.01:
- Initial release.

Warning: Spoiler!

//#include "Utils.fx"

#if   __RENDERER__ >= 0x14300
	#error "OpenGL is not supported by this shader."
	#define RENDERER_IS_OGL   1
		
#elif __RENDERER__ >= 0x09100 && __RENDERER__ <= 0x09300
	#define RENDERER_IS_D3D9  1
		
#elif __RENDERER__ == 0x0A000 || __RENDERER__ == 0x0A100
	#define RENDERER_IS_D3D10 1
		
#elif __RENDERER__ >= 0x0B000 && __RENDERER__ <= 0x0B200
	#define RENDERER_IS_D3D11 1
		
#endif

#include "ReShade.fxh"

namespace ShoterXX
{	
	#ifndef RENDERER_IS_D3D9
		#define SAFEINT		uint
	#else 
		#define SAFEINT		int
	#endif
	
	uniform SAFEINT fCntr < source = "framecount"; >;
	
	//MACRO FUNCTIONS
	
	#define fetchMe() tex2D(ReShade::BackBuffer, xy)
	
	#define CreateLQTexture(NAME, x, y)\
	\
	texture2D NAME##Tex\
	{\
		Width = ##x;\
		Height = ##y;\
		Format = RGBA8;\
	};\
	\
	sampler2D NAME\
	{\
		Texture = NAME##Tex;\
	};	
	
	//FUNCTIONS
	
	float4   sqr(in float4   sqrMe) { return sqrMe * sqrMe; }
	float    sqr(in float    sqrMe) { return sqrMe * sqrMe; }
	
}


namespace ShoterXX
{

	CreateLQTexture(FBCopy, BUFFER_WIDTH, BUFFER_HEIGHT);
	CreateLQTexture(F0, BUFFER_WIDTH, BUFFER_HEIGHT);
	CreateLQTexture(F1, BUFFER_WIDTH, BUFFER_HEIGHT);
	CreateLQTexture(F0Copy, BUFFER_WIDTH, BUFFER_HEIGHT);	
	
	uniform SAFEINT blendAll <
		ui_type = "combo";
		ui_label = "Blend All Frames";
		ui_items = "No\0Yes\0Yes + extra frame every 2nd frame (experimental)\0";
		ui_tooltip = "Should the effect blend frames every frame, making the image smoother, but blurrier. \"No\" is effectively the same as running half-framerate.";
	> = 2;
	
	void FB_ReadFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 frame0 : SV_Target0, out float4 frame1 : SV_Target1)
	{	
		frame0 = tex2D(F0Copy, xy);
		frame1 = fetchMe();
	}
	
	void FB_BlendFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 put : SV_Target0)
	{	
			
		float4 frame0 = tex2D(F0, xy);
		float4 frame1 = tex2D(F1, xy);
		
		#ifndef RENDERER_IS_D3D9
			bool hasFrame = (blendAll | 1) || (fCntr | 1);
		#else 
			bool hasFrame = (blendAll % 2) || (fCntr % 2);
		#endif
		
		[branch]
		if (hasFrame)
		{
			put = sqrt((sqr(frame0) + sqr(frame1))*.5);
		}
		else
		{
			float4 frameB = tex2D(FBCopy, xy);
			put = blendAll? sqrt((sqr(frameB) + sqr(frame1))*.5) : frameB;
		}
		
	}
	
	void FB_SaveFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 frame0 : SV_Target0, out float4 frameB : SV_Target1)
	{	
		frame0 = tex2D(F1, xy);
		frameB = fetchMe();
	}
	
}

technique FrameBlend
{

	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_ReadFrames;
		RenderTarget0 = ShoterXX::F0Tex;
		RenderTarget1 = ShoterXX::F1Tex;
	}
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_BlendFrames;
	}
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_SaveFrames;
		RenderTarget0 = ShoterXX::F0CopyTex;
		RenderTarget1 = ShoterXX::FBCopyTex;
	}
	
}

v0.02:
- Fixed flipped bitwise operators for DX10+;
- Restructured code, reducing a single fetch.

Warning: Spoiler!

//#include "Utils.fx"

#if   __RENDERER__ >= 0x14300
	#error "OpenGL is not supported by this shader."
	#define RENDERER_IS_OGL   1
		
#elif __RENDERER__ >= 0x09100 && __RENDERER__ <= 0x09300
	#define RENDERER_IS_D3D9  1
		
#elif __RENDERER__ == 0x0A000 || __RENDERER__ == 0x0A100
	#define RENDERER_IS_D3D10 1
		
#elif __RENDERER__ >= 0x0B000 && __RENDERER__ <= 0x0B200
	#define RENDERER_IS_D3D11 1
		
#endif

#include "ReShade.fxh"

namespace ShoterXX
{	
	#ifndef RENDERER_IS_D3D9
		#define SAFEINT		uint
	#else 
		#define SAFEINT		int
	#endif
	
	uniform SAFEINT fCntr < source = "framecount"; >;
	
	//MACRO FUNCTIONS
	
	#define fetchMe() tex2D(ReShade::BackBuffer, xy)
	
	#define CreateLQTexture(NAME, x, y)\
	\
	texture2D NAME##Tex\
	{\
		Width = ##x;\
		Height = ##y;\
		Format = RGBA8;\
	};\
	\
	sampler2D NAME\
	{\
		Texture = NAME##Tex;\
	};	
	
	//FUNCTIONS
	
	float4   sqr(in float4   sqrMe) { return sqrMe * sqrMe; }
	float    sqr(in float    sqrMe) { return sqrMe * sqrMe; }
	
}


namespace ShoterXX
{

	CreateLQTexture(F0, BUFFER_WIDTH, BUFFER_HEIGHT);	
	CreateLQTexture(F0Copy, BUFFER_WIDTH, BUFFER_HEIGHT);
	CreateLQTexture(FB, BUFFER_WIDTH, BUFFER_HEIGHT);
	CreateLQTexture(FBCopy, BUFFER_WIDTH, BUFFER_HEIGHT);	
	
	uniform SAFEINT blendAll <
		ui_type = "combo";
		ui_label = "Blend All Frames";
		ui_items = "No\0Yes\0Yes + extra frame every 2nd frame (experimental)\0";
		ui_tooltip = "Should the effect blend frames every frame, making the image smoother, but blurrier. \"No\" is effectively the same as running half-framerate.";
	> = 2;
	
	void FB_CopyFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 frame0 : SV_Target0, out float4 frameB : SV_Target1)
	{	
		frame0 = tex2D(F0, xy);
		frameB = tex2D(FB, xy);
	}
	
	void FB_BlendFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 frame0 : SV_Target0, out float4 frameB : SV_Target1)
	{	
			
		frame0 = tex2D(F0Copy, xy);
		
		float4 frame1 = fetchMe();
		
		#ifndef RENDERER_IS_D3D9
			bool hasFrame = (blendAll & 1) |  (fCntr & 1);
		#else 
			bool hasFrame = (blendAll % 2) || (fCntr % 2);
		#endif
		
		[branch]
		if (hasFrame)
		{
			frameB = sqrt((sqr(frame0) + sqr(frame1))*.5);
		}
		else
		{
			frameB = tex2D(FBCopy, xy);
			frameB = blendAll? sqrt((sqr(frameB) + sqr(frame1))*.5) : frameB;
		}
		
		frame0 = frame1;
		
	}
	
	void FB_DisplayFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 put : SV_Target0)
	{	
		put = tex2D(FBCopy, xy);
	}
	
}

technique FrameBlend
{

	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_CopyFrames;
		RenderTarget0 = ShoterXX::F0CopyTex;
		RenderTarget1 = ShoterXX::FBCopyTex;
	}
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_BlendFrames;
		RenderTarget0 = ShoterXX::F0Tex;
		RenderTarget1 = ShoterXX::FBTex;
	}
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_DisplayFrames;
	}
	
}

v0.03:
- This shader should work with OpenGL, removed #error preprocess command;
- Added alternative version, "FrameBlur": it's significantly faster, but blurs every single frame together, effectively making it a regular motion blur.

Warning: Spoiler!

//#include "Utils.fx"

#if   __RENDERER__ >= 0x14300
	#define RENDERER_IS_OGL   1
		
#elif __RENDERER__ >= 0x09100 && __RENDERER__ <= 0x09300
	#define RENDERER_IS_D3D9  1
		
#elif __RENDERER__ == 0x0A000 || __RENDERER__ == 0x0A100
	#define RENDERER_IS_D3D10 1
		
#elif __RENDERER__ >= 0x0B000 && __RENDERER__ <= 0x0B200
	#define RENDERER_IS_D3D11 1
		
#endif

#include "ReShade.fxh"

namespace ShoterXX
{	
	#ifndef RENDERER_IS_D3D9
		#define SAFEINT		uint
	#else 
		#define SAFEINT		int
	#endif
	
	uniform SAFEINT fCntr < source = "framecount"; >;
	
	//MACRO FUNCTIONS
	
	#define fetchMe() tex2D(ReShade::BackBuffer, xy)
	
	#define CreateLQTexture(NAME, x, y)\
	\
	texture2D NAME##Tex\
	{\
		Width = ##x;\
		Height = ##y;\
		Format = RGBA8;\
	};\
	\
	sampler2D NAME\
	{\
		Texture = NAME##Tex;\
	};	
	
	//FUNCTIONS
	
	float4   sqr(in float4   sqrMe) { return sqrMe * sqrMe; }
	float    sqr(in float    sqrMe) { return sqrMe * sqrMe; }
	
}


namespace ShoterXX
{

	CreateLQTexture(F0, BUFFER_WIDTH, BUFFER_HEIGHT);	
	CreateLQTexture(F0Copy, BUFFER_WIDTH, BUFFER_HEIGHT);
	CreateLQTexture(FB, BUFFER_WIDTH, BUFFER_HEIGHT);
	CreateLQTexture(FBCopy, BUFFER_WIDTH, BUFFER_HEIGHT);	
	
	uniform SAFEINT blendAll <
		ui_type = "combo";
		ui_label = "Blend All Frames";
		ui_items = "No\0Yes\0Yes + extra frame every 2nd frame (experimental)\0";
		ui_tooltip = "Should the effect blend frames every frame, making the image smoother, but blurrier. \"No\" is effectively the same as running half-framerate.";
	> = 2;
	
	void FB_CopyFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 frame0 : SV_Target0, out float4 frameB : SV_Target1)
	{	
		frame0 = tex2D(F0, xy);
		frameB = tex2D(FB, xy);
	}
	
	void FB_BlendFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 frame0 : SV_Target0, out float4 frameB : SV_Target1)
	{	
			
		frame0 = tex2D(F0Copy, xy);
		
		float4 frame1 = fetchMe();
		
		#ifndef RENDERER_IS_D3D9
			bool hasFrame = (blendAll & 1) |  (fCntr & 1);
		#else 
			bool hasFrame = (blendAll % 2) || (fCntr % 2);
		#endif
		
		[branch]
		if (hasFrame)
		{
			frameB = sqrt((sqr(frame0) + sqr(frame1))*.5);
		}
		else
		{
			frameB = tex2D(FBCopy, xy);
			frameB = blendAll? sqrt(sqr(frameB)*.666666666667 + sqr(frame1)*.333333333333) : frameB;
		}
		
		frame0 = frame1;
		
	}
	
	void FB_DisplayFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 put : SV_Target0)
	{	
		put = tex2D(FBCopy, xy);
	}
	
	void FB_SaveFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 put : SV_Target0)
	{	
		put = fetchMe();
	}
	
	void FB_BlurFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 put : SV_Target0)
	{	
		put = sqrt(sqr(fetchMe())*.666666666667 + sqr(tex2D(FB, xy))*.333333333333);
	}
}

technique FrameBlend
{

	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_CopyFrames;
		RenderTarget0 = ShoterXX::F0CopyTex;
		RenderTarget1 = ShoterXX::FBCopyTex;
	}
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_BlendFrames;
		RenderTarget0 = ShoterXX::F0Tex;
		RenderTarget1 = ShoterXX::FBTex;
	}
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_DisplayFrames;
	}

}

technique FrameBlur
{
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_BlurFrames;
	}
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_SaveFrames;
		RenderTarget0 = ShoterXX::FBTex;
	}
	
}

v0.04:
- Added "Target Framerate" field. When your framerate drops below this value, it disables the effect, preventing stuttering and awkward bluring;
- Added "Blur Strength" field, which determines how much it retains from the previous frames (only works with "FrameBlur");
- Something else, forgot what.

Warning: Spoiler!

//#include "Utils.fx"

#if   __RENDERER__ >= 0x14300
	#define RENDERER_IS_OGL   1
		
#elif __RENDERER__ >= 0x09100 && __RENDERER__ <= 0x09300
	#define RENDERER_IS_D3D9  1
		
#elif __RENDERER__ == 0x0A000 || __RENDERER__ == 0x0A100
	#define RENDERER_IS_D3D10 1
		
#elif __RENDERER__ >= 0x0B000 && __RENDERER__ <= 0x0B200
	#define RENDERER_IS_D3D11 1
		
#endif

#include "ReShade.fxh"

namespace ShoterXX
{	
	#ifndef RENDERER_IS_D3D9
		#define SAFEINT		uint
	#else 
		#define SAFEINT		int
	#endif
	
	uniform SAFEINT fCntr < source = "framecount"; >;
	uniform float fTime < source = "frametime"; >;
	
	//MACRO FUNCTIONS
	
	#define fetchMe() tex2D(ReShade::BackBuffer, xy)
	
	#define CreateLQTexture(NAME, x, y)\
	\
	texture2D NAME##Tex\
	{\
		Width = ##x;\
		Height = ##y;\
		Format = RGBA8;\
	};\
	\
	sampler2D NAME\
	{\
		Texture = NAME##Tex;\
	};	
	
	//FUNCTIONS
	
	float4   sqr(in float4   sqrMe) { return sqrMe * sqrMe; }
	float    sqr(in float    sqrMe) { return sqrMe * sqrMe; }
	
}


namespace ShoterXX
{

	CreateLQTexture(F0, BUFFER_WIDTH, BUFFER_HEIGHT);	
	CreateLQTexture(F0Copy, BUFFER_WIDTH, BUFFER_HEIGHT);
	CreateLQTexture(FB, BUFFER_WIDTH, BUFFER_HEIGHT);
	CreateLQTexture(FBCopy, BUFFER_WIDTH, BUFFER_HEIGHT);	
	
	uniform SAFEINT blendAll <
		ui_type = "combo";
		ui_label = "Blend All Frames";
		ui_items = "No\0Yes\0Yes + extra frame every 2nd frame (experimental)\0";
		ui_tooltip = "Should the effect blend frames every frame, making the image smoother, but blurrier. \"No\" is effectively the same as running half-framerate.";
	> = 2;
	
	uniform float tFRate <
		ui_type = "drag";
		ui_label = "Target Framerate";
		ui_min = 0.0; ui_max = 300.0;
		ui_tooltip = "Monitor's refresh rate. The effect shall compensate when framerate is too low to look proper.";
	> = 75.;
	
	uniform float blurStr <
		ui_type = "drag";
		ui_label = "Blur Strength (FrameBlur only)";
		ui_min = 0.0; ui_max = 1.0;
		ui_tooltip = "How much of the old frame persists.";
	> = .666666666667;
	
	void FB_CopyFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 frame0 : SV_Target0, out float4 frameB : SV_Target1)
	{	
		frame0 = tex2D(F0, xy);
		frameB = tex2D(FB, xy);
	}
	
	void FB_BlendFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 frame0 : SV_Target0, out float4 frameB : SV_Target1)
	{	
			
		frame0 = tex2D(F0Copy, xy);
		
		float4 frame1 = fetchMe();
		
		#ifndef RENDERER_IS_D3D9
			bool hasFrame = (blendAll & 1) |  (fCntr & 1) ;
		#else 
			bool hasFrame = (blendAll % 2) || (fCntr % 2);
		#endif
		
		float fEst = 1. - saturate(((1000./fTime)/tFRate) - 1.);
		
		[branch]
		if (hasFrame)
		{
			frameB = sqrt(lerp(sqr(frame0),sqr(frame1),.5 + .5 * fEst));
		}
		else
		{
			frameB = tex2D(FBCopy, xy);
			frameB = blendAll? sqrt(lerp(sqr(frameB),sqr(frame1),.333333333333 + .666666666667 * fEst)) : fEst? frame1 : frameB;
		}
		
		frame0 = frame1;
		
	}
	
	void FB_DisplayFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 put : SV_Target0)
	{	
		put = tex2D(FBCopy, xy);
	}
	
	void FB_SaveFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 put : SV_Target0)
	{	
		put = fetchMe();
	}
	
	void FB_BlurFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 put : SV_Target0)
	{	
		float fEst = 1. - saturate(((1000./fTime)/tFRate) - 1.);
		put = sqrt(lerp(sqr(tex2D(FB, xy)),sqr(fetchMe()),(1.-blurStr) + blurStr * fEst));
	}
}

technique FrameBlend
{

	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_CopyFrames;
		RenderTarget0 = ShoterXX::F0CopyTex;
		RenderTarget1 = ShoterXX::FBCopyTex;
	}
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_BlendFrames;
		RenderTarget0 = ShoterXX::F0Tex;
		RenderTarget1 = ShoterXX::FBTex;
	}
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_DisplayFrames;
	}

}

technique FrameBlur
{
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_BlurFrames;
	}
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_SaveFrames;
		RenderTarget0 = ShoterXX::FBTex;
	}
	
}

v0.05:
- Added a "Frame Drop Threshold", allowing for adjusting how much the framerate can dip without dropping a blurred frame. Default is 33% of target framerate;
- Frametime is now the average of 2 frames, reducing the number of needlessly dropped frames;
- Fixed issue where FrameBlend was showing a 1-frame-old image. Oops;
- Added debug mode that shows when the effect is dropping frames;
- Minor miscelaneous changes.

Warning: Spoiler!

//#include "Utils.fx"

#if   __RENDERER__ >= 0x14300
	#define RENDERER_IS_OGL   1
		
#elif __RENDERER__ >= 0x09100 && __RENDERER__ <= 0x09300
	#define RENDERER_IS_D3D9  1
		
#elif __RENDERER__ == 0x0A000 || __RENDERER__ == 0x0A100
	#define RENDERER_IS_D3D10 1
		
#elif __RENDERER__ >= 0x0B000 && __RENDERER__ <= 0x0B200
	#define RENDERER_IS_D3D11 1
		
#endif

#include "ReShade.fxh"

namespace ShoterXX
{	
	#ifndef RENDERER_IS_D3D9
		#define SAFEINT		uint
	#else 
		#define SAFEINT		int
	#endif
	
	uniform SAFEINT fCntr < source = "framecount"; >;
	uniform float fTime < source = "frametime"; >;
	
	//MACRO FUNCTIONS
	
	#define fetchMe() tex2D(ReShade::BackBuffer, xy)
	
	#define CreateLQTexture(NAME, x, y)\
	\
	texture2D NAME##Tex\
	{\
		Width = ##x;\
		Height = ##y;\
		Format = RGBA8;\
	};\
	\
	sampler2D NAME\
	{\
		Texture = NAME##Tex;\
	};	
	
	//FUNCTIONS
	
	float4   sqr(in float4   sqrMe) { return sqrMe * sqrMe; }
	float    sqr(in float    sqrMe) { return sqrMe * sqrMe; }
	
}


namespace ShoterXX
{

	CreateLQTexture(F0, BUFFER_WIDTH, BUFFER_HEIGHT);	
	CreateLQTexture(F0Copy, BUFFER_WIDTH, BUFFER_HEIGHT);
	CreateLQTexture(FB, BUFFER_WIDTH, BUFFER_HEIGHT);
	CreateLQTexture(FBCopy, BUFFER_WIDTH, BUFFER_HEIGHT);	
	
	uniform SAFEINT blendAll <
		ui_type = "combo";
		ui_label = "Blend All Frames";
		ui_items = "No\0Yes\0Yes + extra frame every 2nd frame (experimental)\0";
		ui_tooltip = "Should the effect blend frames every frame, making the image smoother, but blurrier. \"No\" is effectively the same as running half-framerate.";
	> = 0;
	
	uniform SAFEINT tFRate <
		ui_type = "drag";
		ui_label = "Target Framerate";
		ui_min = 0.0; ui_max = 255.0;
		ui_tooltip = "Monitor's refresh rate. The effect shall compensate when framerate is too low to look proper.";
	> = 75.;
	
	uniform float tFThres <
		ui_type = "drag";
		ui_label = "Frame Drop Threshold";
		ui_min = 0.0; ui_max = 1.0;
		ui_tooltip = "How much the effect is allowed to lax on framerate drops, providing a smoother overall. Too much will result on lack of framerate compensation, too little may cause uneccessary frames to drop.";
	> = .333333333333;
	
	uniform float blurStr <
		ui_type = "drag";
		ui_label = "Blur Strength (FrameBlur only)";
		ui_min = 0.0; ui_max = 1.0;
		ui_tooltip = "How much of the old frame persists.";
	> = .666666666667;
	
	uniform bool dbgON <
		ui_label = "Show dropped frames";
		ui_tooltip = "Show dropped frames. Grey is OK, Yellow means partially dropped, Red means fully dropped.";
		ui_category = "\n\nDEBUG\0";
	> = 0;
	
	void FB_CopyFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 frame0 : SV_Target0, out float4 frameB : SV_Target1)
	{	
		frame0 = tex2D(F0, xy);
		frameB = tex2D(FB, xy);
	}
	
	void FB_BlendFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 frame0 : SV_Target0, out float4 frameB : SV_Target1)
	{
		float4 frame1 = tex2D(F0Copy, xy);
		
		frame0 = fetchMe();
		
		#ifndef RENDERER_IS_D3D9
			bool hasFrame = (blendAll & 1) |  (fCntr & 1) ;
		#else 
			bool hasFrame = (blendAll % 2) || (fCntr % 2);
		#endif
		
		float fEst = saturate((((1000./fTime) + frame0.a * 255.)/(4.*tFRate*(1. - tFThres))) - 1.);
		
		[branch]
		if (hasFrame)
		{
			frameB = sqrt(lerp(sqr(frame1),sqr(frame0), 1. - .5 * fEst));
		}
		else
		{
			frameB = tex2D(FBCopy, xy);
			
			[branch]
			if (blendAll)
			{
				frameB = sqrt(lerp(sqr(frame1),sqr(frame0), 1. - .666666666667 * fEst));
			}
			else
			{
				frameB = (1. - fEst)? frame0 : frameB;
			}
		}
		
		frame0.a = (1000./fTime)/255.;
		
		[branch]
		if (dbgON)
			if (xy.x > .99 || xy.y > .99 || xy.x < .01 || xy.y < .01)
			{
				if(1.-fEst)
				{
					if(fEst == 0)
					{
						frameB.rgb = float3(1,0,0);
					}
					else
					{
						frameB.rgb = float3(1,1,0);
					}
				}
				else
				{
					frameB.rgb = float3(0.5,0.5,0.5);
				}
			}
	}
	
	void FB_DisplayFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 put : SV_Target0)
	{	
		put = tex2D(FB, xy);
	}
	
	void FB_SaveFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 put : SV_Target0)
	{	
		put = fetchMe();
		put.a = (1000./fTime)/255.;
	}
	
	void FB_BlurFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 put : SV_Target0)
	{	
		put = tex2D(FB, xy);
		float fEst = saturate((((1000./fTime) + put.a * 255.)/(4.*tFRate*(1. - tFThres))) - 1.);
		put = sqrt(lerp(sqr(put),sqr(fetchMe()), 1. - blurStr * fEst));
	}
}

technique FrameBlend
{

	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_CopyFrames;
		RenderTarget0 = ShoterXX::F0CopyTex;
		RenderTarget1 = ShoterXX::FBCopyTex;
	}
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_BlendFrames;
		RenderTarget0 = ShoterXX::F0Tex;
		RenderTarget1 = ShoterXX::FBTex;
	}
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_DisplayFrames;
	}

}

technique FrameBlur
{
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_BlurFrames;
	}
	
	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_SaveFrames;
		RenderTarget0 = ShoterXX::FBTex;
	}
	
}

v0.06:
- Only FrameBlend exists now, but it's a much more comprehensive effect, blending up to 255 previously unused frames for silk-smoothness (good luck reaching 60*255 = 15300 FPS), based on your set framerate;
- Fixed random black frames/severe stutter (report if you still find any);
- Removed debug mode because it's not really useful anymore;
- Minor changes;

Warning: Spoiler!

#if   __RENDERER__ >= 0x14300
	#define RENDERER_IS_OGL   1
		
#elif __RENDERER__ >= 0x09100 && __RENDERER__ <= 0x09300
	#define RENDERER_IS_D3D9  1
		
#elif __RENDERER__ == 0x0A000 || __RENDERER__ == 0x0A100
	#define RENDERER_IS_D3D10 1
		
#elif __RENDERER__ >= 0x0B000 && __RENDERER__ <= 0x0B200
	#define RENDERER_IS_D3D11 1
		
#endif

#include "ReShade.fxh"

namespace ShoterXX
{	
	#ifndef RENDERER_IS_D3D9
		#define SAFEINT		uint
	#else 
		#define SAFEINT		int
	#endif
	
	uniform SAFEINT fCntr < source = "framecount"; >;
	uniform float fTime < source = "frametime"; >;
	
	//MACRO FUNCTIONS
	
	#define fetchMe() tex2D(ReShade::BackBuffer, xy)
	
	#define CreateLQTexture(NAME, x, y)\
	\
	texture2D NAME##Tex\
	{\
		Width = ##x;\
		Height = ##y;\
		Format = RGBA8;\
	};\
	\
	sampler2D NAME\
	{\
		Texture = NAME##Tex;\
	};
	
	#define CreateMQTexture(NAME, x, y)\
	\
	texture2D NAME##Tex\
	{\
		Width = ##x;\
		Height = ##y;\
		Format = RGBA16F;\
	};\
	\
	sampler2D NAME\
	{\
		Texture = NAME##Tex;\
	};
	
	//FUNCTIONS
	
	float4   sqr(in float4   sqrMe) { return sqrMe * sqrMe; }
	float3   sqr(in float3   sqrMe) { return sqrMe * sqrMe; }
	float    sqr(in float    sqrMe) { return sqrMe * sqrMe; }
	
}


namespace ShoterXX
{

	CreateMQTexture(F0, BUFFER_WIDTH, BUFFER_HEIGHT);	
	CreateMQTexture(F0Copy, BUFFER_WIDTH, BUFFER_HEIGHT);
	CreateLQTexture(FB, BUFFER_WIDTH, BUFFER_HEIGHT);
	CreateLQTexture(FBCopy, BUFFER_WIDTH, BUFFER_HEIGHT);
	
	uniform SAFEINT tFRate <
		ui_type = "drag";
		ui_label = "Target Framerate";
		ui_min = 1; ui_max = 255;
		ui_tooltip = "Monitor's refresh rate. The effect shall compensate when framerate is too low to look proper.";
	> = 60;
	
	uniform float tFThres <
		ui_type = "drag";
		ui_label = "Frame Drop Threshold";
		ui_min = 0.0; ui_max = 2.0;
		ui_tooltip = "How much the effect is allowed to lax on frame drops, providing a smoother overall. Too much will result on lack of framerate compensation and cause visual stutter, too little may cause frames to drop uneccessarily early, and not be as smooth.";
	> = 1.125;
	
	uniform float blurStr <
		ui_type = "drag";
		ui_label = "Blur Strength";
		ui_min = 0.0; ui_max = 1.0;
		ui_tooltip = "Changes bias between the buffer and the most recent frame.";
	> = 0.5;
	
	void FB_CopyFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 frame0 : SV_Target0, out float4 frameB : SV_Target1)
	{	
		frame0 = tex2D(F0, xy);
		frameB = tex2D(FB, xy);
	}
	
	void FB_DisplayFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 put : SV_Target0)
	{	
		put = tex2D(FB, xy);
	}
	
	void FB_AddFrames(in float4 vpos : SV_Position, in float2 xy : TEXCOORD, out float4 frame0 : SV_Target0, out float4 frameB : SV_Target1)
	{
		frameB = tex2D(FBCopy, xy);
		frame0 = tex2D(F0Copy, xy);
		
		int curFrameN = frameB.a * 255;
		
		int lastNFrame = ((1000./frame0.a)/tFRate * (1 + tFThres));
		
		int nFrame = ((1000./fTime)/tFRate * (1 + tFThres));
		
		nFrame = floor((nFrame + lastNFrame * lastNFrame)/(nFrame + lastNFrame));
		
		[branch]
		if (!curFrameN)
		{
			frame0 = fetchMe();
		}
		else
		{
			frame0 = sqrt((sqr(frame0) * curFrameN + sqr(fetchMe())*(1./blurStr))/(curFrameN+(1./blurStr)));
		}
		
		[branch]
		if (curFrameN > (nFrame - 2))
		{
			frameB = float4(frame0.rgb,0.);
		}
		else
		{
			frameB.a = ((++curFrameN)/255.);
		}
		
		frame0.a = fTime;
	}

technique FrameBlend
{

	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_AddFrames;
		RenderTarget0 = ShoterXX::F0Tex;
		RenderTarget1 = ShoterXX::FBTex;
	}

	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_CopyFrames;
		RenderTarget0 = ShoterXX::F0CopyTex;
		RenderTarget1 = ShoterXX::FBCopyTex;
	}
	

	pass
	{
		VertexShader = PostProcessVS;
		PixelShader = ShoterXX::FB_DisplayFrames;
	}

}

}

Some actual screenshots:

Last edit: 6 years 2 weeks ago by ShoterXX.

The following user(s) said Thank You: CryZENx, v00d00m4n, Scorpio82CO, Neonstar, andrew, PureEvilWindom, mws432

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Scorpio82CO

6 years 5 months ago #2 by Scorpio82CO Replied by Scorpio82CO on topic Experimental: High-Framerate Frame-Blending

I can´t made it work in OpenGL

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ShoterXX
Topic Author

6 years 5 months ago #3 by ShoterXX Replied by ShoterXX on topic Experimental: High-Framerate Frame-Blending

Scorpio82CO wrote: I can´t made it work in OpenGL

Yeah, it's currently disabled, because OpenGL often requires extra work, and often goes unused, but I can take a look at it tomorrow.

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crosire

6 years 5 months ago #4 by crosire Replied by crosire on topic Experimental: High-Framerate Frame-Blending

ShoterXX wrote: OpenGL often requires extra work, and often goes unused

That should not be the case. If it is, then that is a bug and I would like to know about it.

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ShoterXX
Topic Author

6 years 5 months ago - 6 years 5 months ago #5 by ShoterXX Replied by ShoterXX on topic Experimental: High-Framerate Frame-Blending

crosire wrote:
ShoterXX wrote: OpenGL often requires extra work, and often goes unused
That should not be the case. If it is, then that is a bug and I would like to know about it.

For example, just now:

		#ifndef RENDERER_IS_D3D9
			bool hasFrame = (blendAll & 1) |  (fCntr & 1);
		#else 
			bool hasFrame = (blendAll % 2) || (fCntr % 2);
		#endif

DX9 cannot use bitwise operations, so I use modulo. However, with OGL, it'll complain about implicit cast between unsigned integer and boolean. Fortunately, the way I had it was already OK, so all I need to do is remove the #error command. But IIRC, modulo doesn't work the same between OGL and DX either.

Then again, it's been a while since I last used OGL, so things most likely have changed,

Last edit: 6 years 5 months ago by ShoterXX.

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ShoterXX
Topic Author

6 years 4 months ago #6 by ShoterXX Replied by ShoterXX on topic Experimental: High-Framerate Frame-Blending

Self bumped due to update. This one should help with stuttering and frame drops.

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Michael35699

6 years 3 weeks ago #7 by Michael35699 Replied by Michael35699 on topic Experimental: High-Framerate Frame-Blending

Is this compatible with Reshade 3?

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crosire

6 years 3 weeks ago #8 by crosire Replied by crosire on topic Experimental: High-Framerate Frame-Blending

It requires ReShade 3, so yeah.

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ShoterXX
Topic Author

6 years 3 weeks ago #9 by ShoterXX Replied by ShoterXX on topic Experimental: High-Framerate Frame-Blending

Man, this version is pretty outdated now. I'll update soon since people still use it apparently.
And I'll probably need some help finding a bug causing some games to flicker like mad.

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Michael35699

6 years 3 weeks ago #10 by Michael35699 Replied by Michael35699 on topic Experimental: High-Framerate Frame-Blending

I found in some games that enabling some FakeHDR.fx and Frame Blur makes the game flicker. FakeHDR with Frame Blend works though.

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ShoterXX
Topic Author

6 years 3 weeks ago - 6 years 3 weeks ago #11 by ShoterXX Replied by ShoterXX on topic Experimental: High-Framerate Frame-Blending

Yeah, and in some other games, you don't even need a different effect for it to break.

Last edit: 6 years 3 weeks ago by ShoterXX.

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AndreyRGW

6 years 3 weeks ago #12 by AndreyRGW Replied by AndreyRGW on topic Experimental: High-Framerate Frame-Blending

What should I do if I have an error: failed to compile?

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ShoterXX
Topic Author

6 years 3 weeks ago #13 by ShoterXX Replied by ShoterXX on topic Experimental: High-Framerate Frame-Blending

You can post the log here, to see why it failed to compile.

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ShoterXX
Topic Author

6 years 2 weeks ago - 6 years 2 weeks ago #14 by ShoterXX Replied by ShoterXX on topic Experimental: High-Framerate Frame-Blending

Bump for update + bug fixing.

Lesson learned, unsigned integers in logic can be dangerous.

Last edit: 6 years 2 weeks ago by ShoterXX.

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Sami 1999

6 years 1 week ago #15 by Sami 1999 Replied by Sami 1999 on topic Experimental: High-Framerate Frame-Blending

This is great. Finally I can put those extra frames to use.

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reter

5 years 8 months ago #16 by reter Replied by reter on topic Experimental: High-Framerate Frame-Blending

Wait, is that similar to frame interpolation?

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lowenz

5 years 8 months ago #17 by lowenz Replied by lowenz on topic Experimental: High-Framerate Frame-Blending

reter wrote: Wait, is that similar to frame interpolation?

More kind of decimation.

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DaInferno

5 years 7 months ago #18 by DaInferno Replied by DaInferno on topic Experimental: High-Framerate Frame-Blending

So... is this still being worked on? And if so, is there any way to have it work on the latest version of Reshade?

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ShoterXX
Topic Author

5 years 7 months ago #19 by ShoterXX Replied by ShoterXX on topic Experimental: High-Framerate Frame-Blending

I just tested it, and it seemed to work fine on 4.2.1. If you're having issues, please do report them.

As for being worked on... not really. Performance-wise, I don't see a significant way to improve it. I tried messing with ways to blur in-between frames, but the performance hit and quality were not good enough.

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DaInferno

5 years 7 months ago #20 by DaInferno Replied by DaInferno on topic Experimental: High-Framerate Frame-Blending

Well actually, I'm currently trying to get this working on Dolphin Emulator. Specifically on Super Smash Bros. Brawl. I really want to try and use that Frame Blur on the game. Perhaps you could look into that?

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