ReShade 3.0 Progress Discussion

/*******
Marty McFly's Emboss shader
Ported to ReShade 3.0 by moriz1
*******/

uniform int bEmbossDoDepthCheck <
	ui_type = "drag";
	ui_min = 0; ui_max = 1;
	ui_label = "Depth Check";
	ui_tooltip = "EXPERIMENTAL! If enabled, shader compares emboss samples depth to avoid artifacts at object borders.";
> = 0;
uniform float fEmbossDepthCutoff <
	ui_type = "drag";
	ui_min = 0.0001; ui_max = 0.0100;
	ui_label = "Depth Cutoff";
	ui_tooltip = "Preserves object edges from getting artifacts. If pixel depth difference of emboss samples is higher than that, pixel gets skipped.";
> = 0.0001;
uniform float fEmbossPower <
	ui_type = "drag";
	ui_min = 0.100; ui_max = 2.000;
	ui_label = "Power";
	ui_tooltip = "Amount of embossing.";
> = 0.666;
uniform float fEmbossOffset <
	ui_type = "drag";
	ui_min = 0.5; ui_max = 5.000;
	ui_label = "Offset";
	ui_tooltip = "Pixel offset for embossing.";
> = 2.0;
uniform float iEmbossAngle <
	ui_type = "drag";
	ui_min = 0.0; ui_max = 360.000;
	ui_label = "Offset";
	ui_tooltip = "Pixel offset angle for embossing.";
> = 90.0;

#include "ReShade.fxh"

float4 PS_Emboss(float4 vpos : SV_Position, float2 texcoord : TEXCOORD) : SV_Target
{
	float4 res = 0;
	float4 origcolor = tex2D(ReShade::BackBuffer, texcoord);

        float2 offset;
	sincos(radians( iEmbossAngle), offset.y, offset.x);
	float3 col1 = tex2D(ReShade::BackBuffer, texcoord - ReShade::PixelSize*fEmbossOffset*offset).rgb;
	float3 col2 = origcolor.rgb;
	float3 col3 = tex2D(ReShade::BackBuffer, texcoord + ReShade::PixelSize*fEmbossOffset*offset).rgb;

#if(bEmbossDoDepthCheck != 0)
	float depth1 = tex2D(ReShade::OriginalDepth,texcoord - ReShade::PixelSize*fEmbossOffset).r;
	float depth2 = tex2D(ReShade::OriginalDepth,texcoord).r;
	float depth3 = tex2D(ReShade::OriginalDepth,texcoord + ReShade::PixelSize*fEmbossOffset).r;
#endif
	
	float3 colEmboss = col1 * 2.0 - col2 - col3;

	float colDot = max(0,dot(colEmboss, 0.333))*fEmbossPower;

	float3 colFinal = col2 - colDot;

	float luminance = dot( col2, float3( 0.6, 0.2, 0.2 ) );

	res.xyz = lerp( colFinal, col2, luminance * luminance ).xyz;
#if(bEmbossDoDepthCheck != 0)
        if(max(abs(depth1-depth2),abs(depth3-depth2)) > fEmbossDepthCutoff) res = origcolor;
#endif
	return res;

}

technique Emboss_Tech
{
	pass Emboss
	{
		VertexShader = PostProcessVS;
		PixelShader = PS_Emboss;
	}
}