GS/HW: Adjust RTA shader precision.

PCSX2 · Mar 2, 2024 · 7fb558c · 7fb558c
1 parent 4c9c066
commit 7fb558c
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Showing 4 changed files with 8 additions and 8 deletions.
diff --git a/bin/resources/shaders/dx11/convert.fx b/bin/resources/shaders/dx11/convert.fx
@@ -139,15 +139,15 @@ PS_OUTPUT ps_rta_correction(PS_INPUT input)
 {
 	PS_OUTPUT output;
 	float4 value = sample_c(input.t);
-	output.c = float4(value.rgb, (value.a * 255.0f) / 127.5f);
+	output.c = float4(value.rgb, (value.a * 255.0f + 0.1f) / 127.5f);
 	return output;
 }
 
 PS_OUTPUT ps_rta_decorrection(PS_INPUT input)
 {
 	PS_OUTPUT output;
 	float4 value = sample_c(input.t);
-	output.c = float4(value.rgb, (value.a * 127.5f) / 255.0f);
+	output.c = float4(value.rgb, (value.a * 127.5f + 0.1f) / 255.0f);
 	return output;
 }
 

diff --git a/bin/resources/shaders/opengl/convert.glsl b/bin/resources/shaders/opengl/convert.glsl
@@ -337,15 +337,15 @@ void ps_datm0_rta_correction()
 void ps_rta_correction()
 {
 	vec4 value = sample_c();
-	SV_Target0 = vec4(value.rgb, (value.a * 255.0f) / 127.5f);
+	SV_Target0 = vec4(value.rgb, (value.a * 255.0f + 0.1f) / 127.5f);
 }
 #endif
 
 #ifdef ps_rta_decorrection
 void ps_rta_decorrection()
 {
 	vec4 value = sample_c();
-	SV_Target0 = vec4(value.rgb, (value.a * 127.5f) / 255.0f);
+	SV_Target0 = vec4(value.rgb, (value.a * 127.5f + 0.1f) / 255.0f);
 }
 #endif
 

diff --git a/bin/resources/shaders/vulkan/convert.glsl b/bin/resources/shaders/vulkan/convert.glsl
@@ -114,15 +114,15 @@ void ps_datm0_rta_correction()
 void ps_rta_correction()
 {
 	vec4 value = sample_c(v_tex);
-	o_col0 = vec4(value.rgb, (value.a * 255.0f) / 127.5f);
+	o_col0 = vec4(value.rgb, (value.a * 255.0f + 0.1f) / 127.5f);
 }
 #endif
 
 #ifdef ps_rta_decorrection
 void ps_rta_decorrection()
 {
 	vec4 value = sample_c(v_tex);
-	o_col0 = vec4(value.rgb, (value.a * 127.5f) / 255.0f);
+	o_col0 = vec4(value.rgb, (value.a * 127.5f + 0.1f) / 255.0f);
 }
 #endif
 

diff --git a/pcsx2/GS/Renderers/Metal/convert.metal b/pcsx2/GS/Renderers/Metal/convert.metal
@@ -129,13 +129,13 @@ fragment float4 ps_primid_rta_init_datm0(float4 p [[position]], DirectReadTextur
 fragment float4 ps_rta_correction(float4 p [[position]], DirectReadTextureIn<float> tex)
 {
 	float4 in = tex.read(p);
-	return float4(in.rgb, (in.a * 255.f) / 127.5f);
+	return float4(in.rgb, (in.a * 255.f + 0.1f) / 127.5f);
 }
 
 fragment float4 ps_rta_decorrection(float4 p [[position]], DirectReadTextureIn<float> tex)
 {
 	float4 in = tex.read(p);
-	return float4(in.rgb, (in.a * 127.5f) / 255.f);
+	return float4(in.rgb, (in.a * 127.5f + 0.1f) / 255.f);
 }
 
 fragment float4 ps_hdr_init(float4 p [[position]], DirectReadTextureIn<float> tex)