Video temporal blur on Mednafen psx

RetroArch General
#1

I noticed that on the android version of retroarch,this option aka “blur” is missing.Does the pc version have this or if not why has this option been hidden/not been implemented?

#2

That sort of task is usually handled by shaders in RetroArch.

This shader should do the same thing:

/*
    Temporal Blur
    by hunterk
*/

struct previous
{
   uniform sampler2D texture;
   float2 tex_coord;
};

struct input
{
    float2 video_size;
    float2 texture_size;
    float2 output_size;
    float frame_count;
    float frame_direction;
    float frame_rotation;
    sampler2D texture : TEXUNIT0;
};

struct tex_coords
{
   float2 tex;
   float2 prev;
};

void main_vertex
(
   float4 position : POSITION,
   out float4 oPosition : POSITION,
   uniform float4x4 modelViewProj,
   float2 tex : TEXCOORD,

   previous PREV,
   out tex_coords coords
)
{
   oPosition = mul(modelViewProj, position);
   coords = tex_coords(tex, PREV.tex_coord);
}

struct output 
{
  float4 col    : COLOR;
};

output main_fragment(in float2 tex : TEXCOORD0,
uniform input IN,
      previous PREV
)
{
   float4 color = pow(tex2D(IN.texture, tex), 2.2);
   float4 last = pow(tex2D(PREV.texture, tex), 2.2);
   color = float4(pow((color + last) / 2.0, 1.0 / 2.2));

   output OUT;
   OUT.col = color;
   return OUT;
}
#3

and that shader is on both android and pc versions,right?

#4

That’s Cg format. Dunno if the cg2glsl script will like it or not.