Batocera.PLUS-bios/dolphin-emu/Sys/Shaders/auto_toon2.glsl

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2021-08-22 20:02:14 +00:00
void main()
{
//Changethis to increase the number of colors.
int numColors =8;
float4 to_gray = float4(0.3,0.59,0.11,0);
float x1 = dot(to_gray, SampleOffset(int2( 1, 1)));
float x0 = dot(to_gray, SampleOffset(int2(-1,-1)));
float x3 = dot(to_gray, SampleOffset(int2( 1,-1)));
float x2 = dot(to_gray, SampleOffset(int2(-1, 1)));
float edge = (x1 - x0) * (x1 - x0) + (x3 - x2) * (x3 - x2);
float4 color = Sample();
float4 c0 = color - float4(edge, edge, edge, edge) * 12.0;
float red = 0.0;
float green = 0.0;
float blue = 0.0;
bool rr = false;
bool bb = false;
bool gg = false;
int count = 1;
float colorN = 0.0;
float colorB = 0.0;
for (count = 1; count <= numColors; count++)
{
colorN = float(count / numColors);
if ( c0.r <= colorN && c0.r >= colorB && rr == false )
{
if (count == 1)
{
if (colorN >= 0.1)
red = 0.01;
else
red = colorN;
}
else if (count == numColors)
red = 0.95;
else
red = colorN;
rr = true;
}
if (c0.b <= colorN && c0.b >= colorB && bb == false)
{
if (count == 1)
{
if (colorN >= 0.1)
blue = 0.01;
else
blue = colorN;
}
else if (count == numColors)
blue = 0.95;
else
blue = colorN ;
bb = true;
}
if (c0.g <= colorN && c0.g >= colorB && gg == false)
{
if (count == 1)
{
if (colorN >= 0.1)
green = 0.01;
else
green = colorN;
}
else if (count == numColors)
green = 0.95;
else
green = colorN;
gg = true;
}
colorB = float(count / numColors);
if (rr == true && bb == true && gg == true)
break;
}
SetOutput(float4(red, green, blue, c0.a));
}