| FX
// Samplers sampler2D buf0 = sampler_state { Address = Clamp; Filter = None; };
context FXAA { VertexShader = compile GLSL VS_FSQUAD; PixelShader = compile GLSL FS_FXAA; }
VS_FSQUAD
uniform mat4 projMat; attribute vec3 vertPos; varying vec2 texCoords;
void main(void) { texCoords = vertPos.xy; gl_Position = projMat * vec4( vertPos, 1 ); }
FS_FXAA
uniform sampler2D buf0; uniform vec2 frameBufSize; varying vec2 texCoords;
void main( void ) { //gl_FragColor.xyz = texture2D(buf0,texCoords).xyz; //return;
float FXAA_SPAN_MAX = 8.0; float FXAA_REDUCE_MUL = 1.0/8.0; float FXAA_REDUCE_MIN = 1.0/128.0;
vec3 rgbNW=texture2D(buf0,texCoords+(vec2(-1.0,-1.0)/frameBufSize)).xyz; vec3 rgbNE=texture2D(buf0,texCoords+(vec2(1.0,-1.0)/frameBufSize)).xyz; vec3 rgbSW=texture2D(buf0,texCoords+(vec2(-1.0,1.0)/frameBufSize)).xyz; vec3 rgbSE=texture2D(buf0,texCoords+(vec2(1.0,1.0)/frameBufSize)).xyz; vec3 rgbM=texture2D(buf0,texCoords).xyz;
vec3 luma=vec3(0.299, 0.587, 0.114); float lumaNW = dot(rgbNW, luma); float lumaNE = dot(rgbNE, luma); float lumaSW = dot(rgbSW, luma); float lumaSE = dot(rgbSE, luma); float lumaM = dot(rgbM, luma);
float lumaMin = min(lumaM, min(min(lumaNW, lumaNE), min(lumaSW, lumaSE))); float lumaMax = max(lumaM, max(max(lumaNW, lumaNE), max(lumaSW, lumaSE)));
vec2 dir; dir.x = -((lumaNW + lumaNE) - (lumaSW + lumaSE)); dir.y = ((lumaNW + lumaSW) - (lumaNE + lumaSE));
float dirReduce = max( (lumaNW + lumaNE + lumaSW + lumaSE) * (0.25 * FXAA_REDUCE_MUL), FXAA_REDUCE_MIN);
float rcpDirMin = 1.0/(min(abs(dir.x), abs(dir.y)) + dirReduce);
dir = min(vec2( FXAA_SPAN_MAX, FXAA_SPAN_MAX), max(vec2(-FXAA_SPAN_MAX, -FXAA_SPAN_MAX), dir * rcpDirMin)) / frameBufSize;
vec3 rgbA = (1.0/2.0) * ( texture2D(buf0, texCoords.xy + dir * (1.0/3.0 - 0.5)).xyz + texture2D(buf0, texCoords.xy + dir * (2.0/3.0 - 0.5)).xyz); vec3 rgbB = rgbA * (1.0/2.0) + (1.0/4.0) * ( texture2D(buf0, texCoords.xy + dir * (0.0/3.0 - 0.5)).xyz + texture2D(buf0, texCoords.xy + dir * (3.0/3.0 - 0.5)).xyz); float lumaB = dot(rgbB, luma);
if((lumaB < lumaMin)
|
