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Improved antialiasing / Improved outlines

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This commit is contained in:
Anuken
2019-02-26 10:42:20 -05:00
parent d05f9c5540
commit 0cb14461ba
10 changed files with 50 additions and 77 deletions
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36
core/assets/shaders/outline.fragment
View File

@ -3,7 +3,8 @@ precision mediump float;
precision mediump int;
#endif
#define SPACE 2.0
#define SPACE 1.0
#define RADIUS 3.0
uniform sampler2D u_texture;
@ -20,25 +21,16 @@ void main() {
vec4 c = texture2D(u_texture, v_texCoord.xy);
float spacing = SPACE * u_scl;
gl_FragColor = mix(c * v_color, u_color,
(1.0-step(0.001, texture2D(u_texture, v_texCoord.xy).a)) *
step(0.001,
//cardinals
texture2D(u_texture, v_texCoord.xy + vec2(0, spacing) * v).a +
texture2D(u_texture, v_texCoord.xy + vec2(0, -spacing) * v).a +
texture2D(u_texture, v_texCoord.xy + vec2(spacing, 0) * v).a +
texture2D(u_texture, v_texCoord.xy + vec2(-spacing, 0) * v).a +
//cardinal edges
texture2D(u_texture, v_texCoord.xy + vec2(spacing, spacing) * v).a +
texture2D(u_texture, v_texCoord.xy + vec2(spacing, -spacing) * v).a +
texture2D(u_texture, v_texCoord.xy + vec2(-spacing, spacing) * v).a +
texture2D(u_texture, v_texCoord.xy + vec2(-spacing, -spacing) * v).a +
//cardinals * 2
texture2D(u_texture, v_texCoord.xy + vec2(0, spacing) * v*2.0).a +
texture2D(u_texture, v_texCoord.xy + vec2(0, -spacing) * v*2.0).a +
texture2D(u_texture, v_texCoord.xy + vec2(spacing, 0) * v*2.0).a +
texture2D(u_texture, v_texCoord.xy + vec2(-spacing, 0) * v*2.0).a
));
if(c.a >= 0.001){
gl_FragColor = c * v_color;
}else{
for(float cx = -RADIUS; cx <= RADIUS; cx ++){
for(float cy = -RADIUS; cy <= RADIUS; cy ++){
if(texture2D(u_texture, v_texCoord.xy + vec2(cx, cy) * v * spacing).a >= 0.001){
gl_FragColor = u_color;
return;
}
}
}
}
}

36
core/assets/shaders/shadow.fragment
View File

@ -3,7 +3,8 @@ precision mediump float;
precision mediump int;
#endif
#define SPACE 2.0
#define SPACE 0.75
#define RADIUS 5.0
uniform sampler2D u_texture;
@ -20,25 +21,16 @@ void main() {
vec4 c = texture2D(u_texture, v_texCoord.xy);
float spacing = SPACE * u_scl;
gl_FragColor = mix(vec4(0.0, 0.0, 0.0, min(c.a, u_color.a)), u_color,
(1.0-step(0.001, texture2D(u_texture, v_texCoord.xy).a)) *
step(0.001,
//cardinals
texture2D(u_texture, v_texCoord.xy + vec2(0, spacing) * v).a +
texture2D(u_texture, v_texCoord.xy + vec2(0, -spacing) * v).a +
texture2D(u_texture, v_texCoord.xy + vec2(spacing, 0) * v).a +
texture2D(u_texture, v_texCoord.xy + vec2(-spacing, 0) * v).a +
//cardinal edges
texture2D(u_texture, v_texCoord.xy + vec2(spacing, spacing) * v).a +
texture2D(u_texture, v_texCoord.xy + vec2(spacing, -spacing) * v).a +
texture2D(u_texture, v_texCoord.xy + vec2(-spacing, spacing) * v).a +
texture2D(u_texture, v_texCoord.xy + vec2(-spacing, -spacing) * v).a +
//cardinals * 2
texture2D(u_texture, v_texCoord.xy + vec2(0, spacing) * v*2.0).a +
texture2D(u_texture, v_texCoord.xy + vec2(0, -spacing) * v*2.0).a +
texture2D(u_texture, v_texCoord.xy + vec2(spacing, 0) * v*2.0).a +
texture2D(u_texture, v_texCoord.xy + vec2(-spacing, 0) * v*2.0).a
));
if(c.a >= 0.001){
gl_FragColor = c * v_color;
}else{
for(float cx = -RADIUS; cx <= RADIUS; cx ++){
for(float cy = -RADIUS; cy <= RADIUS; cy ++){
if(cx*cx + cy*cy <= RADIUS * RADIUS && texture2D(u_texture, v_texCoord.xy + vec2(cx, cy) * v * spacing).a >= 0.001){
gl_FragColor = u_color;
return;
}
}
}
}
}