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micuat 2020-10-18 15:54:25 +02:00
parent 7ebba10385
commit ab4a1b8d5a
1 changed files with 38 additions and 26 deletions
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90
zoneb/bin/data/shaders/bound.frag
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@ -14,38 +14,14 @@ uniform bool u_init;
varying vec2 v_texcoord;
float depthToSilhouette(float depth) {
if(depth < 0.005) return 0;
if(depth > 0.1) return 0;
else return 1;
}
void main() {
vec2 st = v_texcoord;
// st.y = 1.0 - st.y;
#ifdef BUFFER_0
// PING BUFFER
//
// Note: Here is where most of the action happens. But need's to read
// te content of the previous pass, for that we are making another buffer
// BUFFER_1 (u_buffer1)
vec4 color = vec4(0,0,0,1);
if(u_init) {
float tmp = texture2D(u_depth, st).r;
if(tmp > 0.005) {
color.rgb = vec3(1);
}
}
else {
vec2 pixel = 1./u_resolution;
float kernel[9];
kernel[0] = 0.125;
kernel[1] = 0.25;
kernel[2] = 0.125;
kernel[3] = 0.25;
kernel[4] = 1.0;
kernel[5] = 0.25;
kernel[6] = 0.125;
kernel[7] = 0.25;
kernel[8] = 0.125;
vec2 offset[9];
offset[0] = pixel * vec2(-1.0,-1.0);
offset[1] = pixel * vec2( 0.0,-1.0);
@ -59,15 +35,41 @@ void main() {
offset[7] = pixel * vec2( 0.0,1.0);
offset[8] = pixel * vec2( 1.0,1.0);
vec2 st = v_texcoord;
// st.y = 1.0 - st.y;
#ifdef BUFFER_0
// PING BUFFER
//
// Note: Here is where most of the action happens. But need's to read
// te content of the previous pass, for that we are making another buffer
// BUFFER_1 (u_buffer1)
vec4 color = vec4(0,0,0,1);
if(u_init) {
float tmp = texture2D(u_depth, st).r;
color.rgb = vec3(depthToSilhouette(tmp));
}
else {
float kernel[9];
kernel[0] = 0.125;
kernel[1] = 0.25;
kernel[2] = 0.125;
kernel[3] = 0.25;
kernel[4] = 1.0;
kernel[5] = 0.25;
kernel[6] = 0.125;
kernel[7] = 0.25;
kernel[8] = 0.125;
float lap = 0;
for (int i=0; i < 9; i++){
float tmp = texture2D(u_buffer1, st + offset[i]).r;
// lap += tmp * kernel[i] / 2.5;
if(tmp > 0.005) {
color.rgb = vec3(1);
}
lap += tmp * kernel[i] / 2.5;
}
color = vec4(vec3(lap * 2.0), 1.0);
}
gl_FragColor = color;
@ -81,14 +83,24 @@ void main() {
gl_FragColor = texture2D(u_buffer0, st);
#else
// Main Buffer
float buf1 = texture2D(u_buffer1, st).r;
vec3 dispColor = vec3(0, 0, 1);
dispColor.r = texture2D(u_depth, st).r > 0.005 ? 1 : 0;
dispColor.g = texture2D(u_buffer1, st).r;
dispColor.rgb = vec3(depthToSilhouette(texture2D(u_depth, st).r));
float maxVal = buf1;
float minVal = buf1;
for (int i=0; i < 9; i++){
float tmp = texture2D(u_buffer1, st + offset[i]).r;
maxVal = max(maxVal, tmp);
minVal = min(minVal, tmp);
}
if(maxVal - minVal > 0.1) {
dispColor.rgb = vec3(1);
}
// color.r = 1.;
gl_FragColor = vec4(dispColor, 1.0);
// gl_FragColor = color;
#endif
}