justin/loop
1
0
Fork 0
Code Issues Pull Requests 1 Packages Projects Releases Wiki Activity

Make bloom trail last for at most one frame

Browse Source
This commit is contained in:
justin
2021-07-07 14:52:48 +02:00
parent d939ddc731
commit 5301b6d0bd
5 changed files with 27 additions and 42 deletions
Download Patch File Download Diff File Expand all files Collapse all files
shader/texture/bloomBlur.frag
+10 -4
View File
@@ -5,8 +5,8 @@ out vec4 fColor;
uniform vec2 winSize;
uniform sampler2D screenTexture;
const float hOff = 2.0 / 600;
const float vOff = 2.0 / 600;
const float hOff = 1.0 / 300;
const float vOff = 1.0 / 300;
const float frac = 1.0 / 9;
const vec2 off[9] = vec2[]
( vec2( vOff,hOff )
@@ -39,14 +39,20 @@ void main()
{
sampleTex[i] = vec4(texture(screenTexture, vTexPos + off[i]));
}
vec4 sampleFive[5];
for(int i=0; i<5; i++)
{
sampleFive[i] = vec4(texture(screenTexture, vTexPos + fiveOff[i]));
}
vec4 col = vec4(0,0,0,0);
for (int i = 0; i < 9; i++)
col = combinef(col,sampleTex[i]);
//col += sampleTex[i] * frac;
float alph = 0.0;
for (int i = 0; i < 9; i++)
alph += sampleTex[i].a;
alph = max(sampleTex[4].a, alph/9.0);
//alph += sampleTex[i].a;
alph = max(alph, 0.5 * sampleTex[i].a);
alph = max(sampleTex[4].a, alph);
//
//fColor = col;
fColor = vec4(col.rgb/col.a,alph);