80486DX2-66/taisei
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Improved shader performance

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(hopefully)
This commit is contained in:
laochailan 2012-07-21 18:07:36 +02:00
parent ef03e87306
commit 040dd5f3ba
3 changed files with 9 additions and 22 deletions
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4
shader/alpha_depth.sha
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@ -13,8 +13,8 @@ void main(void) {
uniform sampler2D tex;
void main(void) {
vec4 clr = texture2D(tex, vec2(gl_TexCoord[0].xy));
vec4 clr = texture2D(tex, gl_TexCoord[0].xy);
gl_FragColor = vec4(0.1,0.0,0.07,1.0);
gl_FragDepth = 0.5*gl_FragCoord.z/clr.a;
gl_FragDepth = 0.5*gl_FragCoord.z/clr.a;
}

21
shader/bloom.sha
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@ -13,25 +13,14 @@ void main(void) {
uniform sampler2D tex;
uniform float intensity;
float pi = 2.0 * asin(1.0);
void main(void) {
vec2 pos = vec2(gl_TexCoord[0]);
float a;
float i = 0.0;
vec4 sum = vec4(0.0), c;
vec4 sum = vec4(0.0);
for(a = 0.0; a <= 2.0*pi; a+=0.6) {
c = texture2D(tex, pos + vec2(cos(a),sin(a))*0.01);
if(c != vec4(0.0)) {
sum += c;
i++;
}
}
for(int a = 0; a < 10; a++) {
sum += texture2D(tex, pos + vec2(cos(0.628*float(a)),sin(0.628*float(a)))*0.03);;
}
gl_FragColor = texture2D(tex, pos) + intensity*sum*sum/i;
// gl_FragColor = texture2D(tex, pos);
gl_FragColor = texture2D(tex, pos) + intensity*sum*sum/10.0;
}

6
shader/boss_zoom.sha
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@ -24,14 +24,12 @@ void main(void) {
vec2 pos1 = pos;
pos1.y *= ratio;
if(length(pos1) < blur_rad)
pos *= length(pos1)/blur_rad;
pos *= min(length(pos1)/blur_rad,1.0);
gl_FragColor = texture2D(tex, pos + blur_orig);
pos1 = vec2(gl_TexCoord[0]) - fix_orig;
pos1.y *= ratio;
if(length(pos1) < rad)
gl_FragColor *= pow(vec4(0.1,0.2,0.3,1),vec4(3.0*(rad - length(pos1))));
gl_FragColor *= pow(vec4(0.1,0.2,0.3,1),vec4(3.0*max(0.0,rad - length(pos1))));
}