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@jalava
Created July 21, 2011 04:37
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private var _vertCode:String =
// move by speed´
// calculate time delta vt0 = age = time-spawnTime;
"sub vt0, vc"+time+".xxxx,va3.xxxx\n"+
// life left -> vt1 = lifeLeft = life-age;
"sub vt1, va3.yyyy, vt0.xxxx\n"+
// 1-(lifeleft/life)
"div vt1, vt1, va3\n"+
"sub vt1, vc"+ONE+", vt1\n"+
// Vertex Alpha = startalpha-((end alpha - start alpha)*lifeLeft)
// vt2 = va3.w - va3.z
"sub vt2,va3.wwww,va3.zzzz\n"+
// vt2 = vt2/vt1
"mul vt2,vt2.wwww,vt1.xxxx\n"+
// vt2 = va3.z-v2
"sub vt2, vt2.xxxx , va3.zzzz \n"+
"min vt2, vc"+ONE+", vt2\n"+
//"div vt4, "
"mul vt0, va4, vt0.xxxx \n"+
"add vt0, vt0.xyz, va0 \n"+
// Expand corners
/* "add vt0, vt2, vc[va2.x] \n" + */
"add vt0, vt0, vc[va2.x] \n" +
// Offset to place
"m44 op, vt0, vc"+mat+"\n" +
// Send color from stream 3
// "mov v0, va3 \n" +
// Texture UV
"mov v1, va1 \n"+
"mov vt2.xyz, vc"+ONE+".xyz \n"+
"mov v2, vt2 \n"+
"";
// TODO: Particle fog
private var _fragCode:String = "mov ft0, v1\n"+
"tex ft1, ft0, fs0 <2d,linear,clamp>\n"+
"mul ft1.w, ft1.w, v2.w \n"+
// "mul ft1, ft1, v0 \n"+
"mov oc, ft1\n";
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