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-// Utilities
-var Vector3 = {};
-var Matrix44 = {};
-Vector3.create = function(x, y, z) {
-   return {'x':x, 'y':y, 'z':z};
-};
-Vector3.dot = function (v0, v1) {
-   return v0.x * v1.x + v0.y * v1.y + v0.z * v1.z;
-};
-Vector3.cross = function (v, v0, v1) {
-   v.x = v0.y * v1.z - v0.z * v1.y;
-   v.y = v0.z * v1.x - v0.x * v1.z;
-   v.z = v0.x * v1.y - v0.y * v1.x;
-};
-Vector3.normalize = function (v) {
-   var l = v.x * v.x + v.y * v.y + v.z * v.z;
-   if(l > 0.00001) {
-     l = 1.0 / Math.sqrt(l);
-     v.x *= l;
-     v.y *= l;
-     v.z *= l;
-   }
-};
-Vector3.arrayForm = function(v) {
-   if(v.array) {
-     v.array[0] = v.x;
-     v.array[1] = v.y;
-     v.array[2] = v.z;
-   }
-   else {
-     v.array = new Float32Array([v.x, v.y, v.z]);
-   }
-   return v.array;
-};
-Matrix44.createIdentity = function () {
-   return new Float32Array([1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0]);
-};
-Matrix44.loadProjection = function (m, aspect, vdeg, near, far) {
-   var h = near * Math.tan(vdeg * Math.PI / 180.0 * 0.5) * 2.0;
-   var w = h * aspect;
-   m[0] = 2.0 * near / w;
-   m[1] = 0.0;
-   m[2] = 0.0;
-   m[3] = 0.0;
-   m[4] = 0.0;
-   m[5] = 2.0 * near / h;
-   m[6] = 0.0;
-   m[7] = 0.0;
-   m[8] = 0.0;
-   m[9] = 0.0;
-   m[10] = -(far + near) / (far - near);
-   m[11] = -1.0;
-   m[12] = 0.0;
-   m[13] = 0.0;
-   m[14] = -2.0 * far * near / (far - near);
-   m[15] = 0.0;
-};
-Matrix44.loadLookAt = function (m, vpos, vlook, vup) {
-   var frontv = Vector3.create(vpos.x - vlook.x, vpos.y - vlook.y, vpos.z - vlook.z);
-   Vector3.normalize(frontv);
-   var sidev = Vector3.create(1.0, 0.0, 0.0);
-   Vector3.cross(sidev, vup, frontv);
-   Vector3.normalize(sidev);
-   var topv = Vector3.create(1.0, 0.0, 0.0);
-   Vector3.cross(topv, frontv, sidev);
-   Vector3.normalize(topv);
-   m[0] = sidev.x;
-   m[1] = topv.x;
-   m[2] = frontv.x;
-   m[3] = 0.0;
-   m[4] = sidev.y;
-   m[5] = topv.y;
-   m[6] = frontv.y;
-   m[7] = 0.0;
-   m[8] = sidev.z;
-   m[9] = topv.z;
-   m[10] = frontv.z;
-   m[11] = 0.0;
-   m[12] = -(vpos.x * m[0] + vpos.y * m[4] + vpos.z * m[8]);
-   m[13] = -(vpos.x * m[1] + vpos.y * m[5] + vpos.z * m[9]);
-   m[14] = -(vpos.x * m[2] + vpos.y * m[6] + vpos.z * m[10]);
-   m[15] = 1.0;
-};
-//
-var timeInfo = {
-   'start':0, 'prev':0, // Date
-   'delta':0, 'elapsed':0 // Number(sec)
-};
-//
-var gl;
-var renderSpec = {
-   'width':0,
-   'height':0,
-   'aspect':1,
-   'array':new Float32Array(3),
-   'halfWidth':0,
-   'halfHeight':0,
-   'halfArray':new Float32Array(3)
-   // and some render targets. see setViewport()
-};
-renderSpec.setSize = function(w, h) {
-   renderSpec.width = w;
-   renderSpec.height = h;
-   renderSpec.aspect = renderSpec.width / renderSpec.height;
-   renderSpec.array[0] = renderSpec.width;
-   renderSpec.array[1] = renderSpec.height;
-   renderSpec.array[2] = renderSpec.aspect;
-   renderSpec.halfWidth = Math.floor(w / 2);
-   renderSpec.halfHeight = Math.floor(h / 2);
-   renderSpec.halfArray[0] = renderSpec.halfWidth;
-   renderSpec.halfArray[1] = renderSpec.halfHeight;
-   renderSpec.halfArray[2] = renderSpec.halfWidth / renderSpec.halfHeight;
-};
-function deleteRenderTarget(rt) {
-   gl.deleteFramebuffer(rt.frameBuffer);
-   gl.deleteRenderbuffer(rt.renderBuffer);
-   gl.deleteTexture(rt.texture);
-}
-function createRenderTarget(w, h) {
-   var ret = {
-     'width':w,
-     'height':h,
-     'sizeArray':new Float32Array([w, h, w / h]),
-     'dtxArray':new Float32Array([1.0 / w, 1.0 / h])
-   };
-   ret.frameBuffer = gl.createFramebuffer();
-   ret.renderBuffer = gl.createRenderbuffer();
-   ret.texture = gl.createTexture();
-   gl.bindTexture(gl.TEXTURE_2D, ret.texture);
-   gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, w, h, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
-   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
-   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
-   gl.bindFramebuffer(gl.FRAMEBUFFER, ret.frameBuffer);
-   gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, ret.texture, 0);
-   gl.bindRenderbuffer(gl.RENDERBUFFER, ret.renderBuffer);
-   gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_COMPONENT16, w, h);
-   gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.RENDERBUFFER, ret.renderBuffer);
-   gl.bindTexture(gl.TEXTURE_2D, null);
-   gl.bindRenderbuffer(gl.RENDERBUFFER, null);
-   gl.bindFramebuffer(gl.FRAMEBUFFER, null);
-   return ret;
-}
-function compileShader(shtype, shsrc) {
-	var retsh = gl.createShader(shtype);
-	gl.shaderSource(retsh, shsrc);
-	gl.compileShader(retsh);
-	if(!gl.getShaderParameter(retsh, gl.COMPILE_STATUS)) {
-		var errlog = gl.getShaderInfoLog(retsh);
-		gl.deleteShader(retsh);
-		console.error(errlog);
-		return null;
-	}
-	return retsh;
-}
-function createShader(vtxsrc, frgsrc, uniformlist, attrlist) {
-   var vsh = compileShader(gl.VERTEX_SHADER, vtxsrc);
-   var fsh = compileShader(gl.FRAGMENT_SHADER, frgsrc);
-   if(vsh == null || fsh == null) {
-     return null;
-   }
-   var prog = gl.createProgram();
-   gl.attachShader(prog, vsh);
-   gl.attachShader(prog, fsh);
-   gl.deleteShader(vsh);
-   gl.deleteShader(fsh);
-   gl.linkProgram(prog);
-   if (!gl.getProgramParameter(prog, gl.LINK_STATUS)) {
-     var errlog = gl.getProgramInfoLog(prog);
-     console.error(errlog);
-     return null;
-   }
-   if(uniformlist) {
-     prog.uniforms = {};
-     for(var i = 0; i < uniformlist.length; i++) {
-       prog.uniforms[uniformlist[i]] = gl.getUniformLocation(prog, uniformlist[i]);
-     }
-   }
-   if(attrlist) {
-     prog.attributes = {};
-     for(var i = 0; i < attrlist.length; i++) {
-       var attr = attrlist[i];
-       prog.attributes[attr] = gl.getAttribLocation(prog, attr);
-     }
-   }
-   return prog;
-}
-function useShader(prog) {
-   gl.useProgram(prog);
-   for(var attr in prog.attributes) {
-     gl.enableVertexAttribArray(prog.attributes[attr]);;
-   }
-}
-function unuseShader(prog) {
-   for(var attr in prog.attributes) {
-     gl.disableVertexAttribArray(prog.attributes[attr]);;
-   }
-   gl.useProgram(null);
-}
-/
-var projection = {
-   'angle':60,
-   'nearfar':new Float32Array([0.1, 100.0]),
-   'matrix':Matrix44.createIdentity()
-};
-var camera = {
-   'position':Vector3.create(0, 0, 100),
-   'lookat':Vector3.create(0, 0, 0),
-   'up':Vector3.create(0, 1, 0),
-   'dof':Vector3.create(10.0, 4.0, 8.0),
-   'matrix':Matrix44.createIdentity()
-};
-var pointFlower = {};
-var meshFlower = {};
-var sceneStandBy = false;
-var BlossomParticle = function () {
-   this.velocity = new Array(3);
-   this.rotation = new Array(3);
-   this.position = new Array(3);
-   this.euler = new Array(3);
-   this.size = 1.0;
-   this.alpha = 1.0;
-   this.zkey = 0.0;
-};
-BlossomParticle.prototype.setVelocity = function (vx, vy, vz) {
-   this.velocity[0] = vx;
-   this.velocity[1] = vy;
-   this.velocity[2] = vz;
-};
-BlossomParticle.prototype.setRotation = function (rx, ry, rz) {
-   this.rotation[0] = rx;
-   this.rotation[1] = ry;
-   this.rotation[2] = rz;
-};
-BlossomParticle.prototype.setPosition = function (nx, ny, nz) {
-   this.position[0] = nx;
-   this.position[1] = ny;
-   this.position[2] = nz;
-};
-BlossomParticle.prototype.setEulerAngles = function (rx, ry, rz) {
-   this.euler[0] = rx;
-   this.euler[1] = ry;
-   this.euler[2] = rz;
-};
-BlossomParticle.prototype.setSize = function (s) {
-   this.size = s;
-};
-BlossomParticle.prototype.update = function (dt, et) {
-   this.position[0] += this.velocity[0] * dt;
-   this.position[1] += this.velocity[1] * dt;
-   this.position[2] += this.velocity[2] * dt;
-   this.euler[0] += this.rotation[0] * dt;
-   this.euler[1] += this.rotation[1] * dt;
-   this.euler[2] += this.rotation[2] * dt;
-};
-function createPointFlowers() {
-   // get point sizes
-   var prm = gl.getParameter(gl.ALIASED_POINT_SIZE_RANGE);
-   renderSpec.pointSize = {'min':prm[0], 'max':prm[1]};
-   var vtxsrc = document.getElementById("sakura_point_vsh").textContent;
-   var frgsrc = document.getElementById("sakura_point_fsh").textContent;
-   pointFlower.program = createShader(
-     vtxsrc, frgsrc,
-     ['uProjection', 'uModelview', 'uResolution', 'uOffset', 'uDOF', 'uFade'],
-     ['aPosition', 'aEuler', 'aMisc']
-   );
-   useShader(pointFlower.program);
-   pointFlower.offset = new Float32Array([0.0, 0.0, 0.0]);
-   pointFlower.fader = Vector3.create(0.0, 10.0, 0.0);
-   // paramerters: velocity[3], rotate[3]
-   pointFlower.numFlowers = 1600;
-   pointFlower.particles = new Array(pointFlower.numFlowers);
-   // vertex attributes {position[3], euler_xyz[3], size[1]}
-   pointFlower.dataArray = new Float32Array(pointFlower.numFlowers * (3 + 3 + 2));
-   pointFlower.positionArrayOffset = 0;
-   pointFlower.eulerArrayOffset = pointFlower.numFlowers * 3;
-   pointFlower.miscArrayOffset = pointFlower.numFlowers * 6;
-   pointFlower.buffer = gl.createBuffer();
-   gl.bindBuffer(gl.ARRAY_BUFFER, pointFlower.buffer);
-   gl.bufferData(gl.ARRAY_BUFFER, pointFlower.dataArray, gl.DYNAMIC_DRAW);
-   gl.bindBuffer(gl.ARRAY_BUFFER, null);
-   unuseShader(pointFlower.program);
-   for(var i = 0; i < pointFlower.numFlowers; i++) {
-     pointFlower.particles[i] = new BlossomParticle();
-   }
-}
-function initPointFlowers() {
-   //area
-   pointFlower.area = Vector3.create(20.0, 20.0, 20.0);
-   pointFlower.area.x = pointFlower.area.y * renderSpec.aspect;
-   pointFlower.fader.x = 10.0; //env fade start
-   pointFlower.fader.y = pointFlower.area.z; //env fade half
-   pointFlower.fader.z = 0.1;  //near fade start
-   //particles
-   var PI2 = Math.PI * 2.0;
-   var tmpv3 = Vector3.create(0, 0, 0);
-   var tmpv = 0;
-   var symmetryrand = function() {return (Math.random() * 2.0 - 1.0);};
-   for(var i = 0; i < pointFlower.numFlowers; i++) {
-     var tmpprtcl = pointFlower.particles[i];
-     //velocity
-     tmpv3.x = symmetryrand() * 0.3 + 0.8;
-     tmpv3.y = symmetryrand() * 0.2 - 1.0;
-     tmpv3.z = symmetryrand() * 0.3 + 0.5;
-     Vector3.normalize(tmpv3);
-     tmpv = 2.0 + Math.random() * 1.0;
-     tmpprtcl.setVelocity(tmpv3.x * tmpv, tmpv3.y * tmpv, tmpv3.z * tmpv);
-     //rotation
-     tmpprtcl.setRotation(
-       symmetryrand() * PI2 * 0.5,
-       symmetryrand() * PI2 * 0.5,
-       symmetryrand() * PI2 * 0.5
-     );
-     //position
-     tmpprtcl.setPosition(
-       symmetryrand() * pointFlower.area.x,
-       symmetryrand() * pointFlower.area.y,
-       symmetryrand() * pointFlower.area.z
-     );
-     //euler
-     tmpprtcl.setEulerAngles(
-       Math.random() * Math.PI * 2.0,
-       Math.random() * Math.PI * 2.0,
-       Math.random() * Math.PI * 2.0
-     );
-     //size
-     tmpprtcl.setSize(0.9 + Math.random() * 0.1);
-   }
-}
-function renderPointFlowers() {
-   //update
-   var PI2 = Math.PI * 2.0;
-   var limit = [pointFlower.area.x, pointFlower.area.y, pointFlower.area.z];
-   var repeatPos = function (prt, cmp, limit) {
-     if(Math.abs(prt.position[cmp]) - prt.size * 0.5 > limit) {
-       //out of area
-       if(prt.position[cmp] > 0) {
-         prt.position[cmp] -= limit * 2.0;
-       }
-       else {
-         prt.position[cmp] += limit * 2.0;
-       }
-     }
-   };
-   var repeatEuler = function (prt, cmp) {
-     prt.euler[cmp] = prt.euler[cmp] % PI2;
-     if(prt.euler[cmp] < 0.0) {
-       prt.euler[cmp] += PI2;
-     }
-   };
-   for(var i = 0; i < pointFlower.numFlowers; i++) {
-     var prtcl = pointFlower.particles[i];
-     prtcl.update(timeInfo.delta, timeInfo.elapsed);
-     repeatPos(prtcl, 0, pointFlower.area.x);
-     repeatPos(prtcl, 1, pointFlower.area.y);
-     repeatPos(prtcl, 2, pointFlower.area.z);
-     repeatEuler(prtcl, 0);
-     repeatEuler(prtcl, 1);
-     repeatEuler(prtcl, 2);
-     prtcl.alpha = 1.0;//(pointFlower.area.z - prtcl.position[2]) * 0.5;
-     prtcl.zkey = (camera.matrix[2] * prtcl.position[0]
-           + camera.matrix[6] * prtcl.position[1]
-           + camera.matrix[10] * prtcl.position[2]
-           + camera.matrix[14]);
-   }
-   // sort
-   pointFlower.particles.sort(function(p0, p1){return p0.zkey - p1.zkey;});
-   // update data
-   var ipos = pointFlower.positionArrayOffset;
-   var ieuler = pointFlower.eulerArrayOffset;
-   var imisc = pointFlower.miscArrayOffset;
-   for(var i = 0; i < pointFlower.numFlowers; i++) {
-     var prtcl = pointFlower.particles[i];
-     pointFlower.dataArray[ipos] = prtcl.position[0];
-     pointFlower.dataArray[ipos + 1] = prtcl.position[1];
-     pointFlower.dataArray[ipos + 2] = prtcl.position[2];
-     ipos += 3;
-     pointFlower.dataArray[ieuler] = prtcl.euler[0];
-     pointFlower.dataArray[ieuler + 1] = prtcl.euler[1];
-     pointFlower.dataArray[ieuler + 2] = prtcl.euler[2];
-     ieuler += 3;
-     pointFlower.dataArray[imisc] = prtcl.size;
-     pointFlower.dataArray[imisc + 1] = prtcl.alpha;
-     imisc += 2;
-   }
-   //draw
-   gl.enable(gl.BLEND);
-   //gl.disable(gl.DEPTH_TEST);
-   gl.blendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA);
-   var prog = pointFlower.program;
-   useShader(prog);
-   gl.uniformMatrix4fv(prog.uniforms.uProjection, false, projection.matrix);
-   gl.uniformMatrix4fv(prog.uniforms.uModelview, false, camera.matrix);
-   gl.uniform3fv(prog.uniforms.uResolution, renderSpec.array);
-   gl.uniform3fv(prog.uniforms.uDOF, Vector3.arrayForm(camera.dof));
-   gl.uniform3fv(prog.uniforms.uFade, Vector3.arrayForm(pointFlower.fader));
-   gl.bindBuffer(gl.ARRAY_BUFFER, pointFlower.buffer);
-   gl.bufferData(gl.ARRAY_BUFFER, pointFlower.dataArray, gl.DYNAMIC_DRAW);
-   gl.vertexAttribPointer(prog.attributes.aPosition, 3, gl.FLOAT, false, 0, pointFlower.positionArrayOffset * Float32Array.BYTES_PER_ELEMENT);
-   gl.vertexAttribPointer(prog.attributes.aEuler, 3, gl.FLOAT, false, 0, pointFlower.eulerArrayOffset * Float32Array.BYTES_PER_ELEMENT);
-   gl.vertexAttribPointer(prog.attributes.aMisc, 2, gl.FLOAT, false, 0, pointFlower.miscArrayOffset * Float32Array.BYTES_PER_ELEMENT);
-   // doubler
-   for(var i = 1; i < 2; i++) {
-     var zpos = i * -2.0;
-     pointFlower.offset[0] = pointFlower.area.x * -1.0;
-     pointFlower.offset[1] = pointFlower.area.y * -1.0;
-     pointFlower.offset[2] = pointFlower.area.z * zpos;
-     gl.uniform3fv(prog.uniforms.uOffset, pointFlower.offset);
-     gl.drawArrays(gl.POINT, 0, pointFlower.numFlowers);
-     pointFlower.offset[0] = pointFlower.area.x * -1.0;
-     pointFlower.offset[1] = pointFlower.area.y *  1.0;
-     pointFlower.offset[2] = pointFlower.area.z * zpos;
-     gl.uniform3fv(prog.uniforms.uOffset, pointFlower.offset);
-     gl.drawArrays(gl.POINT, 0, pointFlower.numFlowers);
-     pointFlower.offset[0] = pointFlower.area.x *  1.0;
-     pointFlower.offset[1] = pointFlower.area.y * -1.0;
-     pointFlower.offset[2] = pointFlower.area.z * zpos;
-     gl.uniform3fv(prog.uniforms.uOffset, pointFlower.offset);
-     gl.drawArrays(gl.POINT, 0, pointFlower.numFlowers);
-     pointFlower.offset[0] = pointFlower.area.x *  1.0;
-     pointFlower.offset[1] = pointFlower.area.y *  1.0;
-     pointFlower.offset[2] = pointFlower.area.z * zpos;
-     gl.uniform3fv(prog.uniforms.uOffset, pointFlower.offset);
-     gl.drawArrays(gl.POINT, 0, pointFlower.numFlowers);
-   }
-   //main
-   pointFlower.offset[0] = 0.0;
-   pointFlower.offset[1] = 0.0;
-   pointFlower.offset[2] = 0.0;
-   gl.uniform3fv(prog.uniforms.uOffset, pointFlower.offset);
-   gl.drawArrays(gl.POINT, 0, pointFlower.numFlowers);
-   gl.bindBuffer(gl.ARRAY_BUFFER, null);
-   unuseShader(prog);
-   gl.enable(gl.DEPTH_TEST);
-   gl.disable(gl.BLEND);
-}
-// effects
-//common util
-function createEffectProgram(vtxsrc, frgsrc, exunifs, exattrs) {
-   var ret = {};
-   var unifs = ['uResolution', 'uSrc', 'uDelta'];
-   if(exunifs) {
-     unifs = unifs.concat(exunifs);
-   }
-   var attrs = ['aPosition'];
-   if(exattrs) {
-     attrs = attrs.concat(exattrs);
-   }
-   ret.program = createShader(vtxsrc, frgsrc, unifs, attrs);
-   useShader(ret.program);
-   ret.dataArray = new Float32Array([
-     -1.0, -1.0,
-.0, -1.0,
-     -1.0,  1.0,
-.0,  1.0
-   ]);
-   ret.buffer = gl.createBuffer();
-   gl.bindBuffer(gl.ARRAY_BUFFER, ret.buffer);
-   gl.bufferData(gl.ARRAY_BUFFER, ret.dataArray, gl.STATIC_DRAW);
-   gl.bindBuffer(gl.ARRAY_BUFFER, null);
-   unuseShader(ret.program);
-   return ret;
-}
-// basic usage
-// useEffect(prog, srctex({'texture':texid, 'dtxArray':(f32)[dtx, dty]})); //basic initialize
-// gl.uniform**(...); //additional uniforms
-// drawEffect()
-// unuseEffect(prog)
-// TEXTURE0 makes src
-function useEffect(fxobj, srctex) {
-   var prog = fxobj.program;
-   useShader(prog);
-   gl.uniform3fv(prog.uniforms.uResolution, renderSpec.array);
-   if(srctex != null) {
-     gl.uniform2fv(prog.uniforms.uDelta, srctex.dtxArray);
-     gl.uniform1i(prog.uniforms.uSrc, 0);
-     gl.activeTexture(gl.TEXTURE0);
-     gl.bindTexture(gl.TEXTURE_2D, srctex.texture);
-   }
-}
-function drawEffect(fxobj) {
-   gl.bindBuffer(gl.ARRAY_BUFFER, fxobj.buffer);
-   gl.vertexAttribPointer(fxobj.program.attributes.aPosition, 2, gl.FLOAT, false, 0, 0);
-   gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
-}
-function unuseEffect(fxobj) {
-   unuseShader(fxobj.program);
-}
-var effectLib = {};
-function createEffectLib() {
-   var vtxsrc, frgsrc;
-   //common
-   var cmnvtxsrc = document.getElementById("fx_common_vsh").textContent;
-   //background
-   frgsrc = document.getElementById("bg_fsh").textContent;
-   effectLib.sceneBg = createEffectProgram(cmnvtxsrc, frgsrc, ['uTimes'], null);
-   // make brightpixels buffer
-   frgsrc = document.getElementById("fx_brightbuf_fsh").textContent;
-   effectLib.mkBrightBuf = createEffectProgram(cmnvtxsrc, frgsrc, null, null);
-   // direction blur
-   frgsrc = document.getElementById("fx_dirblur_r4_fsh").textContent;
-   effectLib.dirBlur = createEffectProgram(cmnvtxsrc, frgsrc, ['uBlurDir'], null);
-   //final composite
-   vtxsrc = document.getElementById("pp_final_vsh").textContent;
-   frgsrc = document.getElementById("pp_final_fsh").textContent;
-   effectLib.finalComp = createEffectProgram(vtxsrc, frgsrc, ['uBloom'], null);
-}
-// background
-function createBackground() {
-   //console.log("create background");
-}
-function initBackground() {
-   //console.log("init background");
-}
-function renderBackground() {
-   gl.disable(gl.DEPTH_TEST);
-   useEffect(effectLib.sceneBg, null);
-   gl.uniform2f(effectLib.sceneBg.program.uniforms.uTimes, timeInfo.elapsed, timeInfo.delta);
-   drawEffect(effectLib.sceneBg);
-   unuseEffect(effectLib.sceneBg);
-   gl.enable(gl.DEPTH_TEST);
-}
-// post process
-var postProcess = {};
-function createPostProcess() {
-   //console.log("create post process");
-}
-function initPostProcess() {
-   //console.log("init post process");
-}
-function renderPostProcess() {
-   gl.enable(gl.TEXTURE_2D);
-   gl.disable(gl.DEPTH_TEST);
-   var bindRT = function (rt, isclear) {
-     gl.bindFramebuffer(gl.FRAMEBUFFER, rt.frameBuffer);
-     gl.viewport(0, 0, rt.width, rt.height);
-     if(isclear) {
-       gl.clearColor(0, 0, 0, 0);
-       gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
-     }
-   };
-   //make bright buff
-   bindRT(renderSpec.wHalfRT0, true);
-   useEffect(effectLib.mkBrightBuf, renderSpec.mainRT);
-   drawEffect(effectLib.mkBrightBuf);
-   unuseEffect(effectLib.mkBrightBuf);
-   // make bloom
-   for(var i = 0; i < 2; i++) {
-     var p = 1.5 + 1 * i;
-     var s = 2.0 + 1 * i;
-     bindRT(renderSpec.wHalfRT1, true);
-     useEffect(effectLib.dirBlur, renderSpec.wHalfRT0);
-     gl.uniform4f(effectLib.dirBlur.program.uniforms.uBlurDir, p, 0.0, s, 0.0);
-     drawEffect(effectLib.dirBlur);
-     unuseEffect(effectLib.dirBlur);
-     bindRT(renderSpec.wHalfRT0, true);
-     useEffect(effectLib.dirBlur, renderSpec.wHalfRT1);
-     gl.uniform4f(effectLib.dirBlur.program.uniforms.uBlurDir, 0.0, p, 0.0, s);
-     drawEffect(effectLib.dirBlur);
-     unuseEffect(effectLib.dirBlur);
-   }
-   //display
-   gl.bindFramebuffer(gl.FRAMEBUFFER, null);
-   gl.viewport(0, 0, renderSpec.width, renderSpec.height);
-   gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
-   useEffect(effectLib.finalComp, renderSpec.mainRT);
-   gl.uniform1i(effectLib.finalComp.program.uniforms.uBloom, 1);
-   gl.activeTexture(gl.TEXTURE1);
-   gl.bindTexture(gl.TEXTURE_2D, renderSpec.wHalfRT0.texture);
-   drawEffect(effectLib.finalComp);
-   unuseEffect(effectLib.finalComp);
-   gl.enable(gl.DEPTH_TEST);
-}
-/
-var SceneEnv = {};
-function createScene() {
-   createEffectLib();
-   createBackground();
-   createPointFlowers();
-   createPostProcess();
-   sceneStandBy = true;
-}
-function initScene() {
-   initBackground();
-   initPointFlowers();
-   initPostProcess();
-   //camera.position.z = 17.320508;
-   camera.position.z = pointFlower.area.z + projection.nearfar[0];
-   projection.angle = Math.atan2(pointFlower.area.y, camera.position.z + pointFlower.area.z) * 180.0 / Math.PI * 2.0;
-   Matrix44.loadProjection(projection.matrix, renderSpec.aspect, projection.angle, projection.nearfar[0], projection.nearfar[1]);
-}
-function renderScene() {
-   //draw
-   Matrix44.loadLookAt(camera.matrix, camera.position, camera.lookat, camera.up);
-   gl.enable(gl.DEPTH_TEST);
-   //gl.bindFramebuffer(gl.FRAMEBUFFER, null);
-   gl.bindFramebuffer(gl.FRAMEBUFFER, renderSpec.mainRT.frameBuffer);
-   gl.viewport(0, 0, renderSpec.mainRT.width, renderSpec.mainRT.height);
-   gl.clearColor(0.005, 0, 0.05, 0);
-   gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
-   renderBackground();
-   renderPointFlowers();
-   renderPostProcess();
-}
-/
-function onResize(e) {
-   makeCanvasFullScreen(document.getElementById("sakura"));
-   setViewports();
-   if(sceneStandBy) {
-     initScene();
-   }
-}
-function setViewports() {
-   renderSpec.setSize(gl.canvas.width, gl.canvas.height);
-   gl.clearColor(0.2, 0.2, 0.5, 1.0);
-   gl.viewport(0, 0, renderSpec.width, renderSpec.height);
-   var rtfunc = function (rtname, rtw, rth) {
-     var rt = renderSpec[rtname];
-     if(rt) deleteRenderTarget(rt);
-     renderSpec[rtname] = createRenderTarget(rtw, rth);
-   };
-   rtfunc('mainRT', renderSpec.width, renderSpec.height);
-   rtfunc('wFullRT0', renderSpec.width, renderSpec.height);
-   rtfunc('wFullRT1', renderSpec.width, renderSpec.height);
-   rtfunc('wHalfRT0', renderSpec.halfWidth, renderSpec.halfHeight);
-   rtfunc('wHalfRT1', renderSpec.halfWidth, renderSpec.halfHeight);
-}
-function render() {
-   renderScene();
-}
-var animating = true;
-function toggleAnimation(elm) {
-   animating ^= true;
-   if(animating) animate();
-   if(elm) {
-     elm.innerHTML = animating? "Stop":"Start";
-   }
-}
-function stepAnimation() {
-   if(!animating) animate();
-}
-function animate() {
-   var curdate = new Date();
-   timeInfo.elapsed = (curdate - timeInfo.start) / 1000.0;
-   timeInfo.delta = (curdate - timeInfo.prev) / 1000.0;
-   timeInfo.prev = curdate;
-   if(animating) requestAnimationFrame(animate);
-   render();
-}
-function makeCanvasFullScreen(canvas) {
-   var b = document.body;
-	var d = document.documentElement;
-	fullw = Math.max(b.clientWidth , b.scrollWidth, d.scrollWidth, d.clientWidth);
-	fullh = Math.max(b.clientHeight , b.scrollHeight, d.scrollHeight, d.clientHeight);
-	canvas.width = fullw;
-	canvas.height = fullh;
-}
-window.addEventListener('load', function(e) {
-   var canvas = document.getElementById("sakura");
-   try {
-     makeCanvasFullScreen(canvas);
-     gl = canvas.getContext('experimental-webgl');
-   } catch(e) {
-     alert("WebGL not supported." + e);
-     console.error(e);
-     return;
-   }
-   window.addEventListener('resize', onResize);
-   setViewports();
-   createScene();
-   initScene();
-   timeInfo.start = new Date();
-   timeInfo.prev = timeInfo.start;
-   animate();
-});
-//set window.requestAnimationFrame
-(function (w, r) {
-   w['r'+r] = w['r'+r] || w['webkitR'+r] || w['mozR'+r] || w['msR'+r] || w['oR'+r] || function(c){ w.setTimeout(c, 1000 / 60); };
-})(window, 'requestAnimationFrame');

“User:残叶无影/common.js”的版本间的差异

2020年8月21日 (五) 11:27的最新版本

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