public void vertexAttrib4fv(int indx, WebGLFloatArray values) { }
public void uniform4fv(WebGLUniformLocation location, WebGLFloatArray v) { }
public void uniformMatrix4fv(WebGLUniformLocation location, bool transpose, WebGLFloatArray value) { }
private void Initialize()
{
var gl = this.gl;
// http://cs.helsinki.fi/u/ilmarihe/metatunnel.html
// http://wakaba.c3.cx/w/puls.html
// http://www.ibiblio.org/e-notes/webgl/barkley.html
Action<string> alert = Native.window.alert;
c.style.border = "1px solid yellow";
this.prog = gl.createProgram();
gl.attachShader(prog, getShader(shader_vs, gl.VERTEX_SHADER));
gl.attachShader(prog, getShader(shader_fs, gl.FRAGMENT_SHADER));
gl.linkProgram(prog);
this.prog_show = gl.createProgram();
gl.attachShader(prog_show, getShader(shader_vs, gl.VERTEX_SHADER));
gl.attachShader(prog_show, getShader(shader_fs_show, gl.FRAGMENT_SHADER));
gl.linkProgram(prog_show);
var posBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, posBuffer);
// todo: jsc promoted float to double? :) let's revert that at the next build
var vertices = new WebGLFloatArray(new [] { -1f, -1f, 0f, 1f, -1f, 0f, -1f, 1f, 0f, 1f, 1f, 0f });
var aPosLoc = gl.getAttribLocation(prog, "aPos");
gl.enableVertexAttribArray((uint)aPosLoc);
var aTexLoc = gl.getAttribLocation(prog, "aTexCoord");
gl.enableVertexAttribArray((uint)aTexLoc);
var texCoords = new WebGLFloatArray(new [] { 0f, 0f, 1f, 0f, 0f, 1f, 1f, 1f });
var texCoordOffset = vertices.byteLength;
gl.bufferData(gl.ARRAY_BUFFER,
(int)(texCoordOffset + texCoords.byteLength), gl.STATIC_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, 0, vertices);
gl.bufferSubData(gl.ARRAY_BUFFER, (int)texCoordOffset, texCoords);
gl.vertexAttribPointer((uint)aPosLoc, 3, gl.FLOAT, false, 0, 0);
gl.vertexAttribPointer((uint)aTexLoc, 2, gl.FLOAT, false, 0, (int)texCoordOffset);
this.texture = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, texture);
gl.pixelStorei(gl.UNPACK_ALIGNMENT, 1);
var pixels = new List<byte>();
var tSize = 512;
#region why is this here below dynamic? :) jsc could optimize?
for (var i = 0; i < tSize; i++)
for (var j = 0; j < tSize; j++)
{
pixels.Add(0); pixels.Add(0);
pixels.Add(0); pixels.Add(0);
}
#endregion
for (var i = 257; i < 512; i++)
{
pixels[4 * (256 * tSize + i)] = 250;
pixels[4 * (255 * tSize + i) + 1] = 55;
}
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, tSize, tSize, 0,
gl.RGBA, gl.UNSIGNED_BYTE, new WebGLUnsignedByteArray(pixels.ToArray()));
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, (int)gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, (int)gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, (int)gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, (int)gl.CLAMP_TO_EDGE);
this.texture2 = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, texture2);
gl.pixelStorei(gl.UNPACK_ALIGNMENT, 1);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, tSize, tSize, 0,
gl.RGBA, gl.UNSIGNED_BYTE, new WebGLUnsignedByteArray(pixels.ToArray()));
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, (int)gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, (int)gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, (int)gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, (int)gl.CLAMP_TO_EDGE);
this.FBO = gl.createFramebuffer();
gl.bindFramebuffer(gl.FRAMEBUFFER, FBO);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0,
gl.TEXTURE_2D, texture, 0);
this.FBO2 = gl.createFramebuffer();
gl.bindFramebuffer(gl.FRAMEBUFFER, FBO2);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0,
gl.TEXTURE_2D, texture2, 0);
gl.useProgram(prog);
gl.uniform1f(gl.getUniformLocation(prog, "a"), a);
gl.uniform1f(gl.getUniformLocation(prog, "ba"), b / a);
gl.uniform1f(gl.getUniformLocation(prog, "dt"), dt);
gl.uniform1f(gl.getUniformLocation(prog, "dte"), dt / eps);
gl.uniform1f(gl.getUniformLocation(prog, "dth2"), dt / (h * h));
gl.uniform1i(gl.getUniformLocation(prog, "uTexSamp"), 0);
gl.useProgram(prog_show);
gl.uniform1i(gl.getUniformLocation(prog_show, "uTexSamp"), 0);
Action draw = this.draw;
draw.AtInterval(delay);
c.style.border = "1px solid green";
}
