//private UniformSampler2D UniformSampler2DValue;
//private UniformSamplerCube UniformSamplerCubeValue;
public Uniform(int index, string name, uint type, WebGLUniformLocation location)
{
Index = index;
Name = name;
Type = type;
Location = location;
}
private async Task <WebGLProgram> InitProgramAsync(WebGLContext gl, string vsSource, string fsSource)
{
var vertexShader = await this.LoadShaderAsync(gl, ShaderType.VERTEX_SHADER, vsSource);
var fragmentShader = await this.LoadShaderAsync(gl, ShaderType.FRAGMENT_SHADER, fsSource);
var program = await gl.CreateProgramAsync();
await gl.AttachShaderAsync(program, vertexShader);
await gl.AttachShaderAsync(program, fragmentShader);
await gl.LinkProgramAsync(program);
await gl.DeleteShaderAsync(vertexShader);
await gl.DeleteShaderAsync(fragmentShader);
if (!await gl.GetProgramParameterAsync <bool>(program, ProgramParameter.LINK_STATUS))
{
string info = await gl.GetProgramInfoLogAsync(program);
throw new Exception("An error occured while linking the program: " + info);
}
u_matrix_location = await _context.GetUniformLocationAsync(program, "u_matrix");
return(program);
}
internal async Task UseAsync(WebGLUniformLocation uniform, int binding)
{
await _gl.ActiveTextureAsync((Blazor.Extensions.Canvas.WebGL.Texture) Enum.Parse(typeof(Blazor.Extensions.Canvas.WebGL.Texture), "TEXTURE" + binding));
await _gl.BindTextureAsync(TextureType.TEXTURE_2D, _texture);
await _gl.UniformAsync(uniform, binding);
}
public static void Init(RenderContext renderContext)
{
GL gl = renderContext.gl;
String fragShaderText =
" precision highp float; \n" +
" uniform vec4 lineColor; \n" +
" \n" +
" void main(void) { \n" +
" gl_FragColor = lineColor; \n" +
" } \n";
String vertexShaderText =
" attribute vec3 aVertexPosition; \n" +
" \n" +
" uniform mat4 uMVMatrix; \n" +
" uniform mat4 uPMatrix; \n" +
" \n" +
" \n" +
" \n" +
" void main(void) { \n" +
" gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition, 1.0); \n" +
" } \n" +
" \n";
frag = gl.createShader(GL.FRAGMENT_SHADER);
gl.shaderSource(frag, fragShaderText);
gl.compileShader(frag);
object stat = gl.getShaderParameter(frag, GL.COMPILE_STATUS);
vert = gl.createShader(GL.VERTEX_SHADER);
gl.shaderSource(vert, vertexShaderText);
gl.compileShader(vert);
object stat1 = gl.getShaderParameter(vert, GL.COMPILE_STATUS);
prog = gl.createProgram();
gl.attachShader(prog, vert);
gl.attachShader(prog, frag);
gl.linkProgram(prog);
object errcode = gl.getProgramParameter(prog, GL.LINK_STATUS);
gl.useProgram(prog);
vertLoc = gl.getAttribLocation(prog, "aVertexPosition");
lineColorLoc = gl.getUniformLocation(prog, "lineColor");
projMatLoc = gl.getUniformLocation(prog, "uPMatrix");
mvMatLoc = gl.getUniformLocation(prog, "uMVMatrix");
gl.enable(GL.BLEND);
gl.blendFunc(GL.SRC_ALPHA, GL.ONE_MINUS_SRC_ALPHA);
initialized = true;
}
public void uniform3f(WebGLUniformLocation location, double x, double y, double z)
{
#if _DEBUG
Log.Info(string.Format("uniform3f {0} {1} {2} {3}", location.Value, x, y, z));
#endif
#if GLEW_STATIC
Gl.glUniform3f((int)location.Value, (float)x, (float)y, (float)z);
#else
Gl.__glewUniform3f((int)location.Value, (float)x, (float)y, (float)z);
#endif
this.ErrorTest();
}
public void compile(WebGLRenderingContext webgl)
{
this.vs = webgl.CreateShader(webgl.VERTEX_SHADER);
this.fs = webgl.CreateShader(webgl.FRAGMENT_SHADER);
//分别编译shader
webgl.ShaderSource(this.vs, this.vscode);
webgl.CompileShader(this.vs);
var r1 = webgl.GetShaderParameter(this.vs, webgl.COMPILE_STATUS);
if (r1.As <bool>() == false)
{
alert(webgl.GetShaderInfoLog(this.vs));
}
//
webgl.ShaderSource(this.fs, this.fscode);
webgl.CompileShader(this.fs);
var r2 = webgl.GetShaderParameter(this.fs, webgl.COMPILE_STATUS);
if (r2.As <bool>() == false)
{
alert(webgl.GetShaderInfoLog(this.fs));
}
//program link
this.program = webgl.CreateProgram().As <WebGLProgram>();
webgl.AttachShader(this.program, this.vs);
webgl.AttachShader(this.program, this.fs);
webgl.LinkProgram(this.program);
var r3 = webgl.GetProgramParameter(this.program, webgl.LINK_STATUS);
if (r3.As <bool>() == false)
{
alert(webgl.GetProgramInfoLog(this.program));
}
//绑定vbo和shader顶点格式，这部分应该要区分材质改变与参数改变，可以少切换一些状态
this.posPos = webgl.GetAttribLocation(this.program, "position");
this.posColor = webgl.GetAttribLocation(this.program, "color");
this.posColor2 = webgl.GetAttribLocation(this.program, "color2");
this.posUV = webgl.GetAttribLocation(this.program, "uv");
this.uniMatrix = webgl.GetUniformLocation(this.program, "matrix");
this.uniTex0 = webgl.GetUniformLocation(this.program, "tex0");
this.uniTex1 = webgl.GetUniformLocation(this.program, "tex1");
this.uniCol0 = webgl.GetUniformLocation(this.program, "col0");
this.uniCol1 = webgl.GetUniformLocation(this.program, "col1");
}
public void uniform1i(WebGLUniformLocation location, int x)
{
#if _DEBUG
Log.Info(string.Format("uniform1i {0} {1}", location.Value, x));
#endif
#if GLEW_STATIC
Gl.glUniform1i(location.Value, x);
#else
Gl.__glewUniform1i(location.Value, x);
#endif
this.ErrorTest();
}
public static void SetUniform(ref ShaderFieldInfo field, WebGLUniformLocation location, params float[] data)
{
if (field.Scope != ShaderFieldScope.Uniform)
{
return;
}
if (location == null)
{
return;
}
switch (field.Type)
{
case ShaderFieldType.Bool:
case ShaderFieldType.Int:
int[] arrI = new int[field.ArrayLength];
for (int j = 0; j < arrI.Length; j++)
{
arrI[j] = (int)data[j];
}
GraphicsBackend.GL.Uniform1iv(location, new Span <int>(arrI));
break;
case ShaderFieldType.Float:
GraphicsBackend.GL.Uniform1fv(location, new Span <float>(data));
break;
case ShaderFieldType.Vec2:
GraphicsBackend.GL.Uniform2fv(location, new Span <float>(data));
break;
case ShaderFieldType.Vec3:
GraphicsBackend.GL.Uniform3fv(location, new Span <float>(data));
break;
case ShaderFieldType.Vec4:
GraphicsBackend.GL.Uniform4fv(location, new Span <float>(data));
break;
case ShaderFieldType.Mat2:
GraphicsBackend.GL.UniformMatrix2fv(location, false, new Span <float>(data));
break;
case ShaderFieldType.Mat3:
GraphicsBackend.GL.UniformMatrix3fv(location, false, new Span <float>(data));
break;
case ShaderFieldType.Mat4:
GraphicsBackend.GL.UniformMatrix4fv(location, false, new Span <float>(data));
break;
}
}
public void onSurfaceCreated(GL10 glUnused, javax.microedition.khronos.egl.EGLConfig config)
{
// and now we still need redux?
// Set the background clear color to gray.
gl.clearColor(0.5f, 0.5f, 0.5f, 0.5f);
// Position the eye behind the origin.
const float eyeX = 0.0f;
const float eyeY = 0.0f;
const float eyeZ = 1.5f;
// We are looking toward the distance
const float lookX = 0.0f;
const float lookY = 0.0f;
const float lookZ = -5.0f;
// Set our up vector. This is where our head would be pointing were we holding the camera.
const float upX = 0.0f;
const float upY = 1.0f;
const float upZ = 0.0f;
// Set the view matrix. This matrix can be said to represent the camera position.
// NOTE: In OpenGL 1, a ModelView matrix is used, which is a combination of a model and
// view matrix. In OpenGL 2, we can keep track of these matrices separately if we choose.
Matrix.setLookAtM(mViewMatrix, 0, eyeX, eyeY, eyeZ, lookX, lookY, lookZ, upX, upY, upZ);
// Create a program object and store the handle to it.
var programHandle = gl.createProgram(
new Shaders.TriangleVertexShader(),
new Shaders.TriangleFragmentShader()
);
gl.bindAttribLocation(programHandle, 0, "a_Position");
gl.bindAttribLocation(programHandle, 1, "a_Color");
gl.linkProgram(programHandle);
// Set program handles. These will later be used to pass in values to the program.
mMVPMatrixHandle = gl.getUniformLocation(programHandle, "u_MVPMatrix");
mPositionHandle = gl.getAttribLocation(programHandle, "a_Position");
mColorHandle = gl.getAttribLocation(programHandle, "a_Color");
// Tell OpenGL to use this program when rendering.
gl.useProgram(programHandle);
}
public void PlatformApply(GraphicsDevice device, ShaderProgram program)
{
// NOTE: We assume here the program has
// already been set on the device.
// If the program changed then lookup the
// uniform again and apply the state.
if (_shaderProgram != program)
{
var location = program.GetUniformLocation(_name);
if (location == null)
{
return;
}
_shaderProgram = program;
_location = location;
_dirty = true;
}
// If the shader program is the same, the effect may still be different and have different values in the buffer
if (!Object.ReferenceEquals(this, _lastConstantBufferApplied))
{
_dirty = true;
}
// If the buffer content hasn't changed then we're
// done... use the previously set uniform state.
if (!_dirty)
{
return;
}
// TODO: We need to know the type of buffer float/int/bool
// and cast this correctly... else it doesn't work as i guess
// GL is checking the type of the uniform.
gl.uniform4fv(_location, _buffer.As <double[]>());
GraphicsExtensions.CheckGLError();
// Clear the dirty flag.
_dirty = false;
_lastConstantBufferApplied = this;
}
public async void Build(WebGLContext gl)
{
await InitProgramAsync(gl, VertexProgramString, FragmentProgramString);
ViewProjectionLocation = await gl.GetUniformLocationAsync(ShaderProgram, "ViewProjection");
AnchorLocation = await gl.GetUniformLocationAsync(ShaderProgram, "in_anchor");
ColorLocation = await gl.GetUniformLocationAsync(ShaderProgram, "in_color");
FilpLocation = await gl.GetUniformLocationAsync(ShaderProgram, "in_flip");
ModelLocation = await gl.GetUniformLocationAsync(ShaderProgram, "in_model");
PositionAttributeLocaltion = (uint)await gl.GetAttribLocationAsync(ShaderProgram, "in_pos");
TexturePositionAttributeLocaltion = (uint)await gl.GetAttribLocationAsync(ShaderProgram, "in_texPos");
}
private void InitializeShaders()
{
WebGLProgram shaderProgram;
using (var vertexShaderStream = EmbeddedResourceHelper.Load("GLTFVertexShader.essl"))
using (var fragmentShaderStream = EmbeddedResourceHelper.Load("GLTFFragmentShader.essl"))
using (var vertexShaderReader = new StreamReader(vertexShaderStream))
using (var fragmentShaderReader = new StreamReader(fragmentShaderStream))
{
var vertexShader = vertexShaderReader.ReadToEnd();
var fragmentShader = fragmentShaderReader.ReadToEnd();
shaderProgram = gl.InitializeShaders(vertexShader, fragmentShader);
}
inVarNormalAttribute = (uint)gl.GetAttribLocation(shaderProgram, "in_var_NORMAL");
inVarPositionAttribute = (uint)gl.GetAttribLocation(shaderProgram, "in_var_POSITION");
worldViewProjectionUniformLocation = gl.GetUniformLocation(shaderProgram, "worldViewProj");
}
public void InitShaders()
{
var fragmentShader = this.GetShader(gl, "shader-fs");
var vertexShader = this.GetShader(gl, "shader-vs");
var shaderProgram = gl.CreateProgram().As <WebGLProgram>();
if (shaderProgram.Is <int>())
{
Global.Alert("Could not initialise program");
}
gl.AttachShader(shaderProgram, vertexShader);
gl.AttachShader(shaderProgram, fragmentShader);
gl.LinkProgram(shaderProgram);
if (!gl.GetProgramParameter(shaderProgram, gl.LINK_STATUS).As <bool>())
{
Global.Alert("Could not initialise shaders");
}
gl.UseProgram(shaderProgram);
this.vertexPositionAttribute = gl.GetAttribLocation(shaderProgram, "aVertexPosition");
this.vertexNormalAttribute = gl.GetAttribLocation(shaderProgram, "aVertexNormal");
this.textureCoordAttribute = gl.GetAttribLocation(shaderProgram, "aTextureCoord");
gl.EnableVertexAttribArray(this.vertexPositionAttribute);
gl.EnableVertexAttribArray(this.vertexNormalAttribute);
gl.EnableVertexAttribArray(this.textureCoordAttribute);
this.pMatrixUniform = gl.GetUniformLocation(shaderProgram, "uPMatrix");
this.mvMatrixUniform = gl.GetUniformLocation(shaderProgram, "uMVMatrix");
this.nMatrixUniform = gl.GetUniformLocation(shaderProgram, "uNMatrix");
this.samplerUniform = gl.GetUniformLocation(shaderProgram, "uSampler");
this.useLightingUniform = gl.GetUniformLocation(shaderProgram, "uUseLighting");
this.ambientColorUniform = gl.GetUniformLocation(shaderProgram, "uAmbientColor");
this.lightingDirectionUniform = gl.GetUniformLocation(shaderProgram, "uLightingDirection");
this.directionalColorUniform = gl.GetUniformLocation(shaderProgram, "uDirectionalColor");
this.alphaUniform = gl.GetUniformLocation(shaderProgram, "uAlpha");
this.program = shaderProgram;
}
public void UniformMatrix(WebGLUniformLocation location, bool transpose, float[] value)
{
switch (value.Length)
{
case 2 * 2:
this.CallMethod <object>(UNIFORM_MATRIX + "2fv", location, transpose, value);
break;
case 3 * 3:
this.CallMethod <object>(UNIFORM_MATRIX + "3fv", location, transpose, value);
break;
case 4 * 4:
this.CallMethod <object>(UNIFORM_MATRIX + "4fv", location, transpose, value);
break;
default:
throw new ArgumentOutOfRangeException(nameof(value), value.Length, "Value array has incorrect size");
}
}
public void uniformMatrix4fv(WebGLUniformLocation location, bool transpose, float[] value)
{
#if _DEBUG
Log.Info(string.Format("uniformMatrix4fv {0} {1} {2} {3} {4} {5} {6} {7} {8} {9} {10} {11} {12} {13} {14} {15} {16}", location.Value, transpose
, value[0], value[1], value[2], value[3], value[4], value[5], value[6], value[7], value[8], value[9], value[10], value[11], value[12], value[13], value[14], value[15]));
#endif
unsafe
{
fixed(float *pvalue = &value[0])
{
#if GLEW_STATIC
Gl.glUniformMatrix4fv((int)location.Value, value.Length / 16, (byte)(transpose ? 1 : 0), pvalue);
#else
Gl.__glewUniformMatrix4fv((int)location.Value, value.Length / 16, (byte)(transpose ? 1 : 0), pvalue);
#endif
}
}
this.ErrorTest();
}
protected override async Task BindDataToProgramAsync(WebGLProgram program)
{
_vertexBuffer = new GLVertexBuffer(_context, program);
await _vertexBuffer.ConsumeAndBindBufferAsync(
await ResourceLoader.LoadAsJsonAsync <VertexBufferModel>(
"BlazorFFT.Components.WebGL.JSON.BoxVertexBuffer.json"));
_vertexBuffer.ThrowIfNotValid();
_indexBuffer = new GLIndexbuffer(_context);
await _indexBuffer.ConsumeAndBindBufferAsync(
await ResourceLoader.LoadAsJsonAsync <IndexBufferModel>(
"BlazorFFT.Components.WebGL.JSON.BoxIndexBuffer.json"));
_indexBuffer.ThrowIfNotValid();
_matLocWorld = await _context.GetUniformLocationAsync(program, "mWorld");
_matLocView = await _context.GetUniformLocationAsync(program, "mView");
_matLocProj = await _context.GetUniformLocationAsync(program, "mProj");
}
public void Uniform(WebGLUniformLocation location, params int[] value)
{
switch (value.Length)
{
case 1:
this.CallMethod <object>(UNIFORM + "1iv", location, value);
break;
case 2:
this.CallMethod <object>(UNIFORM + "2iv", location, value);
break;
case 3:
this.CallMethod <object>(UNIFORM + "3iv", location, value);
break;
case 4:
this.CallMethod <object>(UNIFORM + "4iv", location, value);
break;
default:
throw new ArgumentOutOfRangeException(nameof(value), value.Length, "Value array is empty or too long");
}
}
public void uniform3f(WebGLUniformLocation location, float x, float y, float z) { }
public void uniform2f(WebGLUniformLocation location, float x, float y) { }
public void uniform1f(WebGLUniformLocation location, float x) { }
public void onDrawFrame(GL10 glUnused)
{
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
// Do a complete rotation every 10 seconds.
long time = SystemClock.uptimeMillis() % 10000L;
float angleInDegrees = (360.0f / 10000.0f) * ((int)time);
// Set our per-vertex lighting program.
gl.useProgram(mPerVertexProgramHandle);
// Set program handles for cube drawing.
mMVPMatrixHandle = gl.getUniformLocation(mPerVertexProgramHandle, "u_MVPMatrix");
mMVMatrixHandle = gl.getUniformLocation(mPerVertexProgramHandle, "u_MVMatrix");
mLightPosHandle = gl.getUniformLocation(mPerVertexProgramHandle, "u_LightPos");
mPositionHandle = gl.getAttribLocation(mPerVertexProgramHandle, "a_Position");
mColorHandle = gl.getAttribLocation(mPerVertexProgramHandle, "a_Color");
mNormalHandle = gl.getAttribLocation(mPerVertexProgramHandle, "a_Normal");
// Calculate position of the light. Rotate and then push into the distance.
Matrix.setIdentityM(mLightModelMatrix, 0);
Matrix.translateM(mLightModelMatrix, 0, 0.0f, 0.0f, -5.0f);
Matrix.rotateM(mLightModelMatrix, 0, angleInDegrees, 0.0f, 1.0f, 0.0f);
Matrix.translateM(mLightModelMatrix, 0, 0.0f, 0.0f, 2.0f);
Matrix.multiplyMV(mLightPosInWorldSpace, 0, mLightModelMatrix, 0, mLightPosInModelSpace, 0);
Matrix.multiplyMV(mLightPosInEyeSpace, 0, mViewMatrix, 0, mLightPosInWorldSpace, 0);
#region drawCube
Action drawCube =
delegate
{
// Pass in the position information
mCubePositions.position(0);
opengl.glVertexAttribPointer(mPositionHandle, mPositionDataSize, (int)gl.FLOAT, false,
0, mCubePositions);
gl.enableVertexAttribArray((uint)mPositionHandle);
// Pass in the color information
mCubeColors.position(0);
opengl.glVertexAttribPointer(mColorHandle, mColorDataSize, (int)gl.FLOAT, false,
0, mCubeColors);
gl.enableVertexAttribArray((uint)mColorHandle);
// Pass in the normal information
mCubeNormals.position(0);
opengl.glVertexAttribPointer(mNormalHandle, mNormalDataSize, (int)gl.FLOAT, false,
0, mCubeNormals);
gl.enableVertexAttribArray((uint)mNormalHandle);
// This multiplies the view matrix by the model matrix, and stores the result in the MVP matrix
// (which currently contains model * view).
Matrix.multiplyMM(mMVPMatrix, 0, mViewMatrix, 0, mModelMatrix, 0);
// Pass in the modelview matrix.
gl.uniformMatrix4fv(mMVMatrixHandle, false, mMVPMatrix);
// This multiplies the modelview matrix by the projection matrix, and stores the result in the MVP matrix
// (which now contains model * view * projection).
Matrix.multiplyMM(mMVPMatrix, 0, mProjectionMatrix, 0, mMVPMatrix, 0);
// Pass in the combined matrix.
gl.uniformMatrix4fv(mMVPMatrixHandle, false, mMVPMatrix);
// Pass in the light position in eye space.
gl.uniform3f(mLightPosHandle, mLightPosInEyeSpace[0], mLightPosInEyeSpace[1], mLightPosInEyeSpace[2]);
// Draw the cube.
gl.drawArrays(gl.TRIANGLES, 0, 36);
};
#endregion
// Draw some cubes.
Matrix.setIdentityM(mModelMatrix, 0);
Matrix.translateM(mModelMatrix, 0, 4.0f, 0.0f, -7.0f);
Matrix.rotateM(mModelMatrix, 0, angleInDegrees, 1.0f, 0.0f, 0.0f);
drawCube();
Matrix.setIdentityM(mModelMatrix, 0);
Matrix.translateM(mModelMatrix, 0, -4.0f, 0.0f, -7.0f);
Matrix.rotateM(mModelMatrix, 0, angleInDegrees, 0.0f, 1.0f, 0.0f);
drawCube();
Matrix.setIdentityM(mModelMatrix, 0);
Matrix.translateM(mModelMatrix, 0, 0.0f, 4.0f, -7.0f);
Matrix.rotateM(mModelMatrix, 0, angleInDegrees, 0.0f, 0.0f, 1.0f);
drawCube();
Matrix.setIdentityM(mModelMatrix, 0);
Matrix.translateM(mModelMatrix, 0, 0.0f, -4.0f, -7.0f);
drawCube();
Matrix.setIdentityM(mModelMatrix, 0);
Matrix.translateM(mModelMatrix, 0, 0.0f, 0.0f, -5.0f);
Matrix.rotateM(mModelMatrix, 0, angleInDegrees, 1.0f, 1.0f, 0.0f);
drawCube();
#region drawLight
Action drawLight =
delegate
{
var pointMVPMatrixHandle = gl.getUniformLocation(mPointProgramHandle, "u_MVPMatrix");
var pointPositionHandle = gl.getAttribLocation(mPointProgramHandle, "a_Position");
// Pass in the position.
gl.vertexAttrib3f((uint)pointPositionHandle, mLightPosInModelSpace[0], mLightPosInModelSpace[1], mLightPosInModelSpace[2]);
// Since we are not using a buffer object, disable vertex arrays for this attribute.
gl.disableVertexAttribArray((uint)pointPositionHandle);
// Pass in the transformation matrix.
Matrix.multiplyMM(mMVPMatrix, 0, mViewMatrix, 0, mLightModelMatrix, 0);
Matrix.multiplyMM(mMVPMatrix, 0, mProjectionMatrix, 0, mMVPMatrix, 0);
gl.uniformMatrix4fv(pointMVPMatrixHandle, false, mMVPMatrix);
// Draw the point.
gl.drawArrays(gl.POINTS, 0, 1);
};
#endregion
// Draw a point to indicate the light.
gl.useProgram(mPointProgramHandle);
drawLight();
}
public void uniformMatrix4fv(WebGLUniformLocation location, bool transpose, Float32Array array)
{
}
public void uniform4i(WebGLUniformLocation location, int x, int y, int z, int w)
{
}
public void draw(f tilt, f spin, bool twinkle, Action mvPushMatrix, Action mvPopMatrix, Float32Array mvMatrix, Action drawStar, WebGLUniformLocation shaderProgram_colorUniform, WebGLRenderingContext gl)
{
#region degToRad
Func<float, float> degToRad = (degrees) =>
{
return degrees * (f)Math.PI / 180f;
};
#endregion
mvPushMatrix();
// Move to the star's position
glMatrix.mat4.rotate(mvMatrix, degToRad(this.angle), new f[] { 0.0f, 1.0f, 0.0f });
glMatrix.mat4.translate(mvMatrix, new f[] { this.dist, 0.0f, 0.0f });
// Rotate back so that the star is facing the viewer
glMatrix.mat4.rotate(mvMatrix, degToRad(-this.angle), new f[] { 0.0f, 1.0f, 0.0f });
glMatrix.mat4.rotate(mvMatrix, degToRad(-tilt), new f[] { 1.0f, 0.0f, 0.0f });
//if (twinkle) {
// // Draw a non-rotating star in the alternate "twinkling" color
// gl.uniform3f(shaderProgram_colorUniform, this.twinkleR, this.twinkleG, this.twinkleB);
// drawStar();
//}
// All stars spin around the Z axis at the same rate
glMatrix.mat4.rotate(mvMatrix, degToRad(spin), new f[] { 0.0f, 0.0f, 1.0f });
// Draw the star in its main color
gl.uniform3f(shaderProgram_colorUniform, this.r, this.g, this.b);
drawStar();
mvPopMatrix();
}
/// <summary>
/// Assigns two dimensional integer value to a uniform variable for the current program object.
/// If the location is null, no uniforms are updated and no error code is generated.
///
/// Errors:
/// gl.INVALID_OPERATION The location doesn't belong to the current program.
/// There is no current program object.
/// If location is an invalid location for the current program object and location isn't equal to -1.
/// </summary>
/// <param name="location">The location of the uniform variable to be updated.</param>
/// <param name="x">Horizontal value to assign.</param>
/// <param name="y">Vertical value to assign.</param>
public virtual void Uniform2i(WebGLUniformLocation location, int x, int y) { }
/// <summary>
/// Assigns two dimensional floating point values to a uniform variable for the current program object.
///
/// Errors:
/// gl.INVALID_OPERATION The location doesn't belong to the current program.
/// There is no current program object.
/// If location is an invalid location for the current program object and location isn't equal to -1.
/// </summary>
/// <param name="location">The location of the uniform variable to be updated. </param>
/// <param name="x">Horizontal value to assign.</param>
/// <param name="y">Vertical value to assign.</param>
public virtual void Uniform2f(WebGLUniformLocation location, double x, double y) { }
/// <summary>
/// Assigns a boolean value to a uniform variable for the current program object.
/// Uniform1i can be used to set texture samplers. If location is a texture sampler, then value refers to an offset into the array of active textures.
///
/// Errors:
/// gl.INVALID_OPERATION The location doesn't belong to the current program.
/// There is no current program object.
/// If location is an invalid location for the current program object and location isn't equal to -1.
/// </summary>
/// <param name="location">Specifies the location of the uniform to modify.</param>
/// <param name="value">The new value for the uniform variable. </param>
public virtual void Uniform1i(WebGLUniformLocation location, bool value) { }
/// <summary>
/// Assigns a floating point value to a uniform variable for the current program object.
///
/// Errors:
/// gl.INVALID_OPERATION There's no active program object.
/// The size and type of the uniform variable doesn't match the size and type of the value loaded.
/// </summary>
/// <param name="location">The location:
/// null Data passed will fail silently, no uniform variables will be changed.
/// location Specifies the location of the uniform to modify. WebGLUniformLocation instance returned by getUniformLocation.
/// </param>
/// <param name="x">The new floating point value for the uniform variable. </param>
public virtual void Uniform1f(WebGLUniformLocation location, double x) { }
/// <summary>
/// Gets the uniform value for a specific location in a program.
///
/// Errors:
/// gl.INVALID_VALUE If program is not generated by WebGL.
///
/// gl.INVALID_OPERATION If location isn't a valid uniform variable location for program
/// If program is not a program object.
/// if program isn't successfully linked.
/// </summary>
/// <param name="program">The program to query.</param>
/// <param name="location">The location of the uniform variable.</param>
/// <returns>The uniform value or null if a WebGL error is generated.</returns>
public virtual object GetUniform(WebGLProgram program, WebGLUniformLocation location)
{
return null;
}
public void uniform4f(WebGLUniformLocation location, float x, float y, float z, float w) { }
public void uniform4fv(WebGLUniformLocation location, float[] v) { }
/// <summary>
/// Assigns four dimensional floating point values to a uniform variable for the current program object.
/// If the location is null, no uniforms are updated and no error code is generated.
///
/// Errors:
/// gl.INVALID_OPERATION The location doesn't belong to the current program.
/// There is no active program.
/// Uniform specified by location isn't a float type.
/// </summary>
/// <param name="location">The location of the uniform variable to be updated.</param>
/// <param name="x">Horizontal value to assign.</param>
/// <param name="y">Vertical value to assign.</param>
/// <param name="z">Depth value to assign.</param>
/// <param name="w">Scaling value to assign.</param>
public virtual void Uniform4f(WebGLUniformLocation location, double x, double y, double z, double w) { }
public void uniform4fv(WebGLUniformLocation location, Float32Array v)
{
}
public override void Run()
{
base.Run();
var vertices = new float[]
{
-1, -1, -1,
1, -1, -1,
1, 1, -1,
-1, 1, -1,
-1, -1, 1,
1, -1, 1,
1, 1, 1,
-1, 1, 1,
-1, -1, -1,
-1, 1, -1,
-1, 1, 1,
-1, -1, 1,
1, -1, -1,
1, 1, -1,
1, 1, 1,
1, -1, 1,
-1, -1, -1,
-1, -1, 1,
1, -1, 1,
1, -1, -1,
-1, 1, -1,
-1, 1, 1,
1, 1, 1,
1, 1, -1
};
vertexBuffer = gl.CreateArrayBuffer(vertices);
indices = new ushort[]
{
0, 1, 2,
0, 2, 3,
4, 5, 6,
4, 6, 7,
8, 9, 10,
8, 10, 11,
12, 13, 14,
12, 14, 15,
16, 17, 18,
16, 18, 19,
20, 21, 22,
20, 22, 23
};
indexBuffer = gl.CreateElementArrayBuffer(indices);
var colors = new float[]
{
1, 0, 0,
1, 0, 0,
1, 0, 0,
1, 0, 0,
0, 1, 0,
0, 1, 0,
0, 1, 0,
0, 1, 0,
0, 0, 1,
0, 0, 1,
0, 0, 1,
0, 0, 1,
1, 1, 0,
1, 1, 0,
1, 1, 0,
1, 1, 0,
0, 1, 1,
0, 1, 1,
0, 1, 1,
0, 1, 1,
1, 1, 1,
1, 1, 1,
1, 1, 1,
1, 1, 1
};
colorBuffer = gl.CreateArrayBuffer(colors);
var shaderProgram = InitShaders();
pMatrixUniform = gl.GetUniformLocation(shaderProgram, "pMatrix");
vMatrixUniform = gl.GetUniformLocation(shaderProgram, "vMatrix");
wMatrixUniform = gl.GetUniformLocation(shaderProgram, "wMatrix");
gl.BindBuffer(WebGLRenderingContextBase.ARRAY_BUFFER, vertexBuffer);
var positionAttribute = (uint)gl.GetAttribLocation(shaderProgram, "position");
gl.VertexAttribPointer(positionAttribute, 3, WebGLRenderingContextBase.FLOAT, false, 0, 0);
gl.EnableVertexAttribArray(positionAttribute);
gl.BindBuffer(WebGLRenderingContextBase.ARRAY_BUFFER, colorBuffer);
var colorAttribute = (uint)gl.GetAttribLocation(shaderProgram, "color");
gl.VertexAttribPointer(colorAttribute, 3, WebGLRenderingContextBase.FLOAT, false, 0, 0);
gl.EnableVertexAttribArray(colorAttribute);
gl.BindBuffer(WebGLRenderingContextBase.ELEMENT_ARRAY_BUFFER, indexBuffer);
worldMatrix = Matrix.Identity;
}
public void uniform4iv(WebGLUniformLocation location, Int32Array v)
{
}
public void InitShaders()
{
var fragmentShader = this.GetShader(gl, "shader-fs");
var vertexShader = this.GetShader(gl, "shader-vs");
var shaderProgram = gl.CreateProgram().As<WebGLProgram>();
if (shaderProgram.Is<int>())
{
Global.Alert("Could not initialise program");
}
gl.AttachShader(shaderProgram, vertexShader);
gl.AttachShader(shaderProgram, fragmentShader);
gl.LinkProgram(shaderProgram);
if (!gl.GetProgramParameter(shaderProgram, gl.LINK_STATUS).As<bool>())
{
Global.Alert("Could not initialise shaders");
}
gl.UseProgram(shaderProgram);
this.vertexPositionAttribute = gl.GetAttribLocation(shaderProgram, "aVertexPosition");
this.vertexNormalAttribute = gl.GetAttribLocation(shaderProgram, "aVertexNormal");
this.textureCoordAttribute = gl.GetAttribLocation(shaderProgram, "aTextureCoord");
gl.EnableVertexAttribArray(this.vertexPositionAttribute);
gl.EnableVertexAttribArray(this.vertexNormalAttribute);
gl.EnableVertexAttribArray(this.textureCoordAttribute);
this.pMatrixUniform = gl.GetUniformLocation(shaderProgram, "uPMatrix");
this.mvMatrixUniform = gl.GetUniformLocation(shaderProgram, "uMVMatrix");
this.nMatrixUniform = gl.GetUniformLocation(shaderProgram, "uNMatrix");
this.samplerUniform = gl.GetUniformLocation(shaderProgram, "uSampler");
this.useLightingUniform = gl.GetUniformLocation(shaderProgram, "uUseLighting");
this.ambientColorUniform = gl.GetUniformLocation(shaderProgram, "uAmbientColor");
this.lightingDirectionUniform = gl.GetUniformLocation(shaderProgram, "uLightingDirection");
this.directionalColorUniform = gl.GetUniformLocation(shaderProgram, "uDirectionalColor");
this.alphaUniform = gl.GetUniformLocation(shaderProgram, "uAlpha");
this.program = shaderProgram;
}
public override void Run()
{
base.Run();
var shaderProgram = gl.InitializeShaders(
vertexShaderCode:
@"attribute vec2 position;
attribute vec2 textureCoordinate;
uniform vec2 resolution;
varying vec2 v_texCoord;
void main() {
vec2 zeroToOne = position / resolution;
vec2 zeroToTwo = zeroToOne * 2.0;
vec2 clipSpace = zeroToTwo - 1.0;
gl_Position = vec4(clipSpace * vec2(1.0, -1.0), 0.0, 1.0);
v_texCoord = textureCoordinate;
}",
fragmentShaderCode:
@"precision mediump float;
uniform sampler2D u_image;
varying vec2 v_texCoord;
void main() {
gl_FragColor = texture2D(u_image, v_texCoord);
}");
var positionAttribute = (uint)gl.GetAttribLocation(shaderProgram, "position");
var textureCoordinateAttribute = (uint)gl.GetAttribLocation(shaderProgram, "textureCoordinate");
var x1 = 0;
var x2 = DemoImage.Width;
var y1 = 0;
var y2 = DemoImage.Height;
var positions = new float[]
{
x1, y1,
x2, y1,
x1, y2,
x1, y2,
x2, y1,
x2, y2
};
var positionBuffer = gl.CreateArrayBuffer(positions);
var textureCoordinateBuffer = gl.CreateArrayBuffer(new float[]
{
0, 0,
0, 1,
1, 0,
1, 0,
0, 1,
1, 1
});
var texture = gl.CreateTexture();
gl.BindTexture(WebGLRenderingContextBase.TEXTURE_2D, texture);
gl.TexParameteri(
WebGLRenderingContextBase.TEXTURE_2D,
WebGLRenderingContextBase.TEXTURE_WRAP_S,
(int)WebGLRenderingContextBase.CLAMP_TO_EDGE);
gl.TexParameteri(
WebGLRenderingContextBase.TEXTURE_2D,
WebGLRenderingContextBase.TEXTURE_WRAP_T,
(int)WebGLRenderingContextBase.CLAMP_TO_EDGE);
gl.TexParameteri(
WebGLRenderingContextBase.TEXTURE_2D,
WebGLRenderingContextBase.TEXTURE_MIN_FILTER,
(int)WebGLRenderingContextBase.NEAREST);
gl.TexParameteri(
WebGLRenderingContextBase.TEXTURE_2D,
WebGLRenderingContextBase.TEXTURE_MAG_FILTER,
(int)WebGLRenderingContextBase.NEAREST);
var imageData = new ImageData(DemoImage.ARGBColors, DemoImage.Width, DemoImage.Height);
gl.TexImage2D(
WebGLRenderingContextBase.TEXTURE_2D,
0,
WebGLRenderingContextBase.RGB,
WebGLRenderingContextBase.RGB,
WebGLRenderingContextBase.UNSIGNED_BYTE,
imageData);
this.resolutionUniform = gl.GetUniformLocation(shaderProgram, "resolution");
gl.EnableVertexAttribArray(positionAttribute);
gl.BindBuffer(WebGLRenderingContextBase.ARRAY_BUFFER, positionBuffer);
gl.VertexAttribPointer(positionAttribute, 2, WebGLRenderingContextBase.FLOAT, false, 0, 0);
gl.EnableVertexAttribArray(textureCoordinateAttribute);
gl.BindBuffer(WebGLRenderingContextBase.ARRAY_BUFFER, textureCoordinateBuffer);
gl.VertexAttribPointer(textureCoordinateAttribute, 2, WebGLRenderingContextBase.FLOAT, false, 0, 0);
}
public static void Init(RenderContext renderContext)
{
GL gl = renderContext.gl;
String fragShaderText =
" precision mediump float; \n" +
" \n" +
" varying vec2 vTextureCoord; \n" +
" \n" +
" uniform sampler2D uSampler; \n" +
" \n" +
" void main(void) { \n" +
" gl_FragColor = texture2D(uSampler, vec2(vTextureCoord.s, vTextureCoord.t)); \n" +
" } \n";
String vertexShaderText =
" attribute vec3 aVertexPosition; \n" +
" attribute vec2 aTextureCoord; \n" +
" \n" +
" uniform mat4 uMVMatrix; \n" +
" uniform mat4 uPMatrix; \n" +
" \n" +
" varying vec2 vTextureCoord; \n" +
" \n" +
" \n" +
" void main(void) { \n" +
" gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition, 1.0); \n" +
" vTextureCoord = aTextureCoord; \n" +
" } \n" +
" \n";
frag = gl.createShader(GL.FRAGMENT_SHADER);
gl.shaderSource(frag, fragShaderText);
gl.compileShader(frag);
object stat = gl.getShaderParameter(frag, GL.COMPILE_STATUS);
vert = gl.createShader(GL.VERTEX_SHADER);
gl.shaderSource(vert, vertexShaderText);
gl.compileShader(vert);
object stat1 = gl.getShaderParameter(vert, GL.COMPILE_STATUS);
prog = gl.createProgram();
gl.attachShader(prog, vert);
gl.attachShader(prog, frag);
gl.linkProgram(prog);
object errcode = gl.getProgramParameter(prog, GL.LINK_STATUS);
gl.useProgram(prog);
vertLoc = gl.getAttribLocation(prog, "aVertexPosition");
textureLoc = gl.getAttribLocation(prog, "aTextureCoord");
projMatLoc = gl.getUniformLocation(prog, "uPMatrix");
mvMatLoc = gl.getUniformLocation(prog, "uMVMatrix");
sampLoc = gl.getUniformLocation(prog, "uSampler");
Tile.uvMultiple = 1;
Tile.DemEnabled = true;
gl.enable(GL.BLEND);
gl.blendFunc(GL.SRC_ALPHA, GL.ONE_MINUS_SRC_ALPHA);
initialized = true;
}
/// <summary>
/// Assigns four dimensional floating point vector array values to a uniform variable for the current program object.
/// If the location is null, no uniforms are updated and no error code is generated.
///
/// Errors:
/// gl.INVALID_OPERATION The location doesn't belong to the current program.
/// There is no active program.
/// value references a typed array instance other than Float32Array.
/// Uniform specified by location isn't a float type.
///
/// gl.INVALID_VALUE The length of value array isn't a multiple of the number of required components.
/// </summary>
/// <param name="location">The location of the uniform variable to be updated.</param>
/// <param name="value">Four dimensional floating point array to assign.</param>
public virtual void Uniform4fv(WebGLUniformLocation location, double[][][][] value) { }
private void InitShaders()
{
// create our shaders
WebGLShader vertexShader = LoadShader(VERTEX_SHADER, @"
attribute vec4 a_position;
attribute vec4 a_color;
attribute vec2 a_texCoord0;
attribute vec2 a_texCoord1;
uniform mat4 u_mvpMatrix;
varying vec4 v_color;
varying vec2 v_texCoord0;
varying vec2 v_texCoord1;
void main()
{
gl_Position = u_mvpMatrix * a_position;
v_color = a_color;
v_texCoord0 = a_texCoord0;
v_texCoord1 = a_texCoord1;
}");
WebGLShader fragmentShader = LoadShader(FRAGMENT_SHADER, @"
#ifdef GL_ES
precision mediump float;
#endif
uniform sampler2D s_texture0;
uniform sampler2D s_texture1;
uniform int s_texEnv0;
uniform int s_texEnv1;
uniform int u_enable_texture_0;
uniform int u_enable_texture_1;
varying vec4 v_color;
varying vec2 v_texCoord0;
varying vec2 v_texCoord1;
vec4 finalColor;
void main()
{
finalColor = v_color;
if (u_enable_texture_0 == 1)
{
vec4 texel = texture2D(s_texture0, v_texCoord0);
if (s_texEnv0 == 1) {
finalColor = finalColor * texel;
} else if (s_texEnv0 == 2) {
finalColor = vec4(texel.r, texel.g, texel.b, finalColor.a);
} else {
finalColor = texel;
}
}
if (u_enable_texture_1 == 1) {
vec4 texel = texture2D(s_texture1, v_texCoord1);
if (s_texEnv1 == 1) {
finalColor = finalColor * texel;
} else if (s_texEnv1 == 2) {
finalColor = vec4(texel.r, texel.g, texel.b, finalColor.a);
} else {
finalColor = texel;
}
}
// simple alpha check
if (finalColor.a == 0.0) {
discard;
}
float gamma = 1.5;
float igamma = 1.0 / gamma;
gl_FragColor = vec4(pow(finalColor.r, igamma), pow(finalColor.g, igamma), pow(finalColor.b, igamma), finalColor.a);
}");
if ((vertexShader == null) || (fragmentShader == null))
throw new Exception("RuntimeException: shader error");
// Create the program object
WebGLProgram programObject = gl.CreateProgram();
if ((programObject == null) || (gl.GetError() != NO_ERROR))
throw new Exception("RuntimeException: program error");
// Attach our two shaders to the program
gl.AttachShader(programObject, vertexShader);
gl.AttachShader(programObject, fragmentShader);
// Bind "vPosition" to attribute 0
gl.BindAttribLocation(programObject, ARRAY_POSITION, "a_position");
gl.BindAttribLocation(programObject, ARRAY_COLOR, "a_color");
gl.BindAttribLocation(programObject, ARRAY_TEXCOORD_0, "a_texCoord0");
gl.BindAttribLocation(programObject, ARRAY_TEXCOORD_1, "a_texCoord1");
// Link the program
gl.LinkProgram(programObject);
// TODO(haustein) get position, color from the linker, too
_uMvpMatrix = gl.GetUniformLocation(programObject, "u_mvpMatrix");
_uSampler0 = gl.GetUniformLocation(programObject, "s_texture0");
_uSampler1 = gl.GetUniformLocation(programObject, "s_texture1");
_uTexEnv0 = gl.GetUniformLocation(programObject, "s_texEnv0");
_uTexEnv1 = gl.GetUniformLocation(programObject, "s_texEnv1");
_uEnableTexture0 = gl.GetUniformLocation(programObject, "u_enable_texture_0");
_uEnableTexture1 = gl.GetUniformLocation(programObject, "u_enable_texture_1");
// Check the link status
bool linked = (bool)gl.GetProgramParameter(programObject, LINK_STATUS);
if (!linked)
throw new Exception("RuntimeException: linker Error: " + gl.GetProgramInfoLog(programObject));
gl.UseProgram(programObject);
gl.Uniform1i(_uSampler0, 0);
gl.Uniform1i(_uSampler1, 1);
gl.ActiveTexture(TEXTURE0);
}
public static void Init(RenderContext renderContext)
{
GL gl = renderContext.gl;
String fragShaderText =
" precision highp float; \n" +
" uniform vec4 lineColor; \n" +
" varying lowp vec4 vColor; \n" +
" void main(void) \n" +
" { \n" +
" gl_FragColor = lineColor * vColor; \n" +
" } \n";
String vertexShaderText =
" attribute vec3 aVertexPosition; \n" +
" attribute vec4 aVertexColor; \n" +
" attribute vec2 aTime; \n" +
" uniform mat4 uMVMatrix; \n" +
" uniform mat4 uPMatrix; \n" +
" uniform float jNow; \n" +
" uniform float decay; \n" +
" \n" +
" varying lowp vec4 vColor; \n" +
" \n" +
" void main(void) \n" +
" { \n" +
" gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition, 1.0); \n" +
" float dAlpha = 1.0; \n" +
" if ( decay > 0.0) \n" +
" { \n" +
" dAlpha = 1.0 - ((jNow - aTime.y) / decay); \n " +
" if (dAlpha > 1.0 ) \n" +
" { \n" +
" dAlpha = 1.0; \n" +
" } \n" +
" } \n" +
" if (jNow < aTime.x && decay > 0.0) \n" +
" { \n" +
//" vColor = vec4(0.0, 0.0, 0.0, 0.0); \n" +
" vColor = vec4(1, 1, 1, 1); \n" +
" } \n" +
" else \n" +
" { \n" +
" vColor = vec4(aVertexColor.r, aVertexColor.g, aVertexColor.b, dAlpha * aVertexColor.a); \n" +
//" vColor = vec4(1, 1, 1, 1); \n" +
" } \n" +
" } \n" +
" \n";
frag = gl.createShader(GL.FRAGMENT_SHADER);
gl.shaderSource(frag, fragShaderText);
gl.compileShader(frag);
object stat = gl.getShaderParameter(frag, GL.COMPILE_STATUS);
vert = gl.createShader(GL.VERTEX_SHADER);
gl.shaderSource(vert, vertexShaderText);
gl.compileShader(vert);
object stat1 = gl.getShaderParameter(vert, GL.COMPILE_STATUS);
prog = gl.createProgram();
gl.attachShader(prog, vert);
gl.attachShader(prog, frag);
gl.linkProgram(prog);
object errcode = gl.getProgramParameter(prog, GL.LINK_STATUS);
gl.useProgram(prog);
vertLoc = gl.getAttribLocation(prog, "aVertexPosition");
colorLoc = gl.getAttribLocation(prog, "aVertexColor");
timeLoc = gl.getAttribLocation(prog, "aTime");
lineColorLoc = gl.getUniformLocation(prog, "lineColor");
projMatLoc = gl.getUniformLocation(prog, "uPMatrix");
mvMatLoc = gl.getUniformLocation(prog, "uMVMatrix");
jNowLoc = gl.getUniformLocation(prog, "jNow");
decayLoc = gl.getUniformLocation(prog, "decay");
gl.enable(GL.BLEND);
gl.blendFunc(GL.SRC_ALPHA, GL.ONE_MINUS_SRC_ALPHA);
initialized = true;
}
/// <summary>
/// Assigns four dimensional integer values to a uniform variable for the current program object.
/// If the location is null, no uniforms are updated and no error code is generated.
///
/// Errors:
/// gl.INVALID_OPERATION The location doesn't belong to the current program.
/// There is no active program.
/// Uniform specified by location isn't an integer type.
/// </summary>
/// <param name="location">The location of the uniform variable to be updated.</param>
/// <param name="x">Horizontal value to assign.</param>
/// <param name="y">Vertical value to assign.</param>
/// <param name="z">Depth value to assign.</param>
/// <param name="w">Scaling value to assign.</param>
public virtual void Uniform4i(WebGLUniformLocation location, int x, int y, int z, int w) { }
public static void Init(RenderContext renderContext)
{
GL gl = renderContext.gl;
String fragShaderText =
" precision mediump float; \n" +
" uniform vec4 lineColor; \n" +
" varying lowp vec4 vColor; \n" +
" uniform sampler2D uSampler; \n" +
" void main(void) \n" +
" { \n" +
" vec4 texColor; \n" +
" texColor = texture2D(uSampler, gl_PointCoord); \n" +
" \n" +
" \n" +
" gl_FragColor = lineColor * vColor * texColor; \n" +
" } \n";
String vertexShaderText =
" attribute vec3 aVertexPosition; \n" +
" attribute vec4 aVertexColor; \n" +
" attribute vec2 aTime; \n" +
" attribute float aPointSize; \n" +
" uniform mat4 uMVMatrix; \n" +
" uniform mat4 uPMatrix; \n" +
" uniform float jNow; \n" +
" uniform vec3 cameraPosition; \n" +
" uniform float decay; \n" +
" uniform float scale; \n" +
" \n" +
" varying lowp vec4 vColor; \n" +
" \n" +
" void main(void) \n" +
" { \n" +
" float dist = distance(aVertexPosition, cameraPosition); \n" +
" gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition, 1.0); \n" +
" float dAlpha = 1.0; \n" +
" if ( decay > 0.0) \n" +
" { \n" +
" dAlpha = 1.0 - ((jNow - aTime.y) / decay); \n " +
" if (dAlpha > 1.0 ) \n" +
" { \n" +
" dAlpha = 1.0; \n" +
" } \n" +
" } \n" +
" if (jNow < aTime.x && decay > 0.0) \n" +
" { \n" +
" vColor = vec4(0.0, 0.0, 0.0, 0.0); \n" +
" } \n" +
" else \n" +
" { \n" +
// " vColor = vec4(aVertexColor.r, aVertexColor.g, aVertexColor.b, dAlpha); \n" +
" vColor = vec4(1,1,1,1); \n" +
" } \n" +
" gl_PointSize = max(1.0, (scale * ( aPointSize ) / dist)); \n" +
" } \n" +
" \n";
frag = gl.createShader(GL.FRAGMENT_SHADER);
gl.shaderSource(frag, fragShaderText);
gl.compileShader(frag);
object stat = gl.getShaderParameter(frag, GL.COMPILE_STATUS);
vert = gl.createShader(GL.VERTEX_SHADER);
gl.shaderSource(vert, vertexShaderText);
gl.compileShader(vert);
object stat1 = gl.getShaderParameter(vert, GL.COMPILE_STATUS);
object compilationLog = gl.getShaderInfoLog(vert);
prog = gl.createProgram();
gl.attachShader(prog, vert);
gl.attachShader(prog, frag);
gl.linkProgram(prog);
object errcode = gl.getProgramParameter(prog, GL.LINK_STATUS);
gl.useProgram(prog);
vertLoc = gl.getAttribLocation(prog, "aVertexPosition");
colorLoc = gl.getAttribLocation(prog, "aVertexColor");
pointSizeLoc = gl.getAttribLocation(prog, "aPointSize");
timeLoc = gl.getAttribLocation(prog, "aTime");
projMatLoc = gl.getUniformLocation(prog, "uPMatrix");
mvMatLoc = gl.getUniformLocation(prog, "uMVMatrix");
sampLoc = gl.getUniformLocation(prog, "uSampler");
jNowLoc = gl.getUniformLocation(prog, "jNow");
decayLoc = gl.getUniformLocation(prog, "decay");
lineColorLoc = gl.getUniformLocation(prog, "lineColor");
cameraPosLoc = gl.getUniformLocation(prog, "cameraPosition");
scaleLoc = gl.getUniformLocation(prog, "scale");
gl.enable(GL.BLEND);
initialized = true;
}
/// <summary>
/// Assigns four dimensional integer vector array values to a uniform variable for the current program object.
/// If the location is null, no uniforms are updated and no error code is generated.
///
/// Errors:
/// gl.INVALID_OPERATION The location doesn't belong to the current program.
/// There is no active program.
/// value references a typed array instance other than Int32Array.
/// Uniform specified by location isn't an integer type.
///
/// gl.INVALID_VALUE The length of value array isn't a multiple of the number of required components.
/// </summary>
/// <param name="location">The location of the uniform variable to be updated.</param>
/// <param name="value">Four dimensional integer array to assign.</param>
public virtual void Uniform4iv(WebGLUniformLocation location, int[][][][] value) { }
public object getUniform(WebGLProgram program, WebGLUniformLocation location) { return default(object); }
/// <summary>
/// Sets values for a 4x4 floating point vector matrix into a uniform location as a matrix or a matrix array.
/// If the location is null, no uniforms are updated and no error code is generated.
///
/// Errors:
/// gl.INVALID_OPERATION The location doesn't belong to the current program.
/// There is no active program.
/// The passed in uniform location isn't a matrix of the required dimensions.
///
/// gl.INVALID_VALUE The length of value array isn't a multiple of the required matrix element count.
/// If transpose equals gl.TRUE.
/// </summary>
/// <param name="location">The location of uniform variable to be updated. Locate set by getUniformLocation.</param>
/// <param name="transpose">Sets whether to transpose the matrix as the values are loaded into the uniform variable. Must be set to gl.FALSE.</param>
/// <param name="value">An array of float values representing one or more 3x3 matrices.</param>
public virtual void UniformMatrix4fv(WebGLUniformLocation location, bool transpose, Array value) { }
public void uniform1i(WebGLUniformLocation location, int x) { }
public void uniform4iv(WebGLUniformLocation location, WebGLIntArray v) { }
public void uniform2i(WebGLUniformLocation location, int x, int y) { }
public void uniformMatrix4fv(WebGLUniformLocation location, bool transpose, WebGLFloatArray value) { }
public void uniform3i(WebGLUniformLocation location, int x, int y, int z) { }
public void uniform3i(WebGLUniformLocation location, int x, int y, int z)
{
}
public void uniform4fv(WebGLUniformLocation location, WebGLFloatArray v) { }
public void uniform4f(WebGLUniformLocation location, double x, double y, double z, double w)
{
}
public void uniform4i(WebGLUniformLocation location, int x, int y, int z, int w) { }
public void UniformMatrix4fv(WebGLUniformLocation location, bool transpose, Float32Array array) { }
public void uniform4iv(WebGLUniformLocation location, int[] v) { }
public void uniform2i(WebGLUniformLocation location, int x, int y)
{
}
public void uniformMatrix4fv(WebGLUniformLocation location, bool transpose, float[] value) { }
public void uniform3f(WebGLUniformLocation location, double x, double y, double z)
{
}