public Shader(OpenGL gl, string vertexPath, string fragmentPath)
{
string vertexCode = File.ReadAllText(vertexPath);
string fragmentCode = File.ReadAllText(fragmentPath);
// Vertex shader
uint vertexShader = gl.CreateShader(OpenGL.GL_VERTEX_SHADER);
gl.ShaderSource(vertexShader, vertexCode);
gl.CompileShader(vertexShader);
// Fragment shader
uint fragmentShader = gl.CreateShader(OpenGL.GL_FRAGMENT_SHADER);
gl.ShaderSource(fragmentShader, fragmentCode);
gl.CompileShader(fragmentShader);
// Create shader program
Program = gl.CreateProgram();
gl.AttachShader(Program, vertexShader);
gl.AttachShader(Program, fragmentShader);
gl.LinkProgram(Program);
StringBuilder logStringBuilder = new StringBuilder(512);
gl.GetProgramInfoLog(Program, 512, IntPtr.Zero, logStringBuilder);
gl.DeleteShader(vertexShader);
gl.DeleteShader(fragmentShader);
}
/// <summary>
/// Creates the shader program.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="vertexShaderSource">The vertex shader source.</param>
/// <param name="fragmentShaderSource">The fragment shader source.</param>
/// <param name="attributeLocations">The attribute locations. This is an optional array of
/// uint attribute locations to their names.</param>
/// <exception cref="ShaderCompilationException"></exception>
public void Create(OpenGL gl, string vertexShaderSource, string fragmentShaderSource, string geometryShaderSource,
Dictionary <uint, string> attributeLocations)
{
// Create the shaders.
vertexShader.Create(gl, OpenGL.GL_VERTEX_SHADER, vertexShaderSource);
fragmentShader.Create(gl, OpenGL.GL_FRAGMENT_SHADER, fragmentShaderSource);
geometryShader.Create(gl, OpenGL.GL_GEOMETRY_SHADER, geometryShaderSource);
// Create the program, attach the shaders.
shaderProgramObject = gl.CreateProgram();
gl.AttachShader(shaderProgramObject, vertexShader.ShaderObject);
gl.AttachShader(shaderProgramObject, fragmentShader.ShaderObject);
gl.AttachShader(shaderProgramObject, geometryShader.ShaderObject);
// Before we link, bind any vertex attribute locations.
if (attributeLocations != null)
{
foreach (var vertexAttributeLocation in attributeLocations)
{
gl.BindAttribLocation(shaderProgramObject, vertexAttributeLocation.Key, vertexAttributeLocation.Value);
}
}
// Now we can link the program.
gl.LinkProgram(shaderProgramObject);
// Now that we've compiled and linked the shader, check it's link status. If it's not linked properly, we're
// going to throw an exception.
if (GetLinkStatus(gl) == false)
{
throw new ShaderCompilationException(string.Format("Failed to link shader program with ID {0}.", shaderProgramObject), GetInfoLog(gl));
}
}
/// <summary>
/// Creates the shader program.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="vertexShaderSource">The vertex shader source.</param>
/// <param name="fragmentShaderSource">The fragment shader source.</param>
/// <param name="attributeLocations">The attribute locations. This is an optional array of
/// uint attribute locations to their names.</param>
/// <exception cref="ShaderCompilationException"></exception>
public void Create(OpenGL gl, string vertexShaderSource, string fragmentShaderSource,
Dictionary<uint, string> attributeLocations)
{
// Create the shaders.
vertexShader.Create(gl, OpenGL.GL_VERTEX_SHADER, vertexShaderSource);
fragmentShader.Create(gl, OpenGL.GL_FRAGMENT_SHADER, fragmentShaderSource);
// Create the program, attach the shaders.
shaderProgramObject = gl.CreateProgram();
gl.AttachShader(shaderProgramObject, vertexShader.ShaderObject);
gl.AttachShader(shaderProgramObject, fragmentShader.ShaderObject);
// Before we link, bind any vertex attribute locations.
if (attributeLocations != null)
{
foreach (var vertexAttributeLocation in attributeLocations)
gl.BindAttribLocation(shaderProgramObject, vertexAttributeLocation.Key, vertexAttributeLocation.Value);
}
// Now we can link the program.
gl.LinkProgram(shaderProgramObject);
// Now that we've compiled and linked the shader, check it's link status. If it's not linked properly, we're
// going to throw an exception.
if (GetLinkStatus(gl) == false)
{
throw new ShaderCompilationException(string.Format("Failed to link shader program with ID {0}.", shaderProgramObject), GetInfoLog(gl));
}
}
public UInt32 load()
{
//opengl program for shaders
UInt32 program = gl.CreateProgram();
//var for vertex shader
UInt32 vertex = gl.CreateShader(OpenGL.GL_VERTEX_SHADER);
//var for fragment shader
UInt32 fragment = gl.CreateShader(OpenGL.GL_FRAGMENT_SHADER);
//read shaders sorce
string vertsorce = System.IO.File.ReadAllText(m_vertPath);
string fragsorce = System.IO.File.ReadAllText(m_fragPath);
//compile vertex shader
gl.ShaderSource(vertex, vertsorce);
gl.CompileShader(vertex);
//store error
int[] result = new int[1];
//get information oof compiled shader
gl.GetShader(vertex, OpenGL.GL_COMPILE_STATUS, result);
//if compilation gives error delete shader and throw error
if (result[0] == OpenGL.GL_FALSE)
{
gl.DeleteShader(vertex);
throw (new initializing_vertex_Shader("Failed to Compile Vertex Shader"));
}
//same as up but for fragment shader
gl.ShaderSource(fragment, fragsorce);
gl.CompileShader(fragment);
int[] resultF = new int[1];
gl.GetShader(fragment, OpenGL.GL_COMPILE_STATUS, resultF);
if (result[0] == OpenGL.GL_FALSE)
{
gl.DeleteShader(fragment);
throw (new initializing_fragment_Shader("Failed to Compile fragment Shader"));
}
//attach vetex shader to opengl program
gl.AttachShader(program, vertex);
gl.AttachShader(program, fragment);
//link and validate program
gl.LinkProgram(program);
gl.ValidateProgram(program);
//free space form unuseable shaders
gl.DeleteShader(vertex);
gl.DeleteShader(fragment);
//return shader id
return(program);
}
public static uint CompileProgram(this OpenGL gl, byte[] vertexSource, byte[] fragmentSource)
{
uint vertexShaderID = gl.CompileShader(vertexSource, OpenGL.GL_VERTEX_SHADER);
uint fragmentShaderID = gl.CompileShader(fragmentSource, OpenGL.GL_FRAGMENT_SHADER);
uint programID = gl.CreateProgram();
gl.AttachShader(programID, vertexShaderID);
gl.AttachShader(programID, fragmentShaderID);
gl.DeleteShader(vertexShaderID);
gl.DeleteShader(fragmentShaderID);
gl.LinkProgram(programID);
return(programID);
}
private void openGLInv_OpenGLDraw(object sender, RenderEventArgs e)
{
// Get the OpenGL object.
OpenGL gl = openGLControl1.OpenGL;
// Clear the color and depth buffer.
gl.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT);
// Load the identity matrix.
gl.LoadIdentity();
// Rotate around the Y axis.
gl.Rotate(rotation, 0.0f, 1.0f, 0.0f);
// Draw a coloured pyramid.
gl.Begin(OpenGL.GL_TRIANGLES);
gl.Color(1.0f, 0.0f, 0.0f);
gl.Vertex(0.0f, 1.0f, 0.0f);
gl.Color(0.0f, 1.0f, 0.0f);
gl.Vertex(-1.0f, -1.0f, 1.0f);
gl.Color(0.0f, 0.0f, 1.0f);
gl.Vertex(1.0f, -1.0f, 1.0f);
gl.Color(1.0f, 0.0f, 0.0f);
gl.Vertex(0.0f, 1.0f, 0.0f);
gl.Color(0.0f, 0.0f, 1.0f);
gl.Vertex(1.0f, -1.0f, 1.0f);
gl.Color(0.0f, 1.0f, 0.0f);
gl.Vertex(1.0f, -1.0f, -1.0f);
gl.Color(1.0f, 0.0f, 0.0f);
gl.Vertex(0.0f, 1.0f, 0.0f);
gl.Color(0.0f, 1.0f, 0.0f);
gl.Vertex(1.0f, -1.0f, -1.0f);
gl.Color(0.0f, 0.0f, 1.0f);
gl.Vertex(-1.0f, -1.0f, -1.0f);
gl.Color(1.0f, 0.0f, 0.0f);
gl.Vertex(0.0f, 1.0f, 0.0f);
gl.Color(0.0f, 0.0f, 1.0f);
gl.Vertex(-1.0f, -1.0f, -1.0f);
gl.Color(0.0f, 1.0f, 0.0f);
gl.Vertex(-1.0f, -1.0f, 1.0f);
gl.Color(0.0f, 0.0f, 0.0f);
gl.Vertex(-1.0f, -1.0f, 1.0f);
gl.Color(1.0f, 0.5f, 0.0f);
gl.Vertex(1.0f, -1.0f, 1.0f);
gl.Color(1.0f, 0.0f, 1.0f);
gl.Vertex(1.0f, -1.0f, -1.0f);
gl.Color(0.0f, 0.0f, 0.0f);
gl.Vertex(-1.0f, -1.0f, 1.0f);
gl.Color(1.0f, 0.5f, 0.0f);
gl.Vertex(-1.0f, -1.0f, -1.0f);
gl.Color(1.0f, 0.0f, 1.0f);
gl.Vertex(1.0f, -1.0f, -1.0f);
gl.End();
gl.AttachShader(OpenGL.GL_FRAGMENT_SHADER, test.ShaderObject);
// Nudge the rotation.
rotation += 1.0f;
}
/// <summary>
/// Creates the program and attaches all the shaders to it.
/// </summary>
/// <param name="gl"></param>
private void CreateProgram(OpenGL gl)
{
ShaderProgramId = gl.CreateProgram();
foreach (var shader in ShaderIds)
{
gl.AttachShader(ShaderProgramId, shader.Value);
}
}
public uint Loader(string vertexShaderPath, string fragmentShaderPath)
{
// Vertex Shader
string vertexShaderSource = System.IO.File.ReadAllText(vertexShaderPath);
string fragmentShaderSource = System.IO.File.ReadAllText(fragmentShaderPath);
vertexShader = gl.CreateShader(OpenGL.GL_VERTEX_SHADER);
gl.ShaderSource(vertexShader, vertexShaderSource);
gl.CompileShader(vertexShader);
if (GetCompileStatus(gl, vertexShader) == false)
{
throw new ShaderCompilationException(string.Format("Failed to compile shader with ID {0}.", vertexShader), GetCompileInfoLog(vertexShader));
}
// Fragment Shader
fragmentShader = gl.CreateShader(OpenGL.GL_FRAGMENT_SHADER);
gl.ShaderSource(fragmentShader, fragmentShaderSource);
gl.CompileShader(fragmentShader);
if (GetCompileStatus(gl, fragmentShader) == false)
{
throw new ShaderCompilationException(string.Format("Failed to compile shader with ID {0}.", fragmentShader), GetCompileInfoLog(fragmentShader));
}
// Link shaders
shaderProgram = gl.CreateProgram();
gl.AttachShader(shaderProgram, vertexShader);
gl.AttachShader(shaderProgram, fragmentShader);
gl.LinkProgram(shaderProgram);
if (GetLinkStatus(gl) == false)
{
throw new ShaderCompilationException(string.Format("Failed to link shader program with ID {0}.", shaderProgram), GetLinkInfoLog(gl));
}
gl.DeleteShader(vertexShader);
gl.DeleteShader(fragmentShader);
return(shaderProgram);
}
public OpenGLShader(OpenGL gl, string vertexShaderPath, string fragmentShaderPath)
{
this._gl = gl;
VertexShader = CreateShader(OpenGL.GL_VERTEX_SHADER, vertexShaderPath);
FragmentShader = CreateShader(OpenGL.GL_FRAGMENT_SHADER, fragmentShaderPath);
ShaderProgram = _gl.CreateProgram();
_gl.AttachShader(ShaderProgram, VertexShader);
_gl.AttachShader(ShaderProgram, FragmentShader);
_gl.LinkProgram(ShaderProgram);
VertexLocation = (uint)_gl.GetAttribLocation(ShaderProgram, "vertexPosition");
TextureCoordLocation = (uint)_gl.GetAttribLocation(ShaderProgram, "textureCoord");
ViewportSizeUniform = _gl.GetUniformLocation(ShaderProgram, "viewportSize");
TranslationUniform = _gl.GetUniformLocation(ShaderProgram, "translation");
TransformUniform = _gl.GetUniformLocation(ShaderProgram, "transform");
PixelOffsetUniform = _gl.GetUniformLocation(ShaderProgram, "pixelOffset");
TextureSamplerUniform = _gl.GetUniformLocation(ShaderProgram, "textureSampler");
ColorUniform = _gl.GetUniformLocation(ShaderProgram, "color");
}
public void Attach()
{
//!< 作成したシェーダをアタッチ
foreach (var obj in ShaderObjectDict)
{
Device.AttachShader(ShaderLink, obj.Value);
}
//!< リンクすることでGPUで使えるようになる
Device.LinkProgram(ShaderLink);
Device.UseProgram(ShaderLink);
}
private void openGLInv_OpenGLInitialized(object sender, EventArgs e)
{
// TODO: Initialise OpenGL here.
// Get the OpenGL object.
OpenGL gl = openGLControl1.OpenGL;
// Set the clear color.
gl.ClearColor(0, 0, 0, 0);
gl.ClearColor(this.BackColor.R, this.BackColor.G, this.BackColor.B, this.BackColor.A);
test = new SharpGL.Shaders.Shader();
test.Create(gl, OpenGL.GL_FRAGMENT_SHADER, File.ReadAllText(Application.StartupPath + "/modelPreview.glsl"));
gl.AttachShader(OpenGL.GL_FRAGMENT_SHADER, test.ShaderObject);
}
private void OpenGLControl_OpenGLInitialized(object sender, EventArgs e)
{
OpenGL gl = this.openGLControl1.OpenGL;
string fragmentShaderCode = null;
using (StreamReader sr = new StreamReader(FRAGMENT_SHADER_PATH))
{
fragmentShaderCode = sr.ReadToEnd();
}
string vertexShaderCode = null;
using (StreamReader sr = new StreamReader(VERTEX_SHADER_PATH))
{
vertexShaderCode = sr.ReadToEnd();
}
_prog = new SharpGL.Shaders.ShaderProgram();
_prog.Create(gl, vertexShaderCode, fragmentShaderCode, null);
string geometryShaderCode = null;
if (File.Exists(GEOMETRY_SHADER_PATH))
{
using (StreamReader sr = new StreamReader(GEOMETRY_SHADER_PATH))
{
geometryShaderCode = sr.ReadToEnd();
}
Shader geometryShader = new Shader();
geometryShader.Create(gl, OpenGL.GL_GEOMETRY_SHADER, geometryShaderCode);
gl.AttachShader(_prog.ShaderProgramObject, geometryShader.ShaderObject);
}
gl.LinkProgram(_prog.ShaderProgramObject);
// Now that we've compiled and linked the shader, check it's link status.If it's not linked properly, we're
// going to throw an exception.
if (_prog.GetLinkStatus(gl) == false)
{
throw new SharpGL.Shaders.ShaderCompilationException(string.Format("Failed to link shader program with ID {0}.", _prog.ShaderProgramObject), _prog.GetInfoLog(gl));
}
}
// TODO: rename to createShaderProgram
private uint createProgram(uint vertexShader, uint fragmentShader)
{
uint program = OpenGL.CreateProgram();
OpenGL.AttachShader(program, vertexShader);
OpenGL.AttachShader(program, fragmentShader);
OpenGL.LinkProgram(program);
// check for linking errors
int success = 0;
byte[] infoLog = new byte[512];
OpenGL.GetProgramiv(program, OpenGL.GL_LINK_STATUS, ref success);
if (success == 0)
{
OpenGL.GetProgramInfoLog(program, infoLog.Length, IntPtr.Zero, infoLog);
string log = System.Text.Encoding.UTF8.GetString(infoLog);
throw new LinkingException(log);
}
return(program);
}
private uint CreateProgram(List <uint> shaderList)
{
uint program = gl.CreateProgram();
foreach (uint shader in shaderList)
{
gl.AttachShader(program, shader);
}
gl.LinkProgram(program);
ProgramErrorInfo(program);
foreach (uint shader in shaderList)
{
gl.DetachShader(program, shader);
}
return(program);
}
private void BuildShaders(OpenGL gl)
{
string GetCompileError(uint shaderId)
{
var compileStatus = new int[1];
gl.GetShader(shaderId, OpenGL.GL_COMPILE_STATUS, compileStatus);
if (compileStatus[0] != OpenGL.GL_TRUE)
{
var infoLogLength = new int[1];
gl.GetShader(shaderId, OpenGL.GL_INFO_LOG_LENGTH, infoLogLength);
var buffer = new System.Text.StringBuilder(infoLogLength[0]);
gl.GetShaderInfoLog(shaderId, infoLogLength[0], IntPtr.Zero, buffer);
return(buffer.ToString());
}
return(null);
}
string GetLinkError(uint progId)
{
var linkStatus = new int[1];
gl.GetProgram(progId, OpenGL.GL_LINK_STATUS, linkStatus);
if (linkStatus[0] != OpenGL.GL_TRUE)
{
var infoLogLength = new int[1];
gl.GetProgram(progId, OpenGL.GL_INFO_LOG_LENGTH, infoLogLength);
var buffer = new System.Text.StringBuilder(infoLogLength[0]);
gl.GetProgramInfoLog(progId, infoLogLength[0], IntPtr.Zero, buffer);
return(buffer.ToString());
}
return(null);
}
ShaderProgramId = gl.CreateProgram();
var vertexShader = Controller.LoadShader("vertex");
var fragmentShader = Controller.LoadShader("fragment");
uint vertexShaderId = gl.CreateShader(OpenGL.GL_VERTEX_SHADER);
uint fragmentShaderId = gl.CreateShader(OpenGL.GL_FRAGMENT_SHADER);
gl.ShaderSource(vertexShaderId, vertexShader);
gl.ShaderSource(fragmentShaderId, fragmentShader);
gl.CompileShader(vertexShaderId);
var vertexCompileError = GetCompileError(vertexShaderId);
if (vertexCompileError != null)
{
System.Windows.Forms.MessageBox.Show(vertexCompileError, "Vertex Compile Error", System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Error);
return;
}
gl.CompileShader(fragmentShaderId);
var fragmentCompileError = GetCompileError(fragmentShaderId);
if (fragmentCompileError != null)
{
System.Windows.Forms.MessageBox.Show(fragmentCompileError, "Fragment Compile Error", System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Error);
return;
}
gl.AttachShader(ShaderProgramId, vertexShaderId);
gl.AttachShader(ShaderProgramId, fragmentShaderId);
gl.LinkProgram(ShaderProgramId);
var linkError = GetLinkError(ShaderProgramId);
if (linkError != null)
{
System.Windows.Forms.MessageBox.Show(linkError, "Link Error", System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Error);
return;
}
gl.DeleteShader(vertexShaderId);
gl.DeleteShader(fragmentShaderId);
gl.UseProgram(ShaderProgramId);
ProjectMatrixLocation = gl.GetUniformLocation(ShaderProgramId, "project");
ViewMatrixLocation = gl.GetUniformLocation(ShaderProgramId, "view");
TranslateMatrixLocation = gl.GetUniformLocation(ShaderProgramId, "translate");
ScaleMatrixLocation = gl.GetUniformLocation(ShaderProgramId, "scale");
RotateMatrixLocation = gl.GetUniformLocation(ShaderProgramId, "rotate");
AmbientLightColorLocation = gl.GetUniformLocation(ShaderProgramId, "ambient_light_color");
AmbientLightPowerLocation = gl.GetUniformLocation(ShaderProgramId, "ambient_light_power");
LightSourcePositionLocation = gl.GetUniformLocation(ShaderProgramId, "light_source_position");
LightSourceColorLocation = gl.GetUniformLocation(ShaderProgramId, "light_source_color");
LightSourcePowerLocation = gl.GetUniformLocation(ShaderProgramId, "light_source_power");
EyePositionLocation = gl.GetUniformLocation(ShaderProgramId, "eye_position");
ElectrodePositionsLocation = gl.GetUniformLocation(ShaderProgramId, "electrode_positions");
ElectrodeCountLocation = gl.GetUniformLocation(ShaderProgramId, "electrode_count");
ElectrodeIndicesLocation = gl.GetUniformLocation(ShaderProgramId, "electrode_indices");
ElectrodesUsedCountLocation = gl.GetUniformLocation(ShaderProgramId, "electrodes_used_count");
ElectrodeValuesLocation = gl.GetUniformLocation(ShaderProgramId, "electrode_values");
ElectrodeMaxDistanceLocation = gl.GetUniformLocation(ShaderProgramId, "electrode_max_distance");
}
public void Initialise(OpenGL gl)
{
#region Load the main program.
string fragmentShaderCode = null;
using (StreamReader sr = new StreamReader(FRAGMENT_SHADER_PATH))
{
fragmentShaderCode = sr.ReadToEnd();
}
string vertexShaderCode = null;
using (StreamReader sr = new StreamReader(VERTEX_SHADER_PATH))
{
vertexShaderCode = sr.ReadToEnd();
}
_prog = new SharpGL.Shaders.ShaderProgram();
_prog.Create(gl, vertexShaderCode, fragmentShaderCode, null);
string geometryShaderCode = null;
if (File.Exists(GEOMETRY_SHADER_PATH))
{
using (StreamReader sr = new StreamReader(GEOMETRY_SHADER_PATH))
{
geometryShaderCode = sr.ReadToEnd();
}
Shader geometryShader = new Shader();
geometryShader.Create(gl, OpenGL.GL_GEOMETRY_SHADER, geometryShaderCode);
gl.AttachShader(_prog.ShaderProgramObject, geometryShader.ShaderObject);
}
gl.LinkProgram(_prog.ShaderProgramObject);
// Now that we've compiled and linked the shader, check it's link status.If it's not linked properly, we're
// going to throw an exception.
if (_prog.GetLinkStatus(gl) == false)
{
throw new SharpGL.Shaders.ShaderCompilationException(string.Format("Failed to link shader program with ID {0}.", _prog.ShaderProgramObject), _prog.GetInfoLog(gl));
}
#endregion
#region Load clear program.
//string clearFragShaderCode = null;
//using (StreamReader sr = new StreamReader(CLEAR_FRAGMENT_SHADER_PATH))
//{
// clearFragShaderCode = sr.ReadToEnd();
//}
//string clearVertexShaderCode = null;
//using (StreamReader sr = new StreamReader(CLEAR_VERTEX_SHADER_PATH))
//{
// clearVertexShaderCode = sr.ReadToEnd();
//}
//_clearProg = new SharpGL.Shaders.ShaderProgram();
//_clearProg.Create(gl, clearVertexShaderCode, clearFragShaderCode, null);
//gl.LinkProgram(_clearProg.ShaderProgramObject);
//// Now that we've compiled and linked the shader, check it's link status. If it's not linked properly, we're
//// going to throw an exception.
//if (_clearProg.GetLinkStatus(gl) == false)
//{
// throw new SharpGL.Shaders.ShaderCompilationException(string.Format("Failed to link the clear shader program with ID {0}.", _clearProg.ShaderProgramObject), _clearProg.GetInfoLog(gl));
//}
//_clearRectangle = new float[] { -1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 1.0f };
#endregion
}
