public FlatShader(OpenGL gl)
: base(gl)
{
_program = new ShaderProgram();
var vertex = new VertexShader();
var fragment = new FragmentShader();
vertex.CreateInContext(gl);
vertex.SetSource(File.ReadAllText("Shaders/Flat.vert.glsl"));
vertex.Compile();
fragment.CreateInContext(gl);
fragment.SetSource(File.ReadAllText("Shaders/Flat.frag.glsl"));
fragment.Compile();
_program.CreateInContext(gl);
_program.AttachShader(vertex);
_program.AttachShader(fragment);
_program.Link();
Debug.WriteLine(_program.InfoLog);
foreach (var attachedShader in _program.AttachedShaders)
{
Debug.WriteLine(attachedShader.InfoLog);
}
}
public OctreeShader(OpenGL gl) : base(gl)
{
_program = new ShaderProgram();
var vertex = new VertexShader();
var fragment = new FragmentShader();
var geo = new GeometryShader();
vertex.CreateInContext(gl);
vertex.SetSource(File.ReadAllText("Shaders/Octree.vert.glsl"));
vertex.Compile();
fragment.CreateInContext(gl);
fragment.SetSource(File.ReadAllText("Shaders/Octree.frag.glsl"));
fragment.Compile();
geo.CreateInContext(gl);
geo.SetSource(File.ReadAllText("Shaders/Octree.geo.glsl"));
geo.Compile();
_program.CreateInContext(gl);
_program.AttachShader(vertex);
_program.AttachShader(fragment);
_program.AttachShader(geo);
_program.Link();
Debug.WriteLine(_program.InfoLog);
foreach (var attachedShader in _program.AttachedShaders)
{
Debug.WriteLine(attachedShader.InfoLog);
}
_modelLocation = gl.GetUniformLocation(_program.ProgramObject, "Model");
_viewLocation = gl.GetUniformLocation(_program.ProgramObject, "View");
_projectionLocation = gl.GetUniformLocation(_program.ProgramObject, "Projection");
}
private void OpenGLControl_OpenGLInitialized(object sender, SharpGL.SceneGraph.OpenGLEventArgs args)
{
OpenGL gl = args.OpenGL;
gl.Enable(OpenGL.GL_DEPTH_TEST);
float[] global_ambient = new float[] { 0.5f, 0.5f, 0.5f, 1.0f };
float[] light0pos = new float[] { 0.0f, 5.0f, 10.0f, 1.0f };
float[] light0ambient = new float[] { 0.2f, 0.2f, 0.2f, 1.0f };
float[] light0diffuse = new float[] { 0.3f, 0.3f, 0.3f, 1.0f };
float[] light0specular = new float[] { 0.8f, 0.8f, 0.8f, 1.0f };
float[] lmodel_ambient = new float[] { 0.2f, 0.2f, 0.2f, 1.0f };
gl.LightModel(OpenGL.GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
gl.LightModel(OpenGL.GL_LIGHT_MODEL_AMBIENT, global_ambient);
gl.Light(OpenGL.GL_LIGHT0, OpenGL.GL_POSITION, light0pos);
gl.Light(OpenGL.GL_LIGHT0, OpenGL.GL_AMBIENT, light0ambient);
gl.Light(OpenGL.GL_LIGHT0, OpenGL.GL_DIFFUSE, light0diffuse);
gl.Light(OpenGL.GL_LIGHT0, OpenGL.GL_SPECULAR, light0specular);
gl.Enable(OpenGL.GL_LIGHTING);
gl.Enable(OpenGL.GL_LIGHT0);
gl.ShadeModel(OpenGL.GL_SMOOTH);
// Create a vertex shader.
VertexShader vertexShader = new VertexShader();
vertexShader.CreateInContext(gl);
vertexShader.SetSource(
"void main()" + Environment.NewLine +
"{" + Environment.NewLine +
"gl_Position = ftransform();" + Environment.NewLine +
"}" + Environment.NewLine);
// Create a fragment shader.
FragmentShader fragmentShader = new FragmentShader();
fragmentShader.CreateInContext(gl);
fragmentShader.SetSource(
"void main()" + Environment.NewLine +
"{" + Environment.NewLine +
"gl_FragColor = vec4(0.4,0.4,0.8,1.0);" + Environment.NewLine +
"}" + Environment.NewLine);
// Compile them both.
vertexShader.Compile();
fragmentShader.Compile();
// Build a program.
program.CreateInContext(gl);
// Attach the shaders.
program.AttachShader(vertexShader);
program.AttachShader(fragmentShader);
program.Link();
}
public static ShaderProgram CreateSpriteShaderProgram(RenderContext renderContext, string label = "Sprite ShaderProgram")
{
VertexShader vertexShader = new VertexShader(renderContext,
@"#version 330 core
layout (location = 0) in vec2 aPos;
layout (location = 1) in vec2 aTexCoord;
layout (location = 2) in vec4 aColor;
out vec2 TexCoord;
out vec4 Color;
uniform mat4 projection;
uniform mat4 transform;
void main()
{
gl_Position = projection * transform * vec4(aPos, 0.0, 1.0);
TexCoord = aTexCoord;
Color = aColor;
}");
FragmentShader fragmentShader = new FragmentShader(renderContext,
@"#version 330 core
out vec4 FragColor;
in vec2 TexCoord;
in vec4 Color;
uniform sampler2D texture0;
void main()
{
FragColor = texture(texture0, TexCoord) * Color;
}");
ShaderProgram shaderProgram = new ShaderProgram(renderContext);
shaderProgram.AttachShader(vertexShader);
shaderProgram.AttachShader(fragmentShader);
shaderProgram.Link();
shaderProgram.DetachShader(vertexShader);
shaderProgram.DetachShader(fragmentShader);
vertexShader.Dispose();
fragmentShader.Dispose();
shaderProgram.Label = label;
return(shaderProgram);
}
public static ShaderProgram CreateAtlasFlippingProgram(RenderContext renderContext)
{
VertexShader vertexShader = new VertexShader(renderContext,
@"#version 330 core
layout (location = 0) in vec2 aPos;
layout (location = 1) in vec2 aTexCoord;
out vec2 TexCoord;
uniform mat4 projection;
void main()
{
gl_Position = projection * vec4(aPos, 1.0, 1.0);
TexCoord = aTexCoord;
}");
FragmentShader fragmentShader = new FragmentShader(renderContext,
@"#version 330 core
out vec4 FragColor;
in vec2 TexCoord;
uniform sampler2D texture0;
void main()
{
vec4 samp = vec4(1.0, 1.0, 1.0, texture(texture0, TexCoord).a);
FragColor = samp;
}");
ShaderProgram shaderProgram = new ShaderProgram(renderContext);
shaderProgram.AttachShader(vertexShader);
shaderProgram.AttachShader(fragmentShader);
shaderProgram.Link();
shaderProgram.DetachShader(vertexShader);
shaderProgram.DetachShader(fragmentShader);
vertexShader.Dispose();
fragmentShader.Dispose();
shaderProgram.Label = "Font Import ShaderProgram";
return(shaderProgram);
}
public static void CompileShadersHotReload(OpenGL gl)
{
foreach (var name in shaderNames)
{
bool vertChanged = ResourceLoader.LoadTextFileIfChanged($"Shaders\\{name}.vert", out var vert);
bool fragChanged = ResourceLoader.LoadTextFileIfChanged($"Shaders\\{name}.frag", out var frag);
if (vertChanged || fragChanged)
{
string shaderError = "";
ShaderProgram program = new ShaderProgram();
// Create a vertex shader.
VertexShader vertexShader = new VertexShader();
vertexShader.CreateInContext(gl);
vertexShader.SetSource(vert);
// Create a fragment shader.
FragmentShader fragmentShader = new FragmentShader();
fragmentShader.CreateInContext(gl);
fragmentShader.SetSource(frag);
// Compile them both.
vertexShader.Compile();
fragmentShader.Compile();
if ((bool)!vertexShader.CompileStatus)
{
shaderError += $"{name}.vert: " + vertexShader.InfoLog + "\n\n";
}
if ((bool)!fragmentShader.CompileStatus)
{
shaderError += $"{name}.frag: " + fragmentShader.InfoLog;
}
// Build a program.
program.CreateInContext(gl);
// Attach the shaders.
program.AttachShader(vertexShader);
program.AttachShader(fragmentShader);
program.Link();
programs[name] = program;
shaderErrors[name] = shaderError;
}
}
}
public ShaderBindable(OpenGL gl, Func <string, Shader> typeDetector, params string[] files)
{
_gl = gl;
if (typeDetector == null)
{
throw new ArgumentNullException("typeDetector");
}
_program = new ShaderProgram();
_program.CreateInContext(gl);
foreach (var file in files)
{
var shader = typeDetector(file);
shader.CreateInContext(gl);
shader.SetSource(File.ReadAllText(file));
shader.Compile();
_program.AttachShader(shader);
}
_program.Link();
if (_program.LinkStatus != null && !(bool)_program.LinkStatus)
{
throw new Exception(_program.InfoLog);
}
foreach (var attachedShader in _program.AttachedShaders.Where(attachedShader => attachedShader.CompileStatus != null && !(bool)attachedShader.CompileStatus))
{
throw new Exception(attachedShader.InfoLog);
}
Uniforms = new DynamicUniforms(_gl, _program);
}
public static ShaderProgram CreateLineShaderProgram(RenderContext renderContext, string label = "Line ShaderProgram")
{
VertexShader vertexShader = new VertexShader(renderContext,
@"#version 330 core
layout (location = 0) in vec2 aPos;
layout (location = 1) in vec4 aColor;
out vec4 Color;
uniform mat4 projection;
void main()
{
gl_Position = projection * vec4(aPos, 1.0, 1.0);
Color = aColor;
}");
FragmentShader fragmentShader = new FragmentShader(renderContext,
@"#version 330 core
out vec4 FragColor;
in vec4 Color;
void main()
{
FragColor = Color;
}");
ShaderProgram shaderProgram = new ShaderProgram(renderContext);
shaderProgram.AttachShader(vertexShader);
shaderProgram.AttachShader(fragmentShader);
shaderProgram.Link();
shaderProgram.DetachShader(vertexShader);
shaderProgram.DetachShader(fragmentShader);
vertexShader.Dispose();
fragmentShader.Dispose();
shaderProgram.Label = label;
return(shaderProgram);
}
/// <summary>
/// Allocate an instance of the type.
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> used for allocating the instance.
/// </param>
/// <returns>
/// It returns an instance of a specific type.
/// </returns>
public override object Allocate(GraphicsContext ctx)
{
ShaderProgram shaderProgram = new ShaderProgram("TestProgram");
ShaderObject vertexShaderObject = new ShaderObject(ShaderStage.Vertex);
vertexShaderObject.LoadSource(VertexShaderSource);
ShaderObject fragmentShaderObject = new ShaderObject(ShaderStage.Fragment);
fragmentShaderObject.LoadSource(FragmentShaderSource);
shaderProgram.AttachShader(vertexShaderObject);
shaderProgram.AttachShader(fragmentShaderObject);
return(shaderProgram);
}
/// <summary>
/// Allocate an instance of the type mocked for spying.
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> used for allocating the instance.
/// </param>
/// <returns>
/// It returns an instance of a specific type.
/// </returns>
public override T AllocateSpy <T>(GraphicsContext ctx)
{
T shaderProgramSpy = (T)CreateTypeSpy(_InstanceType, "Test");
ShaderProgram shaderProgram = shaderProgramSpy as ShaderProgram;
if (shaderProgram != null)
{
ShaderObject vertexShaderObject = new ShaderObject(ShaderStage.Vertex);
vertexShaderObject.LoadSource(VertexShaderSource);
ShaderObject fragmentShaderObject = new ShaderObject(ShaderStage.Fragment);
fragmentShaderObject.LoadSource(FragmentShaderSource);
shaderProgram.AttachShader(vertexShaderObject);
shaderProgram.AttachShader(fragmentShaderObject);
}
return(shaderProgramSpy);
}
public static void CompileShaders(OpenGL gl)
{
foreach (var name in shaderNames)
{
ShaderProgram program = new ShaderProgram();
string shaderError = "";
// Create a vertex shader.
VertexShader vertexShader = new VertexShader();
vertexShader.CreateInContext(gl);
vertexShader.SetSource(ResourceLoader.LoadEmbeddedTextFile($"Shaders\\{name}.vert"));
// Create a fragment shader.
FragmentShader fragmentShader = new FragmentShader();
fragmentShader.CreateInContext(gl);
fragmentShader.SetSource(ResourceLoader.LoadEmbeddedTextFile($"Shaders\\{name}.frag"));
// Compile them both.
vertexShader.Compile();
fragmentShader.Compile();
if ((bool)!vertexShader.CompileStatus)
{
shaderError += "color.vert: " + vertexShader.InfoLog + "\n\n";
}
if ((bool)!fragmentShader.CompileStatus)
{
shaderError += "color.frag: " + fragmentShader.InfoLog;
}
// Build a program.
program.CreateInContext(gl);
// Attach the shaders.
program.AttachShader(vertexShader);
program.AttachShader(fragmentShader);
program.Link();
programs.Add(name, program);
shaderErrors.Add(name, shaderError);
}
}
public void ExampleCreateShaderProgram(GraphicsContext ctx, IEnumerable <Shader> shaderObjects)
{
ShaderProgram shaderProgram = new ShaderProgram("SampleProgram");
foreach (Shader shader in shaderObjects)
{
shaderProgram.AttachShader(shader);
}
shaderProgram.Create(ctx);
}
public static ShaderProgram CreateShaderProgram(RenderContext renderContext)
{
VertexShader vertexShader = CreateVertexShader(renderContext);
FragmentShader fragmentShader = CreateFragmentShader(renderContext);
ShaderProgram shaderProgram = new ShaderProgram(renderContext);
shaderProgram.AttachShader(vertexShader);
shaderProgram.AttachShader(fragmentShader);
shaderProgram.Link();
shaderProgram.DetachShader(vertexShader);
shaderProgram.DetachShader(fragmentShader);
vertexShader.Dispose();
fragmentShader.Dispose();
shaderProgram.Label = "IMGUI ShaderProgram";
return(shaderProgram);
}
public void OpenGLInit(object sender, OpenGLEventArgs args, string Vertex_shader_textbox, string Fragment_shader_textbox)
{
//CREATE THE VAO
args.OpenGL.GenVertexArrays(1, vao);
args.OpenGL.BindVertexArray(vao[0]);
//CREATE THE VBO AND POPULATE IT WITH THE QUAD VERTICIES
args.OpenGL.GenBuffers(1, vbo);
args.OpenGL.BindBuffer(OpenGL.GL_ARRAY_BUFFER, vbo[0]);
args.OpenGL.BufferData(OpenGL.GL_ARRAY_BUFFER, g_vertex_buffer_data.Length * sizeof(float), GCHandle.Alloc(g_vertex_buffer_data, GCHandleType.Pinned).AddrOfPinnedObject(), OpenGL.GL_STATIC_DRAW);
args.OpenGL.VertexAttribPointer(0, 3, OpenGL.GL_FLOAT, false, 0, new IntPtr(0));
//Tell opengl what attribute arrays we need
args.OpenGL.EnableVertexAttribArray(0);
args.OpenGL.EnableVertexAttribArray(1);
args.OpenGL.EnableVertexAttribArray(2);
args.OpenGL.EnableVertexAttribArray(3);
//This is the position attribute pointer (layout(location = 0) in vec2 vertexPosition;)
args.OpenGL.VertexAttribPointer(1, 2, OpenGL.GL_FLOAT, false, 0, new IntPtr(0));
//This is the color attribute pointer layout(location = 1) in vec4 vertexColor;
args.OpenGL.VertexAttribPointer(2, 4, OpenGL.GL_UNSIGNED_BYTE, false, 0, new IntPtr(2));
//This is the UV attribute pointer layout(location = 2) in vec2 vertexUV;
args.OpenGL.VertexAttribPointer(3, 2, OpenGL.GL_FLOAT, false, 0, new IntPtr(0));
//UNBIND WHEN FINISHED
args.OpenGL.BindVertexArray(0);
args.OpenGL.BindBuffer(OpenGL.GL_ARRAY_BUFFER, 0);
//SET SOME GL CONSTANTS
args.OpenGL.Enable(OpenGL.GL_DEPTH_TEST);
args.OpenGL.Enable(OpenGL.GL_BLEND);
args.OpenGL.BlendFunc(OpenGL.GL_SRC_ALPHA, OpenGL.GL_ONE_MINUS_SRC_ALPHA);
args.OpenGL.ShadeModel(OpenGL.GL_SMOOTH);
// Create a vertex shader.
vertexShader = new VertexShader();
vertexShader.CreateInContext(args.OpenGL);
vertexShader.SetSource(Vertex_shader_textbox);
// Create a fragment shader.
fragmentShader = new FragmentShader();
fragmentShader.CreateInContext(args.OpenGL);
fragmentShader.SetSource(Fragment_shader_textbox);
// Compile them both.
vertexShader.Compile();
fragmentShader.Compile();
// Build a program.
m_shaderProgram.CreateInContext(args.OpenGL);
// Attach the shaders.
m_shaderProgram.AttachShader(vertexShader);
m_shaderProgram.AttachShader(fragmentShader);
m_shaderProgram.Link();
//SET UP TEXTURE 1
texture.Create(args.OpenGL, Environment.CurrentDirectory + @"\1.png");
texture.Bind(args.OpenGL);
}
public override void Prepare(GL_ControlModern control)
{
if (!Initialized)
{
var defaultFrag = new FragmentShader(
@"#version 330
in vec4 fragColor;
void main(){
gl_FragColor = fragColor;
}" );
var defaultVert = new VertexShader(
@"#version 330
in vec4 position;
layout(location = 1) in vec4 color;
layout(location = 2) in vec3 _cp1;
layout(location = 3) in vec3 _cp2;
out vec4 vertColor;
out vec4 cp1;
out vec4 cp2;
void main(){
cp1 = vec4(_cp1,0);
cp2 = vec4(_cp2,0);
vertColor = color;
gl_Position = position;
}" );
#region block shader
defaultShaderProgram = new ShaderProgram(defaultFrag, defaultVert);
defaultShaderProgram.AttachShader(new Shader(
@"#version 330
layout(points) in;
layout(triangle_strip, max_vertices = 72) out;
in vec4 vertColor[];
in vec4 cp1[];
in vec4 cp2[];
out vec4 fragColor;
uniform mat4 mtxMdl;
uniform mat4 mtxCam;
uniform float scale;
float cubeScale;
vec4 pos;
mat4 mtx = mtxCam*mtxMdl;
vec4 points[8] = vec4[](
vec4(-1.0,-1.0,-1.0, 0.0),
vec4( 1.0,-1.0,-1.0, 0.0),
vec4(-1.0, 1.0,-1.0, 0.0),
vec4( 1.0, 1.0,-1.0, 0.0),
vec4(-1.0,-1.0, 1.0, 0.0),
vec4( 1.0,-1.0, 1.0, 0.0),
vec4(-1.0, 1.0, 1.0, 0.0),
vec4( 1.0, 1.0, 1.0, 0.0)
);
void face(int p1, int p2, int p3, int p4){
gl_Position = mtx * (pos + points[p1]*cubeScale); EmitVertex();
gl_Position = mtx * (pos + points[p2]*cubeScale); EmitVertex();
gl_Position = mtx * (pos + points[p3]*cubeScale); EmitVertex();
gl_Position = mtx * (pos + points[p4]*cubeScale); EmitVertex();
EndPrimitive();
}
void faceInv(int p3, int p4, int p1, int p2){
gl_Position = mtx * (pos + points[p1]*cubeScale); EmitVertex();
gl_Position = mtx * (pos + points[p2]*cubeScale); EmitVertex();
gl_Position = mtx * (pos + points[p3]*cubeScale); EmitVertex();
gl_Position = mtx * (pos + points[p4]*cubeScale); EmitVertex();
EndPrimitive();
}
void main(){
cubeScale = scale;
pos = gl_in[0].gl_Position;
fragColor = vertColor[0];
face(0,1,2,3);
faceInv(4,5,6,7);
faceInv(0,1,4,5);
face(2,3,6,7);
face(0,2,4,6);
faceInv(1,3,5,7);
cubeScale = scale*0.5;
if(cp1[0]!=vec4(0,0,0,0)){
pos = gl_in[0].gl_Position+cp1[0];
face(0,1,2,3);
faceInv(4,5,6,7);
faceInv(0,1,4,5);
face(2,3,6,7);
face(0,2,4,6);
faceInv(1,3,5,7);
}
if(cp2[0]!=vec4(0,0,0,0)){
pos = gl_in[0].gl_Position+cp2[0];
face(0,1,2,3);
faceInv(4,5,6,7);
faceInv(0,1,4,5);
face(2,3,6,7);
face(0,2,4,6);
faceInv(1,3,5,7);
}
}
" , ShaderType.GeometryShader));
defaultShaderProgram.LinkShaders();
#endregion
#region lines shader
defaultLinesShaderProgram = new ShaderProgram(defaultFrag, defaultVert);
defaultLinesShaderProgram.AttachShader(new Shader(
@"#version 330
layout(points) in;
layout(line_strip, max_vertices = 72) out;
in vec4 vertColor[];
in vec4 cp1[];
in vec4 cp2[];
out vec4 fragColor;
uniform mat4 mtxMdl;
uniform mat4 mtxCam;
uniform float scale;
float cubeScale;
vec4 pos;
mat4 mtx = mtxCam*mtxMdl;
vec4 points[8] = vec4[](
vec4(-1.0,-1.0,-1.0, 0.0),
vec4( 1.0,-1.0,-1.0, 0.0),
vec4(-1.0, 1.0,-1.0, 0.0),
vec4( 1.0, 1.0,-1.0, 0.0),
vec4(-1.0,-1.0, 1.0, 0.0),
vec4( 1.0,-1.0, 1.0, 0.0),
vec4(-1.0, 1.0, 1.0, 0.0),
vec4( 1.0, 1.0, 1.0, 0.0)
);
void face(int p1, int p2, int p4, int p3){
gl_Position = mtx * (pos + points[p1]*cubeScale); EmitVertex();
gl_Position = mtx * (pos + points[p2]*cubeScale); EmitVertex();
gl_Position = mtx * (pos + points[p3]*cubeScale); EmitVertex();
gl_Position = mtx * (pos + points[p4]*cubeScale); EmitVertex();
gl_Position = mtx * (pos + points[p1]*cubeScale); EmitVertex();
EndPrimitive();
}
void line(int p1, int p2){
gl_Position = mtx * (pos + points[p1]*cubeScale); EmitVertex();
gl_Position = mtx * (pos + points[p2]*cubeScale); EmitVertex();
EndPrimitive();
}
void main(){
cubeScale = scale;
pos = gl_in[0].gl_Position;
fragColor = vertColor[0];
face(0,1,2,3);
face(4,5,6,7);
line(0,4);
line(1,5);
line(2,6);
line(3,7);
cubeScale = scale*0.5;
if(cp1[0]!=vec4(0,0,0,0)){
pos = gl_in[0].gl_Position+cp1[0];
face(0,1,2,3);
face(4,5,6,7);
line(0,4);
line(1,5);
line(2,6);
line(3,7);
}
if(cp2[0]!=vec4(0,0,0,0)){
pos = gl_in[0].gl_Position+cp2[0];
face(0,1,2,3);
face(4,5,6,7);
line(0,4);
line(1,5);
line(2,6);
line(3,7);
}
}
" , ShaderType.GeometryShader));
defaultLinesShaderProgram.LinkShaders();
#endregion
var connectLinesFrag = new FragmentShader(
@"#version 330
uniform vec4 color;
void main(){
gl_FragColor = color;
}" );
var connectLinesVert = new VertexShader(
@"#version 330
in vec4 position;
layout(location = 1) in vec3 _controlPoint;
out vec4 controlPoint;
void main(){
controlPoint = vec4(_controlPoint,0.0);
gl_Position = position;
}" );
#region connections shader
connectLinesShaderProgram = new ShaderProgram(connectLinesFrag, connectLinesVert);
connectLinesShaderProgram.AttachShader(new Shader(
@"#version 330
layout(lines) in;
layout(line_strip, max_vertices = 19) out;
in vec4 controlPoint[];
uniform mat4 mtxMdl;
uniform mat4 mtxCam;
mat4 mtx = mtxCam*mtxMdl;
vec4 p0 = gl_in[0].gl_Position;
vec4 p1 = gl_in[0].gl_Position + controlPoint[0];
vec4 p2 = gl_in[1].gl_Position + controlPoint[1];
vec4 p3 = gl_in[1].gl_Position;
void getPointAtTime(float t){
float u = 1f - t;
float tt = t * t;
float uu = u * u;
float uuu = uu * u;
float ttt = tt * t;
gl_Position = mtx * (uuu * p0 +
3 * uu * t * p1 +
3 * u *tt * p2 +
ttt * p3);
EmitVertex();
}
void main(){
gl_Position = mtx * p1;
EmitVertex();
for(float t = 0; t<=1.0; t+=0.0625){
getPointAtTime(t);
}
gl_Position = mtx * p2;
EmitVertex();
EndPrimitive();
}
" , ShaderType.GeometryShader));
#endregion
connectLinesShaderProgram.LinkShaders();
Initialized = true;
}
}