/// <summary>
/// Initialises the scene.
/// </summary>
/// <param name="gl">The OpenGL instance.</param>
/// <param name="width">The width of the screen.</param>
/// <param name="height">The height of the screen.</param>
public void Initialise(OpenGL gl, float width, float height)
{
// Set a blue clear colour.
gl.ClearColor(0.4f, 0.6f, 0.9f, 0.0f);
// Create the shader program.
var vertexShaderSource = ManifestResourceLoader.LoadTextFile("Shader.vert");
var fragmentShaderSource = ManifestResourceLoader.LoadTextFile("Shader.frag");
shaderProgram = new ShaderProgram();
shaderProgram.Create(gl, vertexShaderSource, fragmentShaderSource, null);
shaderProgram.BindAttributeLocation(gl, attributeIndexPosition, "in_Position");
shaderProgram.BindAttributeLocation(gl, attributeIndexColour, "in_Color");
shaderProgram.AssertValid(gl);
// Create a perspective projection matrix.
const float rads = (60.0f / 360.0f) * (float)Math.PI * 2.0f;
projectionMatrix = glm.perspective(rads, width / height, 0.1f, 100.0f);
// Create a view matrix to move us back a bit.
viewMatrix = glm.translate(new mat4(1.0f), new vec3(0.0f, 0.0f, -5.0f));
// Create a model matrix to make the model a little bigger.
modelMatrix = glm.scale(new mat4(1.0f), new vec3(2.5f));
// Now create the geometry for the square.
CreateVerticesForSquare(gl);
}
/// <summary>
/// Creates the projection matrix for the given screen size.
/// </summary>
/// <param name="screenWidth">Width of the screen.</param>
/// <param name="screenHeight">Height of the screen.</param>
public void CreateProjectionMatrix(float screenWidth, float screenHeight)
{
// Create the projection matrix for our screen size.
const float S = 0.46f;
float H = S * screenHeight / screenWidth;
projectionMatrix = glm.pfrustum(-S, S, -H, H, 1, 100);
}
public DragParam(mat4 projectionMatrix, mat4 viewMatrix, vec4 viewport, Point lastMousePositionOnScreen)
{
this.projectionMatrix = projectionMatrix;
this.viewMatrix = viewMatrix;
this.lastMousePositionOnScreen = lastMousePositionOnScreen;
this.viewport = viewport;
}
public EntityRenderer(StaticShader shader,mat4 projectionMatrix)
{
this.shader = shader;
shader.start();
shader.loadProjectionMatrix(projectionMatrix);
shader.stop();
}
public static mat4 createTransformationMatrix(GlmNet.vec3 translation, vec3 rot, float scale)
{
mat4 matrix = new mat4(4);
matrix = glm.translate(matrix, translation);
mat4 rotMatrix = glm.rotate(rot.x, new vec3(0, 0, 1)) * glm.rotate(rot.y, new vec3(0, 1, 0)) * glm.rotate(rot.z, new vec3(1, 0, 0));
mat4 scaleMatrix = new mat4(4);
scaleMatrix = glm.scale(scaleMatrix, new vec3(scale, scale, scale));
return matrix * rotMatrix * scaleMatrix;
}
public static mat4 ScaleMatrix(ref vec3 s)
{
mat4 r = new mat4(s.x, 0, 0, 0,
0, s.y, 0, 0,
0, 0, s.z, 0,
0, 0, 0, 1);
return r;
}
/// <summary>
/// Gets the inversed matrix.
/// <para>获取逆矩阵。</para>
/// </summary>
/// <param name="m"></param>
/// <returns></returns>
public static mat4 inverse(mat4 m)
{
float Coef00 = m[2][2] * m[3][3] - m[3][2] * m[2][3];
float Coef02 = m[1][2] * m[3][3] - m[3][2] * m[1][3];
float Coef03 = m[1][2] * m[2][3] - m[2][2] * m[1][3];
float Coef04 = m[2][1] * m[3][3] - m[3][1] * m[2][3];
float Coef06 = m[1][1] * m[3][3] - m[3][1] * m[1][3];
float Coef07 = m[1][1] * m[2][3] - m[2][1] * m[1][3];
float Coef08 = m[2][1] * m[3][2] - m[3][1] * m[2][2];
float Coef10 = m[1][1] * m[3][2] - m[3][1] * m[1][2];
float Coef11 = m[1][1] * m[2][2] - m[2][1] * m[1][2];
float Coef12 = m[2][0] * m[3][3] - m[3][0] * m[2][3];
float Coef14 = m[1][0] * m[3][3] - m[3][0] * m[1][3];
float Coef15 = m[1][0] * m[2][3] - m[2][0] * m[1][3];
float Coef16 = m[2][0] * m[3][2] - m[3][0] * m[2][2];
float Coef18 = m[1][0] * m[3][2] - m[3][0] * m[1][2];
float Coef19 = m[1][0] * m[2][2] - m[2][0] * m[1][2];
float Coef20 = m[2][0] * m[3][1] - m[3][0] * m[2][1];
float Coef22 = m[1][0] * m[3][1] - m[3][0] * m[1][1];
float Coef23 = m[1][0] * m[2][1] - m[2][0] * m[1][1];
vec4 Fac0 = new vec4(Coef00, Coef00, Coef02, Coef03);
vec4 Fac1 = new vec4(Coef04, Coef04, Coef06, Coef07);
vec4 Fac2 = new vec4(Coef08, Coef08, Coef10, Coef11);
vec4 Fac3 = new vec4(Coef12, Coef12, Coef14, Coef15);
vec4 Fac4 = new vec4(Coef16, Coef16, Coef18, Coef19);
vec4 Fac5 = new vec4(Coef20, Coef20, Coef22, Coef23);
vec4 Vec0 = new vec4(m[1][0], m[0][0], m[0][0], m[0][0]);
vec4 Vec1 = new vec4(m[1][1], m[0][1], m[0][1], m[0][1]);
vec4 Vec2 = new vec4(m[1][2], m[0][2], m[0][2], m[0][2]);
vec4 Vec3 = new vec4(m[1][3], m[0][3], m[0][3], m[0][3]);
vec4 Inv0 = new vec4(Vec1 * Fac0 - Vec2 * Fac1 + Vec3 * Fac2);
vec4 Inv1 = new vec4(Vec0 * Fac0 - Vec2 * Fac3 + Vec3 * Fac4);
vec4 Inv2 = new vec4(Vec0 * Fac1 - Vec1 * Fac3 + Vec3 * Fac5);
vec4 Inv3 = new vec4(Vec0 * Fac2 - Vec1 * Fac4 + Vec2 * Fac5);
vec4 SignA = new vec4(+1, -1, +1, -1);
vec4 SignB = new vec4(-1, +1, -1, +1);
mat4 Inverse = new mat4(Inv0 * SignA, Inv1 * SignB, Inv2 * SignA, Inv3 * SignB);
vec4 Row0 = new vec4(Inverse[0][0], Inverse[1][0], Inverse[2][0], Inverse[3][0]);
vec4 Dot0 = new vec4(m[0] * Row0);
float Dot1 = (Dot0.x + Dot0.y) + (Dot0.z + Dot0.w);
float OneOverDeterminant = (1f) / Dot1;
return Inverse * OneOverDeterminant;
}
public static mat4 createViewMatrix(Camera camera)
{
mat4 viewMatrix = new mat4();
viewMatrix = glm.rotate((float)ToRadiansExtension.ToRadians(camera.getRotation().y), new vec3(1, 0, 0));
viewMatrix = glm.rotate(viewMatrix,(float)ToRadiansExtension.ToRadians(camera.getRotation().z), new vec3(0, 1, 0));
viewMatrix = glm.rotate(viewMatrix,(float)ToRadiansExtension.ToRadians(camera.getRotation().x), new vec3(0, 0, 1));
vec3 negativeCameraPos = new vec3(-camera.getPosition().x, -camera.getPosition().y, -camera.getPosition().z);
viewMatrix = glm.translate(viewMatrix, negativeCameraPos);
return viewMatrix;
}
/// <summary>
/// Creates the modelview and normal matrix. Also rotates the sceen by a specified amount.
/// </summary>
/// <param name="rotationAngle">The rotation angle, in radians.</param>
public void CreateModelviewAndNormalMatrix(float rotationAngle)
{
// Create the modelview and normal matrix. We'll also rotate the scene
// by the provided rotation angle, which means things that draw it
// can make the scene rotate easily.
mat4 rotation = glm.rotate(mat4.identity(), rotationAngle, new vec3(0, 1, 0));
mat4 translation = glm.translate(mat4.identity(), new vec3(0, 0, -4));
modelviewMatrix = rotation * translation;
normalMatrix = modelviewMatrix.to_mat3();
}
/// <summary>
/// Creates the projection matrix for the given screen size.
/// </summary>
/// <param name="gl">The OpenGL instance.</param>
/// <param name="screenWidth">Width of the screen.</param>
/// <param name="screenHeight">Height of the screen.</param>
public void CreateProjectionMatrix(OpenGL gl, float screenWidth, float screenHeight)
{
// Create the projection matrix for our screen size.
const float S = 0.46f;
float H = S * screenHeight / screenWidth;
projectionMatrix = glm.pfrustum(-S, S, -H, H, 1, 100);
// When we do immediate mode drawing, OpenGL needs to know what our projection matrix
// is, so set it now.
gl.MatrixMode(OpenGL.GL_PROJECTION);
gl.LoadIdentity();
gl.MultMatrix(projectionMatrix.to_array());
gl.MatrixMode(OpenGL.GL_MODELVIEW);
}
/// <summary>
/// Concatenates every value in this matrix with it's corresponding value in the other one.
/// </summary>
/// <param name="m">This matrix</param>
/// <param name="m2">Other matrix</param>
/// <returns>The concatenated result.</returns>
public static mat4 Concat(this mat4 m, mat4 m2)
{
vec4[] vecs = new vec4[4];
for (int i = 0; i < vecs.Length; i++)
{
vecs[i] = new vec4();
for (int j = 0; j < vecs.Length; j++)
{
vecs[i][j] = m[i][j] + m2[i][j];
}
}
return new mat4(vecs);
}
/// <summary>
/// Creates a matrix for a symmetric perspective-view frustum with far plane at infinite.
/// </summary>
/// <param name="fovy">The fovy.</param>
/// <param name="aspect">The aspect.</param>
/// <param name="zNear">The z near.</param>
/// <returns></returns>
public static mat4 infinitePerspective(float fovy, float aspect, float zNear)
{
float range = tan(fovy/(2f))*zNear;
float left = -range*aspect;
float right = range*aspect;
float bottom = -range;
float top = range;
var result = new mat4(0);
result[0, 0] = ((2f)*zNear)/(right - left);
result[1, 1] = ((2f)*zNear)/(top - bottom);
result[2, 2] = - (1f);
result[2, 3] = - (1f);
result[3, 2] = - (2f)*zNear;
return result;
}
public void RenderBeforeChildren(RenderEventArgs arg)
{
RenderMethod method = this.RenderUnit.Methods[0];
ShaderProgram program = method.Program;
ICamera camera = arg.Camera;
mat4 projection = camera.GetProjectionMatrix();
mat4 view = camera.GetViewMatrix();
mat4 model = this.GetModelMatrix();
mat4 normal = glm.transpose(glm.inverse(view * model));
program.SetUniform(projectionMatrix, projection);
program.SetUniform(viewMatrix, view);
program.SetUniform(modelMatrix, model);
program.SetUniform(normalMatrix, normal);
program.SetUniform(lightPosition, new vec3(view * new vec4(this.light.Position, 1.0f)));
program.SetUniform(lightColor, this.light.Diffuse);
method.Render();
}
public void RenderBeforeChildren(RenderEventArgs arg)
{
if (!this.IsInitialized)
{
this.Initialize();
}
var camera = arg.Camera;
mat4 p = camera.GetProjectionMatrix();
mat4 v = camera.GetViewMatrix();
mat4 m = this.GetModelMatrix();
var method = this.RenderUnit.Methods[0];
var program = method.Program;
program.SetUniform("MVP", p * v * m);
method.Render();
}
public void setCamera(float posX, float posY, float posZ, float targetX, float targetY, float targetZ)
{
float[] forward = new float[4];
float[] up = new float[4];
float[] left = new float[4];
float[] position = new float[4];
float invLength;
forward[0] = posX - targetX; // x
forward[1] = posY - targetY; // y
forward[2] = posZ - targetZ; // z
forward[3] = 0.0f; // w
// Нормализация
invLength = 1.0f / (float)Math.Sqrt(forward[0] * forward[0] + forward[1] * forward[1] + forward[2] * forward[2]);
forward[0] *= invLength;
forward[1] *= invLength;
forward[2] *= invLength;
up[0] = 0.0f; // x
up[1] = 1.0f; // y
up[2] = 0.0f; // z
up[3] = 0.0f; // w
left[0] = up[1] * forward[2] - up[2] * forward[1]; // x
left[1] = up[2] * forward[0] - up[0] * forward[2]; // y
left[2] = up[0] * forward[1] - up[1] * forward[0]; // z
left[3] = 1.0f; // w
// Вычисление ортогонального вектора
up[0] = forward[1] * left[2] - forward[2] * left[1]; // x
up[1] = forward[2] * left[0] - forward[0] * left[2]; // y
up[2] = forward[0] * left[1] - forward[1] * left[0]; // z
up[3] = 0.0f; // w
// Позиция камеры
position[0] = -posX;
position[1] = -posY;
position[2] = -posZ;
position[3] = 1.0f;
matrixView = new mat4(CreateVec4FromArray(left), CreateVec4FromArray(up), CreateVec4FromArray(forward), CreateVec4FromArray(position));
}
void pyramidElement_BeforeRendering(object sender, Objects.RenderEventArgs e)
{
rotation += 3.0f;
mat4 modelMatrix = glm.rotate(rotation, new vec3(0, 1, 0));
const float distance = 0.7f;
viewMatrix = glm.lookAt(new vec3(-distance, distance, -distance), new vec3(0, 0, 0), new vec3(0, -1, 0));
int[] viewport = new int[4];
GL.GetInteger(GetTarget.Viewport, viewport);
projectionMatrix = glm.perspective(60.0f, (float)viewport[2] / (float)viewport[3], 0.01f, 100.0f);
mat4 mvp = projectionMatrix * viewMatrix * modelMatrix;
IMVP element = sender as IMVP;
element.SetShaderProgram(mvp);
}
void glCanvas1_OpenGLDraw(object sender, PaintEventArgs e)
{
GL.Clear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
var arg = new RenderEventArgs(RenderModes.Render, this.camera);
mat4 projectionMatrix = camera.GetProjectionMat4();
mat4 viewMatrix = camera.GetViewMat4();
mat4 modelMatrix = glm.rotate(rotationAngle, new vec3(0, 1, 0)); //mat4.identity();
//mat4 mvp = projectionMatrix * viewMatrix * modelMatrix;
this.pyramidRenderer.projectionMatrix = projectionMatrix;
this.pyramidRenderer.viewMatrix = viewMatrix;
this.pyramidRenderer.modelMatrix = modelMatrix;
this.pyramidRenderer.Render(arg);
this.Text = string.Format("FormModernOpenGL FPS: {0}", this.glCanvas1.FPS);
}
private void glCanvas1_OpenGLDraw(object sender, PaintEventArgs e)
{
GL.ClearColor(0x87 / 255.0f, 0xce / 255.0f, 0xeb / 255.0f, 0xff / 255.0f);
GL.Clear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
var arg = new RenderEventArgs(RenderModes.Render, this.camera);
{
mat4 modelMatrix = mat4.identity();
mat4 viewMatrix = this.camera.GetViewMat4();
mat4 projectionMatrix = this.camera.GetProjectionMat4();
element.projectionMatrix = projectionMatrix;
element.viewMatrix = viewMatrix;
element.modelMatrix = modelMatrix;
}
element.Render(arg);
uiAxis.Render(arg);
}
void glCanvas1_OpenGLDraw(object sender, PaintEventArgs e)
{
mat4 projectionMatrix = camera.GetProjectionMat4();
projectionMatrix = glm.translate(projectionMatrix, new vec3(translateX, translateY, translateZ));//
mat4 viewMatrix = camera.GetViewMat4();
mat4 modelMatrix = mat4.identity();
mat4 mvp = projectionMatrix * viewMatrix * modelMatrix;
pyramidElement.mvp = mvp;
textElement.mvp = mvp;
GL.Clear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
var arg = new RenderEventArgs(RenderModes.Render, this.camera);
pyramidElement.Render(arg);
textElement.Render(arg);
}
public void RenderBeforeChildren(RenderEventArgs arg)
{
int current = this.CurrentConfig;
if (current < 0)
{
current = 0;
}
if (current >= this.configs.Length)
{
current = this.configs.Length - 1;
}
var config = this.configs[current];
uint inputUnit = 0, outputUnit = 1;
{
RenderMethod method = this.RenderUnit.Methods[config.computeShaderIndex];
ShaderProgram computeProgram = method.Program;
// Activate the compute program and bind the output texture image
computeProgram.Bind();
glBindImageTexture(inputUnit, this.inTexture.Id, 0, false, 0, GL.GL_READ_WRITE, GL.GL_RGBA32F);
glBindImageTexture(outputUnit, this.outTexture.Id, 0, false, 0, GL.GL_READ_WRITE, GL.GL_RGBA32F);
// Dispatch
glDispatchCompute(config.groupXCount, config.gropuYCount, 1);
glMemoryBarrier(GL.GL_SHADER_IMAGE_ACCESS_BARRIER_BIT);
computeProgram.Unbind();
}
{
ICamera camera = arg.Camera;
mat4 projection = camera.GetProjectionMatrix();
mat4 view = camera.GetViewMatrix();
mat4 model = this.GetModelMatrix();
var method = this.RenderUnit.Methods[this.configs.Length]; // the only render unit in this node.
ShaderProgram program = method.Program;
program.SetUniform(tex, this.outTexture);
program.SetUniform(projectionMat, projection);
program.SetUniform(viewMat, view);
program.SetUniform(modelMat, model);
method.Render();
}
}
private void GeneratePositions(Assimp.Scene scene)
{
var lstPosition = new List <vec3>();
var lstColor = new List <vec3>();
var lstNode = new List <Assimp.Node>();
if (scene.RootNode != null && scene.RootNode.HasChildren)
{
mat4 mat = scene.RootNode.Transform.ToMat4();
foreach (Assimp.Node child in scene.RootNode.Children)
{
ParseNode(child, lstPosition, lstColor, lstNode, mat);
}
}
this.positions = lstPosition.ToArray();
this.colors = lstColor.ToArray();
this.nodes = lstNode.ToArray();
}
public override void RenderBeforeChildren(RenderEventArgs arg)
{
RenderUnit unit = this.RenderUnits[0];
ShaderProgram program = unit.Program;
ICamera camera = arg.CameraStack.Peek();
mat4 projection = camera.GetProjectionMatrix();
mat4 view = camera.GetViewMatrix();
mat4 model = this.GetModelMatrix();
mat4 normal = glm.transpose(glm.inverse(view * model));
program.SetUniform(projectionMatrix, projection);
program.SetUniform(viewMatrix, view);
program.SetUniform(modelMatrix, model);
program.SetUniform(normalMatrix, normal);
program.SetUniform(lightPosition, new vec3(view * new vec4(light.Position, 1.0f)));
program.SetUniform(spotDirection, new vec3(view * new vec4(-light.Position, 0.0f)));
unit.Render();
}
public void RenderBeforeChildren(RenderEventArgs arg)
{
ICamera camera = arg.Camera;
mat4 projection = camera.GetProjectionMatrix();
mat4 view = camera.GetViewMatrix();
mat4 model = this.GetModelMatrix();
var method = this.RenderUnit.Methods[0];
ShaderProgram program = method.Program;
program.SetUniform("mvpMatrix", projection * view * model);
program.SetUniform("tex", this.texture);
var viewport = new int[4];
GL.Instance.GetIntegerv((uint)GetTarget.Viewport, viewport);
program.SetUniform("screenWidth", (float)viewport[2]);
program.SetUniform("screenHeight", (float)viewport[3]);
method.Render();
}
/// <summary>
/// Handles the OpenGLInitialized event of the openGLControl1 control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
private void openGLControl1_OpenGLInitialized(object sender, EventArgs e)
{
// Get the OpenGL object.
OpenGL gl = openGLControl1.OpenGL;
// Set the clear color.
gl.ClearColor(0, 0, 0, 0);
// Create a perspective projection matrix.
const float rads = (60.0f / 360.0f) * (float)Math.PI * 2.0f;
projectionMatrix = glm.perspective(rads, Width / Height, 0.1f, 100.0f);
// Create a view matrix to move us back a bit.
viewMatrix = glm.translate(new mat4(1.0f), new vec3(0.0f, 0.0f, -5.0f));
cube.Initialise(gl);
tube.Initialise(gl);
}
public void Rotate(KeyCode code)
{
if (code == KeyCode.Left)
{
_model = glm.rotate(_model, glm.radians(20), new vec3(0.0f, 1.0f, 0.0f));
}
if (code == KeyCode.Right)
{
_model = glm.rotate(_model, glm.radians(-20), new vec3(0.0f, 1.0f, 0.0f));
}
if (code == KeyCode.Up)
{
_model = glm.rotate(_model, glm.radians(20), new vec3(1.0f, 0.0f, 0.0f));
}
if (code == KeyCode.Down)
{
_model = glm.rotate(_model, glm.radians(-20), new vec3(1.0f, 0.0f, 0.0f));
}
}
/// <summary>
/// Slightly edited formula!
/// </summary>
public void BuildPerspectiveProjection()
{
var a = Height / Width;
var n = Near;
var f = Far;
var e = 1 / (float)Math.Tan(FovRadians / 2);
var mat = new mat4(
new vec4[]
{
new vec4(e, 0, 0, 0),
new vec4(0, e / a, 0, 0),
new vec4(0, 0, -(2 * f * n) / (f - n), -1),
new vec4(0, 0, -(f + n) / (f - n), 0),
});
ProjectionMatrix = mat;
}
public void ExtrudeShadow(ShadowVolumeExtrudeEventArgs arg)
{
ICamera camera = arg.Camera;
mat4 projection = camera.GetProjectionMatrix();
mat4 view = camera.GetViewMatrix();
mat4 model = this.GetModelMatrix();
var method = this.RenderUnit.Methods[(int)MethodName.extrudeShadow];
ShaderProgram program = method.Program;
program.SetUniform("vpMat", projection * view);
program.SetUniform("modelMat", model);
if (arg.Light is DirectionalLight)
{
var light = arg.Light as DirectionalLight;
program.SetUniform("lightPosition", light.Direction);
program.SetUniform("farAway", true);
}
else
{
program.SetUniform("lightPosition", arg.Light.Position);
program.SetUniform("farAway", false);
}
// light info.
directionalLight.SetBlinnPhongUniforms(program);
// material.
program.SetUniform("material.diffuse", new vec3(1, 0, 0)); //this.Color);
program.SetUniform("material.specular", new vec3(1, 0, 0)); //this.Color);
program.SetUniform("material.shiness", this.Shiness);
fillFarOffsetSwitch.On();
program.SetUniform("wireframe", false);
method.Render();
fillFarOffsetSwitch.Off();
polygonModeSwitch.On();
lineWidthSwitch.On();
program.SetUniform("wireframe", true);
method.Render();
lineWidthSwitch.Off();
polygonModeSwitch.Off();
}
/// <summary>
/// Creates the Inverse of the matrix.
/// </summary>
/// <param name="mat">A 4x4 matrix.</param>
/// <returns>The inversed matrix.</returns>
public static mat4 Inverse(this mat4 a)
{
int n = 4;
float[][] arrA = new float[n][];
float[][] arrInverse;
mat4 inverse = mat4.identity();
for (int i = 0; i < n; i++)
{
arrA[i] = new float[n];
for (int j = 0; j < n; j++)
{
arrA[i][j] = a[j][i];
}
}
var d = Determinant(arrA, n);
if (d != 0)
{
arrInverse = Cofactor(arrA, n);
//float[][] to mat4
for (int i = 0; i < n; i++)
{
for (int j = 0; j < n; j++)
{
inverse[i, j] = arrInverse[i][j];
}
}
//test if result == I
var res = a * inverse;
return(inverse);
}
else
{
throw new Exception("Matrix can't be inverted, determinant == 0.");
}
}
protected void BeforeRendering(OpenGL gl, RenderMode renderMode)
{
IScientificCamera camera = this.camera;
if (camera != null)
{
if (camera.CameraType == CameraTypes.Perspecitive)
{
IPerspectiveViewCamera perspective = camera;
this.projectionMatrix = perspective.GetProjectionMat4();
this.viewMatrix = perspective.GetViewMat4();
}
else if (camera.CameraType == CameraTypes.Ortho)
{
IOrthoViewCamera ortho = camera;
this.projectionMatrix = ortho.GetProjectionMat4();
this.viewMatrix = ortho.GetViewMat4();
}
else
{
throw new NotImplementedException();
}
}
gl.Enable(OpenGL.GL_TEXTURE_2D);
this.texture.Bind(gl);
modelMatrix = glm.scale(mat4.identity(), new vec3(1, 1, this.ZAxisScale));
ShaderProgram shaderProgram = this.shaderProgram;
// Bind the shader, set the matrices.
shaderProgram.Bind(gl);
shaderProgram.SetUniformMatrix4(gl, "projectionMatrix", projectionMatrix.to_array());
shaderProgram.SetUniformMatrix4(gl, "viewMatrix", viewMatrix.to_array());
shaderProgram.SetUniformMatrix4(gl, "modelMatrix", modelMatrix.to_array());
shaderProgram.SetUniform1(gl, "tex", this.texture.TextureName);
shaderProgram.SetUniform1(gl, "brightness", this.Brightness);
shaderProgram.SetUniform1(gl, "opacity", this.Opacity);
gl.Enable(OpenGL.GL_POLYGON_SMOOTH);
gl.Hint(OpenGL.GL_POLYGON_SMOOTH_HINT, OpenGL.GL_NICEST);
}
protected override void DoRender(RenderEventArgs arg)
{
mat4 projection = arg.Camera.GetProjectionMatrix();
mat4 view = arg.Camera.GetViewMatrix();
this.SetUniform("projectionMatrix", projection);
this.SetUniform("viewMatrix", view);
MarkableStruct <mat4> model = this.GetModelMatrix();
if (this.modelTicks != model.UpdateTicks)
{
this.SetUniform("modelMatrix", model.Value);
this.modelTicks = model.UpdateTicks;
}
//this.glUniform("uniformColor", this.uniformColor);
base.DoRender(arg);
}
protected override void DoRender(RenderEventArgs arg)
{
this.SetUniform("ambientLight", this.AmbientLightColor);
this.SetUniform("directionalLightColor", this.DirectionalLightColor);
this.SetUniform("directionalLightDirection", this.DirectionalLightDirection.normalize());
this.SetUniform("halfVector", this.DirectionalLightDirection.normalize());
//this.SetUniform("halfVector", this.HalfVector.normalize());
this.SetUniform("shininess", this.Shininess);
this.SetUniform("strength", this.Strength);
mat4 projection = arg.Camera.GetProjectionMatrix();
mat4 view = arg.Camera.GetViewMatrix();
mat4 model = this.GetModelMatrix().Value;
this.SetUniform("mvpMatrix", projection * view * model);
this.SetUniform("normalMatrix", glm.transpose(glm.inverse(model)).to_mat3());
base.DoRender(arg);
}
private void glCanvas1_OpenGLDraw(object sender, PaintEventArgs e)
{
OpenGL.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT | OpenGL.GL_STENCIL_BUFFER_BIT);
RenderEventArgs arg = new RenderEventArgs(RenderModes.Render, this.glCanvas1.ClientRectangle, this.camera);
{
mat4 projection = arg.Camera.GetProjectionMat4();
mat4 view = arg.Camera.GetViewMat4();
vec4 translationColumn = view[3];
translationColumn.x += this.position.x;
translationColumn.y += this.position.y;
translationColumn.z += this.position.z;
view[3] = translationColumn;
mat4 model = glm.scale(mat4.identity(), new vec3(0.3f, 0.3f, 0.3f));
this.cubeRenderer.SetUniform("projectionMatrix", projection);
this.cubeRenderer.SetUniform("viewMatrix", view);
this.cubeRenderer.SetUniform("modelMatrix", model);
this.cubeRenderer.Render(arg);
}
{
mat4 projection = arg.Camera.GetProjectionMat4();
mat4 view = arg.Camera.GetViewMat4();
mat4 model = mat4.identity();
this.billboardRenderer.SetUniform("CameraRight_worldspace", new vec3(
view[0][0], view[1][0], view[2][0]));
this.billboardRenderer.SetUniform("CameraUp_worldspace", new vec3(
view[0][1], view[1][1], view[2][1]));
this.billboardRenderer.SetUniform("BillboardPos", new vec3(
(float)Math.Cos(currentTime), 1f, (float)Math.Sin(currentTime)));
this.billboardRenderer.SetUniform("BillboardSize", new vec2(1.0f, 0.125f));
float lifeLevel = (float)(Math.Sin(currentTime) * 0.4 + 0.5); currentTime += 0.1f;
this.billboardRenderer.SetUniform("LifeLevel", lifeLevel);
this.billboardRenderer.SetUniform("VP", projection * view);
this.billboardRenderer.Render(arg);
}
UIRenderersDraw(arg);
// Cross cursor shows where the mouse is.
OpenGL.DrawText(this.lastMousePosition.X - offset.X,
this.glCanvas1.Height - (this.lastMousePosition.Y + offset.Y) - 1,
Color.Red, "Courier New", crossCursorSize, "o");
}
void control_MouseMove(object sender, MouseEventArgs e)
{
if (mouseDownFlag && ((e.Button & this.lastBindingMouseButtons) != MouseButtons.None))
{
this._endPosition = GetArcBallPosition(e.X, e.Y);
var cosAngle = _startPosition.dot(_endPosition) / (_startPosition.length() * _endPosition.length());
if (cosAngle > 1.0f)
{
cosAngle = 1.0f;
}
else if (cosAngle < -1)
{
cosAngle = -1.0f;
}
var angle = MouseSensitivity * (float)(Math.Acos(cosAngle) / Math.PI * 180);
_normalVector = _startPosition.cross(_endPosition).normalize();
if (!
((_normalVector.x == 0 && _normalVector.y == 0 && _normalVector.z == 0) ||
float.IsNaN(_normalVector.x) || float.IsNaN(_normalVector.y) || float.IsNaN(_normalVector.z)))
{
_startPosition = _endPosition;
mat4 newRotation = glm.rotate(angle, _normalVector);
this.finalMat = newRotation * finalMat;
callBackAction(this.finalMat);
//控制台瞄一眼
float[] debugA = this.finalMat.to_array();
StringBuilder sb = new StringBuilder();
sb.Append("finalMat[");
for (int i = 0; i < 16; i++)
{
sb.Append($"{debugA[i]} ,");
if ((i + 1) % 4 == 0)
{
sb.Append("\n");
}
}
}
}
}
public md2LOL(string fileName)
{
AnimationSpeed = 0.001f;
animlist = new List <anim_t>();
anim_t a1 = new anim_t();
a1.first_frame = 0; a1.last_frame = 30; a1.fps = 30;
animlist.Add(a1);
a1 = new anim_t();
a1.first_frame = 31; a1.last_frame = 60; a1.fps = 30;
animlist.Add(a1);
a1 = new anim_t();
a1.first_frame = 61; a1.last_frame = 90; a1.fps = 30;
animlist.Add(a1);
a1 = new anim_t();
a1.first_frame = 91; a1.last_frame = 120; a1.fps = 30;
animlist.Add(a1);
a1 = new anim_t();
a1.first_frame = 121; a1.last_frame = 150; a1.fps = 30;
animlist.Add(a1);
a1 = new anim_t();
a1.first_frame = 151; a1.last_frame = 178; a1.fps = 30;
animlist.Add(a1);
a1 = new anim_t();
a1.first_frame = 181; a1.last_frame = 210; a1.fps = 30;
animlist.Add(a1);
LOLMD2AnimationNames = new List <string>();
LOLMD2AnimationNames.Add("Stand");
LOLMD2AnimationNames.Add("Attack1");
LOLMD2AnimationNames.Add("Attack2");
LOLMD2AnimationNames.Add("Run");
LOLMD2AnimationNames.Add("Death");
LOLMD2AnimationNames.Add("Spell1");
LOLMD2AnimationNames.Add("Spell2");
TranslationMatrix = new mat4(1);
rotationMatrix = new mat4(1);
scaleMatrix = new mat4(1);
LoadModel(fileName);
}
internal void Draw()
{
if (!CycleMode)
{
return;
}
if (Cycle.Count == 0)
{
throw new ApplicationException("Skybox cycle is empty.");
}
var gl = XEngineContext.Graphics;
var shader = XEngineContext.SkyboxShader;
var scene = SceneManager.CurrentScene;
var camera = scene.MainCamera;
transform = camera.WorldToView.copy_to(transform);
transform = quaternion.euler(transform, 0.0f, Rotation, 0.0f);
transform.serialize(transform_cache);
transform_cache[12] = transform_cache[13] = transform_cache[14] = 0.0f;
shader.Use();
gl.UniformMatrix4(shader.Project, 1, false, camera.ViewToProjectData);
gl.UniformMatrix4(shader.View, 1, false, transform_cache);
shader.SetScalar("scale", Scale);
shader.SetScalar("transition", Transition);
var sky1 = Cycle.Peek();
var sky2 = Cycle.Count == 1 ? sky1 : Cycle.Second();
sky1.texture.Activate(0u);
sky2.texture.Activate(1u);
shader.SetVec4("sky1_color", sky1.SkyColor.r, sky1.SkyColor.g, sky1.SkyColor.b, sky1.SkyColor.a);
shader.SetScalar("sky1_map", 0);
shader.SetVec4("sky2_color", sky2.SkyColor.r, sky2.SkyColor.g, sky2.SkyColor.b, sky2.SkyColor.a);
shader.SetScalar("sky2_map", 1);
Skybox.mesh.Activate();
gl.DrawArrays(OpenGL.GL_TRIANGLES, 0, Skybox.SkyboxShape.Geometry.VertexCount);
}
void axisElement2_BeforeRendering(object sender, Objects.RenderEventArgs e)
{
AxisElement2 element = sender as AxisElement2;
mat4 projectionMatrix = camera.GetProjectionMat4();
projectionMatrix = glm.translate(projectionMatrix, new vec3(translateX, translateY, translateZ));//
mat4 viewMatrix = camera.GetViewMat4();
mat4 modelMatrix = mat4.identity();
ShaderProgram shaderProgram = element.shaderProgram;
shaderProgram.Bind();
shaderProgram.SetUniformMatrix4(AxisElement2.strprojectionMatrix, projectionMatrix.to_array());
shaderProgram.SetUniformMatrix4(AxisElement2.strviewMatrix, viewMatrix.to_array());
shaderProgram.SetUniformMatrix4(AxisElement2.strmodelMatrix, modelMatrix.to_array());
}
public void render(mat4 viewProjection)
{
if (!initialized)
{
return;
}
if (_verticesCount == 0)
{
return;
}
mat4 mvp = viewProjection * _model;
ToolBox.gl.UniformMatrix4(3, 1, false, mvp.ToArray());
ToolBox.gl.BindVertexArray(_vaoID);
ToolBox.gl.DrawArrays(GL_TRIANGLES, 0, _verticesCount);
// This unbind is unnecessary
// ToolBox.gl.BindVertexArray(0);
}
public override void RenderBeforeChildren(CSharpGL.RenderEventArgs arg)
{
if (!this.IsInitialized)
{
this.Initialize();
}
ICamera camera = arg.CameraStack.Peek();
mat4 projectionMatrix = camera.GetProjectionMatrix();
mat4 viewMatrix = camera.GetViewMatrix();
mat4 modelMatrix = this.GetModelMatrix();
RenderMethod method = this.RenderUnit.Methods[0];
ShaderProgram program = method.Program;
program.SetUniform(mvpMatrix, projectionMatrix * viewMatrix * modelMatrix);
program.SetUniform(skybox, this.texture);
method.Render();
}
protected override void DoRender(RenderEventArgs e)
{
mat4 projectionMatrix, viewMatrix, modelMatrix;
{
IUILayout element = this as IUILayout;
element.GetMatrix(out projectionMatrix, out viewMatrix, out modelMatrix, e.Camera);
}
this.mvp = projectionMatrix * viewMatrix * modelMatrix;
this.shaderProgram.Bind();
this.shaderProgram.SetUniformMatrix4(strMVP, mvp.to_array());
GL.BindVertexArray(vao[0]);
GL.DrawArrays(this.axisPrimitiveMode, 0, this.axisVertexCount);
GL.BindVertexArray(0);
this.shaderProgram.Unbind();
}
/// <summary>
/// Puts the values from the matrix in a readable 4 line string, where each line defines 1 vector.
/// BEWARE: if m contains null vectors, it will throw an exception. This exception is being caught here, but this might create performance issues.
/// If exception is caught, this method will return an empty string( = "").
/// </summary>
/// <param name="m">The matrix.</param>
/// <param name="round">Used for calling Math.Round(m[i][j], round)</param>
/// <returns>A readable 4 line string, where each line defines 1 vector </returns>
public static string ToValueString(this mat4 m, int round = 3)
{
var txt = "";
try
{
for (int i = 0; i < 4; i++)
{
var arr = m.to_array();
var mi = m[i];
txt += mi.ToValueString(round);
txt += "\n";
}
}
catch (Exception)
{
txt = "";
}
return(txt);
}
protected override void DoRender(RenderEventArgs arg)
{
// setup uniforms
var now = DateTime.Now;
float time = (float)now.Subtract(this.lastTime).TotalMilliseconds * 0.001f;
this.SetUniform("time", time * timeElapsingSpeed);
this.SetUniform("rainDrop", this.rainDrop);
this.SetUniform("granularity", this.granularity);
mat4 projection = arg.Camera.GetProjectionMat4();
mat4 view = arg.Camera.GetViewMat4();
mat4 model = mat4.identity();
this.SetUniform("projectionMatrix", projection);
this.SetUniform("viewMatrix", view);
this.SetUniform("modelMatrix", model);
base.DoRender(arg);
}
private void glCanvas1_OpenGLDraw(object sender, PaintEventArgs e)
{
OpenGL.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT | OpenGL.GL_STENCIL_BUFFER_BIT);
RenderEventArgs arg = new RenderEventArgs(RenderModes.Render, this.glCanvas1.ClientRectangle, this.camera);
RaycastVolumeRenderer renderer = this.renderer;
if (renderer != null)
{
mat4 mvp = arg.Camera.GetProjectionMat4() * arg.Camera.GetViewMat4();
renderer.SetMVP(mvp);
renderer.Render(arg);
}
// Cross cursor shows where the mouse is.
OpenGL.DrawText(this.lastMousePosition.X - offset.X,
this.glCanvas1.Height - (this.lastMousePosition.Y + offset.Y) - 1,
Color.Red, "Courier New", crossCursorSize, "o");
}
/// <summary>
/// Build a look at view matrix.
/// </summary>
/// <param name="eye">The eye.</param>
/// <param name="center">The center.</param>
/// <param name="up">Up.</param>
/// <returns></returns>
public static mat4 lookAt(vec3 eye, vec3 center, vec3 up)
{
vec3 f = new vec3(normalize(center - eye));
vec3 s = new vec3(normalize(cross(f, up)));
vec3 u = new vec3(cross(s, f));
mat4 Result = new mat4(1);
Result[0, 0] = s.x;
Result[1, 0] = s.y;
Result[2, 0] = s.z;
Result[0, 1] = u.x;
Result[1, 1] = u.y;
Result[2, 1] = u.z;
Result[0, 2] = -f.x;
Result[1, 2] = -f.y;
Result[2, 2] = -f.z;
Result[3, 0] = -dot(s, eye);
Result[3, 1] = -dot(u, eye);
Result[3, 2] = dot(f, eye);
return Result;
}
public static void ApplyTransArrayParameters(OpenGL gl, ExtShaderProgram esp, mat4[] mats)
{
var prms = esp.Parameters as ITransformableParameters;
var p = esp.Program;
// Set the transformation matrix.
if (prms.TransformationMatrixId != null)
{
var m = new float[mats.Length][];
for (int i = 0; i < mats.Length; i++)
{
var mat = mats[i];
m[i] = new float[16];
m[i] = mat.to_array();
}
throw new NotImplementedException();
//p.set
//p.SetUniformMatrix4(gl, prms.TransformationMatrixId, m);
}
}
/// <summary>
/// Multiplies a 4x1 vector with a 4x4 transformation matrix.
/// </summary>
/// <param name="vec">The 4x1 vector.</param>
/// <param name="mat">The 4x4 matrix.</param>
/// <returns></returns>
public static vec4 Multiply(this vec4 vec, mat4 mat)
{
var pos = new vec4();
for (int i = 0; i < 4; i++)
{
float newPosVal = 0.0f;
for (int j = 0; j < 4; j++)
{
newPosVal += vec[j] * mat[j][i];
}
pos[i] = newPosVal;
}
return pos;
}
/// <summary>
/// Gets the transposed matrix.
/// <para>获取转置矩阵。</para>
/// </summary>
/// <param name="m"></param>
/// <returns></returns>
public static mat4 transpose(mat4 m)
{
vec4 col0 = m.col0;
vec4 col1 = m.col1;
vec4 col2 = m.col2;
vec4 col3 = m.col3;
return new mat4(
new vec4(col0.x, col1.x, col2.x, col3.x),
new vec4(col0.y, col1.y, col2.y, col3.y),
new vec4(col0.z, col1.z, col2.z, col3.z),
new vec4(col0.w, col1.w, col2.w, col3.w)
);
}
/// <summary>
/// Multiply matrix x by matrix y component-wise, i.e., result[i][j] is the scalar product of x[i][j] and y[i][j].
/// Note: to get linear algebraic matrix multiplication, use the multiply operator (*).
/// </summary>
protected mat4 matrixCompMult(mat4 x, mat4 y)
{
throw _invalidAccess;
}
/// <summary>Returns the determinant of m. </summary>
protected float determinant(mat4 m)
{
throw _invalidAccess;
}
/// <summary>
/// Returns a matrix that is the transpose of m.
/// The input matrix m is not modified.
/// </summary>
protected mat4 transpose(mat4 m)
{
throw _invalidAccess;
}
void overlayControl_Resized(object sender, EventArgs e)
{
var gl = overlayControl.OpenGL;
float top = 0f;
float bottom = (float)overlayControl.Height;
float left = 0f;
float right = (float)overlayControl.Width;
float far = 10f;
float near = -10f;
var col1 = new vec4(2 / (right - left), 0, 0, 0);
var col2 = new vec4(0, 2 / (top - bottom), 0, 0);
var col3 = new vec4(0, 0, -(2 / (far - near)), 0);
var col4 = new vec4(-((right + left) / (right - left)), -((top + bottom) / (top - bottom)), (far + near) / (far - near), 1);
projectionMatrix = new mat4(new vec4[] { col1, col2, col3, col4 });
}
public void BuildTurntableModelview(vec3 originPoint = new vec3())
{
var cosX = (float)Math.Cos(AngleX);
var cosY = (float)Math.Cos(AngleY);
var cosZ = (float)Math.Cos(AngleZ);
var sinX = (float)Math.Sin(AngleX);
var sinY = (float)Math.Sin(AngleY);
var sinZ = (float)Math.Sin(AngleZ);
mat4 rotX = new mat4(
new vec4[]
{
new vec4(1,0,0,0),
new vec4(0, cosX, -sinX, 0),
new vec4(0, sinX, cosX, 0),
new vec4(0,0,0,1)
});
mat4 rotY = new mat4(
new vec4[]
{
new vec4(cosY, 0, sinY, 0),
new vec4(0, 1, 0,0),
new vec4(-sinY, 0, cosY, 0),
new vec4(0,0,0,1)
});
var rotation = rotX * rotY;
var translation = rotation * glm.translate(mat4.identity(), new vec3(TranslationX + originPoint.x, TranslationY + originPoint.y, TranslationZ + originPoint.z));
var translation2 = glm.translate(translation, new vec3(-originPoint.x, -originPoint.y, -originPoint.z));
ModelviewMatrix = translation2;
}
protected void BeforeRendering(OpenGL gl, RenderMode renderMode)
{
IScientificCamera camera = this.camera;
if (camera != null)
{
if (camera.CameraType == CameraTypes.Perspecitive)
{
IPerspectiveViewCamera perspective = camera;
this.projectionMatrix = perspective.GetProjectionMat4();
this.viewMatrix = perspective.GetViewMat4();
}
else if (camera.CameraType == CameraTypes.Ortho)
{
IOrthoViewCamera ortho = camera;
this.projectionMatrix = ortho.GetProjectionMat4();
this.viewMatrix = ortho.GetViewMat4();
}
else
{ throw new NotImplementedException(); }
}
gl.Enable(OpenGL.GL_TEXTURE_2D);
this.texture.Bind(gl);
modelMatrix = glm.scale(mat4.identity(), new vec3(1, 1, this.ZAxisScale));
ShaderProgram shaderProgram = this.shaderProgram;
// Bind the shader, set the matrices.
shaderProgram.Bind(gl);
shaderProgram.SetUniformMatrix4(gl, "projectionMatrix", projectionMatrix.to_array());
shaderProgram.SetUniformMatrix4(gl, "viewMatrix", viewMatrix.to_array());
shaderProgram.SetUniformMatrix4(gl, "modelMatrix", modelMatrix.to_array());
shaderProgram.SetUniform1(gl, "tex", this.texture.TextureName);
shaderProgram.SetUniform1(gl, "brightness", this.Brightness);
shaderProgram.SetUniform1(gl, "opacity", this.Opacity);
gl.Enable(OpenGL.GL_POLYGON_SMOOTH);
gl.Hint(OpenGL.GL_POLYGON_SMOOTH_HINT, OpenGL.GL_NICEST);
}
void CreateAndDrawGrid(OpenGL GL)
{
// Debug.WriteLine("Painting Begins..");
// Create vertices for 4 lines that will split the figure into 3 equal sections
xgrid = new vec3[(C_NUM_Y_DIV + 1) * 2];
for (int i = 0; i < (C_NUM_Y_DIV + 1) * 2; i = i + 2)
{
xgrid[i].x = -1f; xgrid[i + 1].x = 1f;
xgrid[i].y = C_X_MARGIN_MIN + C_Y_STEP * i / 2; xgrid[i + 1].y = C_X_MARGIN_MIN + C_Y_STEP * i / 2;
xgrid[i].z = 0f; xgrid[i + 1].z = 0f;
}
coldata = new vec3[] {
GL.Color(DR.Color.White),
GL.Color(DR.Color.White),
GL.Color(DR.Color.White),
GL.Color(DR.Color.White),
GL.Color(DR.Color.White),
GL.Color(DR.Color.White),
GL.Color(DR.Color.White),
GL.Color(DR.Color.White),
GL.Color(DR.Color.White),
GL.Color(DR.Color.White),
GL.Color(DR.Color.White),
GL.Color(DR.Color.White),
GL.Color(DR.Color.White),
GL.Color(DR.Color.White),
GL.Color(DR.Color.White),
GL.Color(DR.Color.White)
};
mviewdata = new mat4(1.0f);
// --------------- Implementation WITH VERTEX ARRAY OBJECTS --------------------
//// Create the vertex array object.
vertexBufferArray = new VertexBufferArray();
vertexBufferArray.Create(GL);
vertexBufferArray.Bind(GL);
// Create a vertex buffer for the vertex data.
var vertexDataBuffer = new VertexBuffer();
vertexDataBuffer.Create(GL);
vertexDataBuffer.Bind(GL);
vertexDataBuffer.SetData(GL, attribute_vpos, xgrid, false, 3);
// Now do the same for the colour data.
var colourDataBuffer = new VertexBuffer();
colourDataBuffer.Create(GL);
colourDataBuffer.Bind(GL);
colourDataBuffer.SetData(GL, attribute_vcol, coldata, false, 3);
// Unbind the vertex array, we've finished specifying data for it.
vertexBufferArray.Unbind(GL);
// Bind the shader, set the matrices.
shaderProgram.Bind(GL);
//shaderProgram.SetUniformMatrix4(gl, "projectionMatrix", projectionMatrix.to_array());
//shaderProgram.SetUniformMatrix4(gl, "viewMatrix", viewMatrix.to_array());
shaderProgram.SetUniformMatrix4(GL, "modelview", mviewdata.to_array());
// Bind the out vertex array.
vertexBufferArray.Bind(GL);
GL.DrawArrays(OpenGL.GL_LINES, 0, 8);
// Unbind our vertex array and shader.
vertexBufferArray.Unbind(GL);
shaderProgram.Unbind(GL);
// --------------- Implementation WITH VERTEX ARRAY OBJECTS END --------------------
}
public void BufferData(OpenGL gl,
uint[] indices, float[] vertices, float[] normals,
mat4[] transformations, Material[] materials)
{
// Use the amount of transformations to decide how many particles of this object should be drawn.
ParticleCount = transformations.Length;
IndicesCount = indices.Length;
var tColSize = 4 * transformations.Length;
var color3Size = 3 * materials.Length;
float[] tCol1 = new float[tColSize],
tCol2 = new float[tColSize],
tCol3 = new float[tColSize],
tCol4 = new float[tColSize],
ambs = new float[color3Size],
diffs = new float[color3Size],
specs = new float[color3Size],
shinis = new float[materials.Length];
// Convert transformations to float arrays.
var newPos = 0;
foreach (var trans in transformations)
{
for (int i = 0; i < 4; i++)
{
tCol1[newPos] = trans[i][0];
tCol2[newPos] = trans[i][1];
tCol3[newPos] = trans[i][2];
tCol4[newPos] = trans[i][3];
newPos++;
}
}
// Convert materials to float arrays.
newPos = 0;
for (int i = 0; i < materials.Length; i++)
{
var mat = materials[i];
for (int j = 0; j < 3; j++)
{
ambs[newPos] = mat.Ambient[j+1];
diffs[newPos] = mat.Diffuse[j+1];
specs[newPos] = mat.Specular[j+1];
newPos++;
}
shinis[i] = mat.Shininess;
}
// Set buffer data.
BufferData(gl, indices, vertices, normals,
tCol1, tCol2, tCol3, tCol4,
ambs, diffs, specs, shinis);
}
/// <summary>
/// </summary>
/// <param name="uniformName"></param>
/// <param name="m"></param>
public int SetUniformMatrix4(string uniformName, mat4[] m)
{
int location = GetUniformLocation(uniformName);
if (location >= 0)
{
if (glUniformMatrix4fv == null) { glUniformMatrix4fv = OpenGL.GetDelegateFor<OpenGL.glUniformMatrix4fv>(); }
var values = new float[m.Length * 16];
for (int index = 0, i = 0; i < m.Length; i++)
{
float[] array = m[i].ToArray();
for (int j = 0; j < 16; j++)
{
values[index++] = array[j];
}
}
glUniformMatrix4fv(location, m.Length / 16, false, values);
}
return location;
}
private void overlayControl_Draw(object sender, RenderEventArgs args)
{
if (Form.ActiveForm != null)
{
if (Keyboard.IsKeyDown(Key.Escape))
{
Application.Exit();
}
}
var gl = overlayControl.OpenGL;
gl.ClearColor(0.0f, 0.0f, 0.0f, 0.0f);
gl.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT | OpenGL.GL_STENCIL_BUFFER_BIT);
if (shaderProgram == null)
{
return;
}
var curTime = DateTime.UtcNow;
float delta = (curTime - lastTime).Ticks / 50000.0f;
lastTime = curTime;
var userOffsetModel = glm.translate(mat4.identity(), new vec3(offsetX, offsetY, 0));
var scaledModel = glm.scale(userOffsetModel, new vec3(scale, scale, 1.0f));
modelMatrix = scaledModel;
shaderProgram.Bind(gl);
shaderProgram.SetUniformMatrix4(gl, "projectionMatrix", projectionMatrix.to_array());
shaderProgram.SetUniformMatrix4(gl, "modelMatrix", modelMatrix.to_array());
Renderable readyRenderable = null;
if( this.ready_renderables.TryTake(out readyRenderable)){
Debug.WriteLine("setting up : " + readyRenderable.description);
readyRenderable.Setup(gl);
this.active_renderables.Add(readyRenderable);
}
Renderable unloadRenderable = null;
if (this.unload_renderables.TryTake(out unloadRenderable))
{
Debug.WriteLine("tearing down : " + unloadRenderable.description);
unloadRenderable.Teardown(gl);
}
var sortedRenderables = this.active_renderables.OrderByDescending(x => x is RadarScan);
foreach (var renderable in sortedRenderables)
{
renderable.Draw(gl);
}
shaderProgram.Unbind(gl);
var now = DateTime.UtcNow;
frameCount++;
if ((now - startTime).TotalSeconds > 1)
{
// 1 second has passed. print out frames.
//Debug.WriteLine(frameCount + " frames per second");
startTime = now;
frameCount = 0;
}
}
/// <summary>
/// Slightly edited formula!
/// </summary>
public void BuildPerspectiveProjection()
{
var a = Height / Width;
var n = Near;
var f = Far;
var e = 1 / (float)Math.Tan(FovRadians / 2);
var mat = new mat4(
new vec4[]
{
new vec4(e, 0, 0, 0),
new vec4(0, e/a, 0, 0),
new vec4(0, 0, -(2*f*n)/(f-n), -1),
new vec4(0, 0, -(f+n)/(f-n), 0),
});
ProjectionMatrix = mat;
}
public void loadProjectionMatrix(mat4 projection)
{
base.loadMatrix(Locations["projectionMatrix"], projection);
}
public void loadTransformationMatrix(mat4 matrix)
{
base.loadMatrix(Locations["transformationMatrix"], matrix);
}
/// <summary>initialized the matrix with the upperleft part of m</summary>
public mat4x3(mat4 m)
{
throw _invalidAccess;
}