/// <summary> Constructor. </summary>
/// <param name="a_oShaderProgram"> The shader program to use. </param>
/// <param name="a_v2Pos"> The position of the quad (centre). </param>
/// <param name="a_v2Size"> Size of the Quad. </param>
/// <param name="a_oColor"> The color to apply to the quad. </param>
/// <param name="a_szTexture"> (optional) the texture file. </param>
public GLQuad(GLShader a_oShaderProgram, Vector3 a_v3Pos, Vector2 a_v2Size, System.Drawing.Color a_oColor, string a_szTexture = "")
: base()
{
// Setup Member Vars:
m_v2Size = a_v2Size;
m_v3Position = a_v3Pos;
m_oShaderProgram = a_oShaderProgram;
m_m4ModelMatrix = Matrix4.Identity;
///< @todo make quads scale better, so it can scale on X or Y...
m_m4ModelMatrix = Matrix4.Scale(m_v2Size.X) * Matrix4.CreateTranslation(a_v3Pos); // x and y should be the same, so scale by X
if (a_szTexture != "")
{
// We can assuem we have been provided with a texture to load:
m_uiTextureID = Helpers.ResourceManager.Instance.LoadTexture(a_szTexture);
}
else
{
m_uiTextureID = 0; // set texture to none!
}
// calculate the Y scale to X, as we are using X for our scale in our matrix.
float fYScale = 1;
if (a_v2Size.X != 0)
{
fYScale = a_v2Size.Y / a_v2Size.X;
}
//setup our quads vertcies:
m_aoVerticies = new GLVertex[4];
m_aoVerticies[0] = new GLVertex(new Vector3(-0.5f, -0.5f * fYScale, 0.0f), a_oColor, new Vector2(0.0f, 1.0f));
m_aoVerticies[1] = new GLVertex(new Vector3(0.5f, -0.5f * fYScale, 0.0f), a_oColor, new Vector2(1.0f, 1.0f));
m_aoVerticies[2] = new GLVertex(new Vector3(-0.5f, 0.5f * fYScale, 0.0f), a_oColor, new Vector2(0.0f, 0.0f));
m_aoVerticies[3] = new GLVertex(new Vector3(0.5f, 0.5f * fYScale, 0.0f), a_oColor, new Vector2(1.0f, 0.0f));
// Setup Draw order. *this apears to have no effect under GL2.X*
m_auiIndicies = new ushort[4];
m_auiIndicies[0] = 0;
m_auiIndicies[1] = 1;
m_auiIndicies[2] = 2;
m_auiIndicies[3] = 3;
// tell OpenGL about our VBOs:
GL.GenVertexArrays(1, out m_uiVextexArrayHandle); // Generate Our Vertex Array and get the handle to it.
GL.BindVertexArray(m_uiVextexArrayHandle); // Lets OpenGL that this is the current "active" vertex array.
//#if DEBUG
// logger.Info("OpenGL Generate VAO: " + GL.GetError().ToString());
//#endif
GL.GenBuffers(1, out m_uiVertexBufferHandle); // Generate our Vertex Buffer Object and get the handle to it.
GL.BindBuffer(BufferTarget.ArrayBuffer, m_uiVertexBufferHandle); // Lets Open GL know that this is the current active buffer object.
GL.BufferData <GLVertex>(BufferTarget.ArrayBuffer, new IntPtr(m_aoVerticies.Length * GLVertex.SizeInBytes()), m_aoVerticies, BufferUsageHint.StaticDraw); // tells OpenGL about the structure of the data.
//#if DEBUG
// logger.Info("OpenGL Generate VBO: " + GL.GetError().ToString());
//#endif
GL.GenBuffers(1, out m_uiIndexBufferHandle); //Generate Our index Buffer and get handle to it.
GL.BindBuffer(BufferTarget.ElementArrayBuffer, m_uiIndexBufferHandle); // Lets Open GL know that this is the current active buffer object.
GL.BufferData(BufferTarget.ElementArrayBuffer, new IntPtr(m_auiIndicies.Length * sizeof(ushort)), m_auiIndicies, BufferUsageHint.StaticDraw); // Tells OpenGL how the data is structured.
//#if DEBUG
// logger.Info("OpenGL Generate EBO: " + GL.GetError().ToString());
//#endif
GL.BindBuffer(BufferTarget.ArrayBuffer, m_uiVertexBufferHandle); // Switch back to our Buffer Object as the current buffer.
GL.VertexAttribPointer(0, 3, VertexAttribPointerType.Float, false, GLVertex.SizeInBytes(), 0); // Tells OpenGL about the first three doubles in the vbo, i.e the position of the vertex.
GL.VertexAttribPointer(1, 4, VertexAttribPointerType.HalfFloat, true, GLVertex.SizeInBytes(), Vector3.SizeInBytes); // tells OpenGL about the 4 half floats used to repesent color.
GL.VertexAttribPointer(2, 2, VertexAttribPointerType.Float, false, GLVertex.SizeInBytes(), (Vector3.SizeInBytes + Vector4h.SizeInBytes)); // tells OpenGL about the 2 floats in the vertgexc used to repesent UV coords.
//#if DEBUG
// logger.Info("OpenGL Create Vertes Attribute Pointers: " + GL.GetError().ToString());
//#endif
// Turn on the Vertex Attribs:
GL.EnableVertexAttribArray(0);
GL.EnableVertexAttribArray(1);
GL.EnableVertexAttribArray(2);
// #if DEBUG
// logger.Info("OpenGL Create Quad Primitive: " + GL.GetError().ToString());
//#endif
}
/// <summary> Constructor. </summary>
/// <param name="a_oShaderProgram"> The Shader program to use when rendering. </param>
/// <param name="a_v3Pos"> The Position of the circle. </param>
/// <param name="a_fRadus"> The Radius of the circle. </param>
/// <param name="a_oColor"> The color of the circle. </param>
/// <param name="a_szTexture"> (optional) the texture file. </param>
public GLCircle(GLShader a_oShaderProgram, Vector3 a_v3Pos, float a_fRadus, System.Drawing.Color a_oColor, string a_szTexture = "")
: base()
{
// Save some stuff to member vars:
m_v3Position = a_v3Pos;
m_v2Size.X = a_fRadus;
// calculate the number of verts, min is 90 for a good looking circle, max is 360 for performace reasons.
int iNumOfVerts = (int)(a_fRadus * MathHelper.PiOver4);
if (iNumOfVerts < 90)
{
iNumOfVerts = 90;
}
else if (iNumOfVerts > 360)
{
iNumOfVerts = 360;
}
// create some working vars:
double dAngle;
float fX, fY;
//create our Vertex and index arrays:
m_aoVerticies = new GLVertex[iNumOfVerts];
m_auiIndicies = new ushort[iNumOfVerts + 1]; // make this one longer so it can loop back around to the begining!!
for (int i = 0; i < iNumOfVerts; ++i)
{
dAngle = i * (MathHelper.TwoPi / iNumOfVerts);
fX = (float)Math.Cos(dAngle) * 1;
fY = (float)Math.Sin(dAngle) * 1;
m_aoVerticies[i].m_v3Position.X = fX;
m_aoVerticies[i].m_v3Position.Y = fY;
m_aoVerticies[i].m_v3Position.Z = 0;
m_aoVerticies[i].SetColor(a_oColor);
m_auiIndicies[i] = (ushort)i;
}
// set last index:
m_auiIndicies[iNumOfVerts] = 0;
// Setup Matrix:
m_m4ModelMatrix = Matrix4.Scale(a_fRadus * 2) * Matrix4.CreateTranslation(a_v3Pos);
// Set our shader program:
m_oShaderProgram = a_oShaderProgram;
// Load texture if specified:
if (a_szTexture != "")
{
// We can assuem we have been provided with a texture to load:
m_uiTextureID = Helpers.ResourceManager.Instance.LoadTexture(a_szTexture);
}
else
{
m_uiTextureID = 0; // set texture to none!
}
// tell Opgl about our VBOs:
GL.GenVertexArrays(1, out m_uiVextexArrayHandle); // Generate Our Vertex Array and get the handle to it.
GL.BindVertexArray(m_uiVextexArrayHandle); // Lets OpenGL that this is the current "active" vertex array.
//#if DEBUG
// logger.Info("OpenGL Generate VAO: " + GL.GetError().ToString());
//#endif
GL.GenBuffers(1, out m_uiVertexBufferHandle); // Generate our Vertex Buffer Object and get the handle to it.
GL.BindBuffer(BufferTarget.ArrayBuffer, m_uiVertexBufferHandle); // Lets Open GL know that this is the current active buffer object.
GL.BufferData <GLVertex>(BufferTarget.ArrayBuffer, new IntPtr(m_aoVerticies.Length * GLVertex.SizeInBytes()), m_aoVerticies, BufferUsageHint.StaticDraw); // tells OpenGL about the structure of the data.
//#if DEBUG
// logger.Info("OpenGL Generate VBO: " + GL.GetError().ToString());
//#endif
GL.GenBuffers(1, out m_uiIndexBufferHandle); //Generate Our index Buffer and get handle to it.
GL.BindBuffer(BufferTarget.ElementArrayBuffer, m_uiIndexBufferHandle); // Lets Open GL know that this is the current active buffer object.
GL.BufferData(BufferTarget.ElementArrayBuffer, new IntPtr(m_auiIndicies.Length * sizeof(ushort)), m_auiIndicies, BufferUsageHint.StaticDraw); // Tells OpenGL how the data is structured.
//#if DEBUG
// logger.Info("OpenGL Generate EBO: " + GL.GetError().ToString());
//#endif
GL.BindBuffer(BufferTarget.ArrayBuffer, m_uiVertexBufferHandle); // Switch back to our Buffer Object as the current buffer.
GL.VertexAttribPointer(0, 3, VertexAttribPointerType.Float, false, GLVertex.SizeInBytes(), 0); // Tells OpenGL about the first three doubles in the vbo, i.e the position of the vertex.
GL.VertexAttribPointer(1, 4, VertexAttribPointerType.HalfFloat, true, GLVertex.SizeInBytes(), Vector3.SizeInBytes); // tells OpenGL about the 4 half floats used to repesent color.
GL.VertexAttribPointer(2, 2, VertexAttribPointerType.Float, false, GLVertex.SizeInBytes(), (Vector3.SizeInBytes + Vector4h.SizeInBytes)); // tells OpenGL about the 2 floats in the vertgexc used to repesent UV coords.
//#if DEBUG
// logger.Info("OpenGL Create Vertes Attribute Pointers: " + GL.GetError().ToString());
//#endif
// Turn on the Vertex Attribs:
GL.EnableVertexAttribArray(0);
GL.EnableVertexAttribArray(1);
GL.EnableVertexAttribArray(2);
// #if DEBUG
// logger.Info("OpenGL Create Circle Primitive: " + GL.GetError().ToString());
//#endif
}
public override void UpdateVBOs()
{
GL.BindVertexArray(m_uiVextexArrayHandle);
GL.BindBuffer(BufferTarget.ArrayBuffer, m_uiVertexBufferHandle); // Lets Open GL know that this is the current active buffer object.
GL.BufferData <GLVertex>(BufferTarget.ArrayBuffer, new IntPtr(m_aoVerticies.Length * GLVertex.SizeInBytes()), m_aoVerticies, BufferUsageHint.StaticDraw); // tells OpenGL about the structure of the data.
GL.BindBuffer(BufferTarget.ElementArrayBuffer, m_uiIndexBufferHandle); // Lets Open GL know that this is the current active buffer object.
GL.BufferData(BufferTarget.ElementArrayBuffer, new IntPtr(m_auiIndicies.Length * sizeof(ushort)), m_auiIndicies, BufferUsageHint.StaticDraw); // Tells OpenGL how the data is structured.
}
public GLCircle(GLShader a_oShaderProgram, Vector3 a_v3Pos, OrbitingEntity a_oOrbitEntity, System.Drawing.Color a_oColor, string a_szTexture = "")
: base()
{
// Save some stuff to member vars:
double dKMperAUdevby10 = (Pulsar4X.Constants.Units.KM_PER_AU / 10); // we scale everthing down by 10 to avoid float buffer overflows.
m_v3Position = a_v3Pos;
m_v2Size.X = (float)(a_oOrbitEntity.SemiMajorAxis * dKMperAUdevby10);
// set verts to 360, looks good at any zoom.
int iNumOfVerts = 360;
// create some working vars:
double dAngle;
double dX, dY;
//create our Vertex and index arrays:
m_aoVerticies = new GLVertex[iNumOfVerts];
m_auiIndicies = new ushort[iNumOfVerts + 1]; // make this one longer so it can loop back around to the begining!!
for (int i = 0; i < iNumOfVerts; ++i)
{
dAngle = i * (MathHelper.TwoPi / iNumOfVerts);
OrbitTable.Instance.FindCordsFromAngle(a_oOrbitEntity, dAngle, out dX, out dY);
m_aoVerticies[i].m_v3Position.X = (float)(dX / a_oOrbitEntity.SemiMajorAxis);
m_aoVerticies[i].m_v3Position.Y = (float)(dY / a_oOrbitEntity.SemiMajorAxis);
m_aoVerticies[i].m_v3Position.Z = 0;
m_aoVerticies[i].SetColor(a_oColor);
m_auiIndicies[i] = (ushort)i;
}
// set last index:
m_auiIndicies[iNumOfVerts] = 0;
// Setup Matrix:
m_m4ModelMatrix = Matrix4.Scale(m_v2Size.X) * Matrix4.CreateTranslation(a_v3Pos);
// Set our shader program:
m_oShaderProgram = a_oShaderProgram;
// Load texture if specified:
if (a_szTexture != "")
{
// We can assuem we have been provided with a texture to load:
m_uiTextureID = Helpers.ResourceManager.Instance.LoadTexture(a_szTexture);
}
else
{
m_uiTextureID = 0; // set texture to none!
}
// tell Opgl about our VBOs:
GL.GenVertexArrays(1, out m_uiVextexArrayHandle); // Generate Our Vertex Array and get the handle to it.
GL.BindVertexArray(m_uiVextexArrayHandle); // Lets OpenGL that this is the current "active" vertex array.
//#if DEBUG
// logger.Info("OpenGL Generate VAO: " + GL.GetError().ToString());
//#endif
GL.GenBuffers(1, out m_uiVertexBufferHandle); // Generate our Vertex Buffer Object and get the handle to it.
GL.BindBuffer(BufferTarget.ArrayBuffer, m_uiVertexBufferHandle); // Lets Open GL know that this is the current active buffer object.
GL.BufferData <GLVertex>(BufferTarget.ArrayBuffer, new IntPtr(m_aoVerticies.Length * GLVertex.SizeInBytes()), m_aoVerticies, BufferUsageHint.StaticDraw); // tells OpenGL about the structure of the data.
//#if DEBUG
// logger.Info("OpenGL Generate VBO: " + GL.GetError().ToString());
//#endif
GL.GenBuffers(1, out m_uiIndexBufferHandle); //Generate Our index Buffer and get handle to it.
GL.BindBuffer(BufferTarget.ElementArrayBuffer, m_uiIndexBufferHandle); // Lets Open GL know that this is the current active buffer object.
GL.BufferData(BufferTarget.ElementArrayBuffer, new IntPtr(m_auiIndicies.Length * sizeof(ushort)), m_auiIndicies, BufferUsageHint.StaticDraw); // Tells OpenGL how the data is structured.
//#if DEBUG
// logger.Info("OpenGL Generate EBO: " + GL.GetError().ToString());
//#endif
GL.BindBuffer(BufferTarget.ArrayBuffer, m_uiVertexBufferHandle); // Switch back to our Buffer Object as the current buffer.
GL.VertexAttribPointer(0, 3, VertexAttribPointerType.Float, false, GLVertex.SizeInBytes(), 0); // Tells OpenGL about the first three doubles in the vbo, i.e the position of the vertex.
GL.VertexAttribPointer(1, 4, VertexAttribPointerType.HalfFloat, true, GLVertex.SizeInBytes(), Vector3.SizeInBytes); // tells OpenGL about the 4 half floats used to repesent color.
GL.VertexAttribPointer(2, 2, VertexAttribPointerType.Float, false, GLVertex.SizeInBytes(), (Vector3.SizeInBytes + Vector4h.SizeInBytes)); // tells OpenGL about the 2 floats in the vertgexc used to repesent UV coords.
//#if DEBUG
// logger.Info("OpenGL Create Vertes Attribute Pointers: " + GL.GetError().ToString());
//#endif
// Turn on the Vertex Attribs:
GL.EnableVertexAttribArray(0);
GL.EnableVertexAttribArray(1);
GL.EnableVertexAttribArray(2);
// #if DEBUG
// logger.Info("OpenGL Create Circle Primitive: " + GL.GetError().ToString());
//#endif
}