public static SVertex2D FromArray(float[] anArray)
{
if (anArray.Length != 5)
{
throw new ArgumentException("Needs to be an array of length 5");
}
SVertex2D tempSVertex2D = new SVertex2D()
{
x = anArray[0],
y = anArray[1],
z = anArray[2],
u = anArray[3],
v = anArray[4]
};
return(tempSVertex2D);
}
private void GenerateGeometry()
{
numberOfVerticesPerTile = gQuad.Length;
Stopwatch watch = Stopwatch.StartNew();
Dictionary <Tile.TileIds, Bitmap> tempTiletypeList =
RenderObjects.RenderObjects.CreateTileBitmaps(new Size(256, 256));
List <ObjObject> tempObjList = new List <ObjObject>();
Tile[] tempTiles = theMap.TheTileArray;
numberOfTiles = tempTiles.Length;
int numberOfTextures = tempTiletypeList.Count;
// Number of values in SVertex2D
stride = 5;
SVertex2D[] vVertex = new SVertex2D[numberOfTiles * numberOfVerticesPerTile];
// n tiles
// 6 SVertex2D vectors per tile
// 5 (stride) entries per SVertex2D
int index = 0;
foreach (Tile tempTile in tempTiles)
{
Vector tempLoc = tempTile.Location;
for (int k = 0; k != numberOfVerticesPerTile; ++k)
{
vVertex[index].x = gQuad[k].x + tempLoc.X;
vVertex[index].y = gQuad[k].y;
vVertex[index].z = gQuad[k].z + tempLoc.Y;
vVertex[index].u = gQuad[k].u;
vVertex[index].v = gQuad[k].v;
index++;
}
}
// Copy into float array
float[] verteses = new float[numberOfTiles * stride * numberOfVerticesPerTile];
index = 0;
for (int i = 0; i < vVertex.Count(); i++)
{
verteses[index] = vVertex[i].x;
verteses[index + 1] = vVertex[i].y;
verteses[index + 2] = vVertex[i].z;
verteses[index + 3] = vVertex[i].u;
verteses[index + 4] = vVertex[i].v;
index += stride;
}
// Bind the buffers
gVertexBuffer = new VBO <float>(verteses, BufferTarget.ArrayBuffer);
Gl.BindBuffer(gVertexBuffer);
locationPosition = (uint)Gl.GetAttribLocation(program.ProgramID, "position");
locationTexCoord = (uint)Gl.GetAttribLocation(program.ProgramID, "texCoord");
// int tempStride = sizeof(Single) * stride; // *****
//
// Gl.EnableVertexAttribArray(locationPosition);
// Gl.VertexAttribPointer(locationPosition, 3, VertexAttribPointerType.Float, false, tempStride,
// IntPtr.Zero);
//
// Gl.EnableVertexAttribArray(locationTexCoord);
// Gl.VertexAttribPointer(locationTexCoord, 2, VertexAttribPointerType.Float, false, tempStride,
// new IntPtr(3 * sizeof(Single)));
//
//
CreateTileIdVbo(tempTiles);
watch.Stop();
GameCore.TheGameCore.RaiseMessage(string.Format("CreateTiles() took {0}ms", watch.ElapsedMilliseconds));
}
private void GenerateGeometry()
{
Stopwatch watch = Stopwatch.StartNew();
Dictionary <Tile.TileIds, Bitmap> tempTiletypeList =
RenderObjects.RenderObjects.CreateTileBitmaps(new Size(256, 256));
List <ObjObject> tempObjList = new List <ObjObject>();
Tile[] tempTiles = theMap.TheTileArray;
numberOfTiles = tempTiles.Count();
int numberOfTextures = tempTiletypeList.Count;
// Number of values in SVertex2D
stride = 5;
SVertex2D[] vVertex = new SVertex2D[numberOfTiles * 4];
// n tiles
// 4 SVertex2D vectors per tile
// 5 (stride) entries per SVertex2D
int index = 0;
foreach (Tile tempTile in tempTiles)
{
Vector tempLoc = tempTile.Location;
for (int k = 0; k != 4; ++k)
{
vVertex[index].x = gQuad[k].x + tempLoc.X;
vVertex[index].y = gQuad[k].y;
vVertex[index].z = gQuad[k].z + tempLoc.Y;
vVertex[index].u = gQuad[k].u;
vVertex[index].v = gQuad[k].v;
index++;
}
}
// Copy into float array
float[] verteses = new float[numberOfTiles * stride * 4];
index = 0;
for (int i = 0; i < vVertex.Count(); i++)
{
verteses[index] = vVertex[i].x;
verteses[index + 1] = vVertex[i].y;
verteses[index + 2] = vVertex[i].z;
verteses[index + 3] = vVertex[i].u;
verteses[index + 4] = vVertex[i].v;
index += stride;
}
// Bind the buffers
gVertexBuffer = new VBO <float>(verteses, BufferTarget.ArrayBuffer);
Gl.BindBuffer(gVertexBuffer);
locationPosition = (uint)Gl.GetAttribLocation(program.ProgramID, "position");
locationTexCoord = (uint)Gl.GetAttribLocation(program.ProgramID, "texCoord");
gElementBuffer = new VBO <int>(gIndex, BufferTarget.ElementArrayBuffer);
Gl.BindBuffer(gElementBuffer);
//Generate draw commands
SDrawElementsCommand[] vDrawCommand = new SDrawElementsCommand[numberOfTiles];
for (uint i = 0; i < numberOfTiles; ++i)
{
vDrawCommand[i].vertexCount = 6;
vDrawCommand[i].instanceCount = 1;
vDrawCommand[i].firstIndex = 0;
vDrawCommand[i].baseVertex = (uint)(i * 4); //****
vDrawCommand[i].baseInstance = i;
}
// Copy into float array
//Generate draw commands
int vDrawCommanStride = 5;
int[] vDrawCommandArray = new int[numberOfTiles * vDrawCommanStride];
index = 0;
for (int i = 0; i < vDrawCommand.Count(); i++)
{
vDrawCommandArray[index] = (int)vDrawCommand[i].vertexCount;
vDrawCommandArray[index + 1] = (int)vDrawCommand[i].instanceCount;
vDrawCommandArray[index + 2] = (int)vDrawCommand[i].firstIndex;
vDrawCommandArray[index + 3] = (int)vDrawCommand[i].baseVertex;
vDrawCommandArray[index + 4] = (int)vDrawCommand[i].baseInstance;
index += vDrawCommanStride;
}
gIndirectBuffer = new VBO <int>(vDrawCommandArray, BufferTarget.DrawIndirectBuffer,
BufferUsageHint.StaticDraw);
Gl.BindBuffer(gIndirectBuffer);
//Generate an instanced vertex array to identify each draw call in the shader
float[] vDrawId = new float[numberOfTiles];
index = 0;
foreach (Tile aTile in tempTiles)
{
vDrawId[index] = (int)aTile.TheTileId;
index++;
}
// for (UInt32 i = 0; i < numberOfTiles; i++)
// {
// vDrawId[i] = i;
// }
gDrawIdBuffer = new VBO <float>(vDrawId, VertexAttribPointerType.Float, BufferTarget.ArrayBuffer,
BufferUsageHint.StaticDraw);
Gl.BindBuffer(gDrawIdBuffer);
locationDrawid = (uint)Gl.GetAttribLocation(program.ProgramID, "drawTexId");
watch.Stop();
GameCore.TheGameCore.RaiseMessage(string.Format("CreateTiles() took {0}ms", watch.ElapsedMilliseconds));
}