public void SetData(TriangleBuffer triangles, BufferUsageHint usageHint)
{
_indexCount = triangles.IndexCount;
if (_indexCount % 3 != 0)
{
throw new IndexOutOfRangeException("Number of index entries must be divisible by 3.");
}
if (_indexCount == 0)
{
Dispose();
return;
}
if (_vertexArray == 0)
{
_vertexArray = GL.GenVertexArray();
_elementArrayBuffer = GL.GenBuffer();
_arrayBuffer = GL.GenBuffer();
GL.BindVertexArray(_vertexArray);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, _elementArrayBuffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, _arrayBuffer);
_specification.Bind();
}
else
{
GL.BindBuffer(BufferTarget.ElementArrayBuffer, _elementArrayBuffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, _arrayBuffer);
}
triangles.UploadData(usageHint);
}
public void SetData(TriangleBuffer triangles, BufferUsageHint usageHint)
{
_indexCount = triangles.IndexCount;
if (_indexCount % 3 != 0) throw new IndexOutOfRangeException("Number of index entries must be divisible by 3.");
if (_indexCount == 0)
{
Dispose();
return;
}
if (_vertexArray == 0)
{
_vertexArray = GL.GenVertexArray();
_elementArrayBuffer = GL.GenBuffer();
_arrayBuffer = GL.GenBuffer();
GL.BindVertexArray(_vertexArray);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, _elementArrayBuffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, _arrayBuffer);
_specification.Bind();
}
else
{
GL.BindBuffer(BufferTarget.ElementArrayBuffer, _elementArrayBuffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, _arrayBuffer);
}
triangles.UploadData(usageHint);
}
private void DrawBlockBottom(TriangleBuffer buffer, WorldTextureAtlas.TextureEntry textureEntry, float x, float y, float z, float highlight)
{
buffer.Triangle(0, 1, 3);
buffer.Triangle(3, 1, 2);
buffer.VertexFloat(x - 0.5f, y - 0.5f, z + 0.5f); buffer.VertexUInt16(textureEntry.X0, textureEntry.Y0); buffer.VertexColorBytes(0.33f, 0.33f, 0.33f, highlight); buffer.EndVertex();
buffer.VertexFloat(x - 0.5f, y - 0.5f, z - 0.5f); buffer.VertexUInt16(textureEntry.X0, textureEntry.Y1); buffer.VertexColorBytes(0.33f, 0.33f, 0.33f, highlight); buffer.EndVertex();
buffer.VertexFloat(x + 0.5f, y - 0.5f, z - 0.5f); buffer.VertexUInt16(textureEntry.X1, textureEntry.Y1); buffer.VertexColorBytes(0.33f, 0.33f, 0.33f, highlight); buffer.EndVertex();
buffer.VertexFloat(x + 0.5f, y - 0.5f, z + 0.5f); buffer.VertexUInt16(textureEntry.X1, textureEntry.Y0); buffer.VertexColorBytes(0.33f, 0.33f, 0.33f, highlight); buffer.EndVertex();
}
private void DrawEntity(TriangleBuffer buffer, float x, float y, float z, float xRadius, float height)
{
var textureEntry = _textureAtlas.GetTextureEntry(0);
buffer.Triangle(0, 1, 3);
buffer.Triangle(3, 1, 2);
buffer.VertexFloat(x - xRadius, y, z + xRadius); buffer.VertexUInt16(textureEntry.X0, textureEntry.Y0); buffer.VertexByte(217, 217, 217, 0); buffer.EndVertex();
buffer.VertexFloat(x + xRadius, y, z + xRadius); buffer.VertexUInt16(textureEntry.X1, textureEntry.Y0); buffer.VertexByte(217, 217, 217, 0); buffer.EndVertex();
buffer.VertexFloat(x + xRadius, y + height, z + xRadius); buffer.VertexUInt16(textureEntry.X1, textureEntry.Y1); buffer.VertexByte(217, 217, 217, 0); buffer.EndVertex();
buffer.VertexFloat(x - xRadius, y + height, z + xRadius); buffer.VertexUInt16(textureEntry.X0, textureEntry.Y1); buffer.VertexByte(217, 217, 217, 0); buffer.EndVertex();
buffer.Triangle(0, 1, 3);
buffer.Triangle(3, 1, 2);
buffer.VertexFloat(x + xRadius, y, z + xRadius); buffer.VertexUInt16(textureEntry.X0, textureEntry.Y0); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.VertexFloat(x + xRadius, y, z - xRadius); buffer.VertexUInt16(textureEntry.X1, textureEntry.Y0); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.VertexFloat(x + xRadius, y + height, z - xRadius); buffer.VertexUInt16(textureEntry.X1, textureEntry.Y1); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.VertexFloat(x + xRadius, y + height, z + xRadius); buffer.VertexUInt16(textureEntry.X0, textureEntry.Y1); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.Triangle(0, 1, 3);
buffer.Triangle(3, 1, 2);
buffer.VertexFloat(x + xRadius, y, z - xRadius); buffer.VertexUInt16(textureEntry.X0, textureEntry.Y0); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.VertexFloat(x - xRadius, y, z - xRadius); buffer.VertexUInt16(textureEntry.X1, textureEntry.Y0); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.VertexFloat(x - xRadius, y + height, z - xRadius); buffer.VertexUInt16(textureEntry.X1, textureEntry.Y1); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.VertexFloat(x + xRadius, y + height, z - xRadius); buffer.VertexUInt16(textureEntry.X0, textureEntry.Y1); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.Triangle(0, 1, 3);
buffer.Triangle(3, 1, 2);
buffer.VertexFloat(x - xRadius, y, z - xRadius); buffer.VertexUInt16(textureEntry.X0, textureEntry.Y0); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.VertexFloat(x - xRadius, y, z + xRadius); buffer.VertexUInt16(textureEntry.X1, textureEntry.Y0); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.VertexFloat(x - xRadius, y + height, z + xRadius); buffer.VertexUInt16(textureEntry.X1, textureEntry.Y1); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.VertexFloat(x - xRadius, y + height, z - xRadius); buffer.VertexUInt16(textureEntry.X0, textureEntry.Y1); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.Triangle(0, 1, 3);
buffer.Triangle(3, 1, 2);
buffer.VertexFloat(x - xRadius, y, z + xRadius); buffer.VertexUInt16(textureEntry.X0, textureEntry.Y0); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.VertexFloat(x - xRadius, y, z - xRadius); buffer.VertexUInt16(textureEntry.X1, textureEntry.Y0); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.VertexFloat(x + xRadius, y, z - xRadius); buffer.VertexUInt16(textureEntry.X1, textureEntry.Y1); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.VertexFloat(x + xRadius, y, z + xRadius); buffer.VertexUInt16(textureEntry.X0, textureEntry.Y1); buffer.VertexByte(178, 204, 230, 0); buffer.EndVertex();
buffer.Triangle(0, 1, 3);
buffer.Triangle(3, 1, 2);
buffer.VertexFloat(x - xRadius, y + height, z + xRadius); buffer.VertexUInt16(textureEntry.X0, textureEntry.Y0); buffer.VertexByte(255, 255, 255, 0); buffer.EndVertex();
buffer.VertexFloat(x + xRadius, y + height, z + xRadius); buffer.VertexUInt16(textureEntry.X1, textureEntry.Y0); buffer.VertexByte(255, 255, 255, 0); buffer.EndVertex();
buffer.VertexFloat(x + xRadius, y + height, z - xRadius); buffer.VertexUInt16(textureEntry.X1, textureEntry.Y1); buffer.VertexByte(255, 255, 255, 0); buffer.EndVertex();
buffer.VertexFloat(x - xRadius, y + height, z - xRadius); buffer.VertexUInt16(textureEntry.X0, textureEntry.Y1); buffer.VertexByte(255, 255, 255, 0); buffer.EndVertex();
}
private void RenderChunk(TriangleBuffer buffer, Chunk chunk)
{
var offset = chunk.Pos - new BlockPos(0, 0, 0);
float xOffset = offset.X + 0.5f;
float yOffset = offset.Y + 0.5f;
float zOffset = offset.Z + 0.5f;
for (int y = GeometryConstants.ChunkSize - 1; y >= 0; --y)
{
for (int x = 0; x < GeometryConstants.ChunkSize; ++x)
{
for (int z = 0; z < GeometryConstants.ChunkSize; ++z)
{
ushort material = chunk[x, y, z];
if (material != 0)
{
var textureEntry = _textureAtlas.GetTextureEntry(material);
float x1 = x + xOffset, y1 = y + yOffset, z1 = z + zOffset;
if (x == 0 || chunk[x - 1, y, z] == 0) DrawBlockLeft(buffer, textureEntry, x1, y1, z1, 0);
if (x == GeometryConstants.ChunkSize - 1 || chunk[x + 1, y, z] == 0) DrawBlockRight(buffer, textureEntry, x1, y1, z1, 0);
if (y == 0 || chunk[x, y - 1, z] == 0) DrawBlockBottom(buffer, textureEntry, x1, y1, z1, 0);
if (y == GeometryConstants.ChunkSize - 1 || chunk[x, y + 1, z] == 0) DrawBlockTop(buffer, textureEntry, x1, y1, z1, 0);
if (z == 0 || chunk[x, y, z - 1] == 0) DrawBlockBack(buffer, textureEntry, x1, y1, z1, 0);
if (z == GeometryConstants.ChunkSize - 1 || chunk[x, y, z + 1] == 0) DrawBlockFront(buffer, textureEntry, x1, y1, z1, 0);
}
}
}
}
}
private void RenderBlocks(GameClient gameClient)
{
GL.UseProgram(_cubeShader.Value.Id);
GL.UniformMatrix4(0, false, ref _projectionMatrix);
GL.UniformMatrix4(4, false, ref _modelViewMatrix);
var cameraChunkPos = (ChunkPos)gameClient.PositionData.Placement.Pos;
var offset = (gameClient.PositionData.Placement.Pos - EntityPos.Origin) + new EntityOffset(0, gameClient.PhysicsValues.PlayerEyeHeight, 0);
int chunkUpdates = 0;
ChunkPos.IterateOutwards(
cameraChunkPos,
ChunkViewRadiusXZ,
ChunkViewRadiusY,
chunkPos =>
{
ChunkBufferEntry entry;
_chunkBuffers.TryGetValue(chunkPos, out entry);
/* Don't let nearby entries expire. */
if (entry != null) entry.LastAccess = _currentFrameTime;
if (!IsInViewingFrustum(gameClient, offset, chunkPos)) return;
var chunk = gameClient.World.PeekChunk(chunkPos);
if (chunk != null && chunk.HasData)
{
if (entry == null)
{
entry = new ChunkBufferEntry { LastAccess = _currentFrameTime };
_chunkBuffers[chunkPos] = entry;
}
if (entry.ContentHash != chunk.ContentHash)
{
if (chunkUpdates < 5 && entry.TriangleTask != null && entry.TriangleTask.IsCompleted)
{
var triangles = entry.TriangleTask.Result;
if (entry.TriangleTaskContentHash == chunk.ContentHash)
{
++chunkUpdates;
if (entry.VertexArray == null) entry.VertexArray = new VertexArray(_cubeVertexSpecification);
entry.VertexArray.SetData(triangles, BufferUsageHint.StaticDraw);
entry.ContentHash = chunk.ContentHash;
}
triangles.Dispose();
entry.TriangleTask = null;
entry.TriangleTaskContentHash = 0;
}
if (entry.ContentHash != chunk.ContentHash && entry.TriangleTask == null)
{
var triangleBuffer = new TriangleBuffer(_cubeVertexSpecification);
var localChunk = chunk;
entry.TriangleTask = Task.Run(() => { RenderChunk(triangleBuffer, localChunk); return triangleBuffer; });
entry.TriangleTaskContentHash = chunk.ContentHash;
}
}
entry.VertexArray?.Draw();
}
});
GL.UseProgram(0);
RemoveExpiredChunks();
}
