public void FromGenMesh(GraphicsDevice _gd, GenMesh _mesh, bool _bComputeBounds)
{
//Clear GPU Buffers
ClearGPUVBOBuffers();
//Init
m_npartsCount = 0;
for (int i = 0; i < _mesh.m_genMeshParts.Count; i++)
{
GenMeshPart part = _mesh.m_genMeshParts[i];
MeshGPUPart partGPU = m_meshParts[i];
//Vertices
partGPU.m_gpuVertexBuffer = new VertexBuffer(_gd, typeof(VertexPosColorNorm), part.m_vertices.Count, BufferUsage.WriteOnly);
partGPU.m_gpuVertexBuffer.SetData(part.m_vertices.ToArray(), 0, part.m_vertices.Count);
//Indices
partGPU.m_gpuIndexBuffer = new IndexBuffer(_gd, typeof(ushort), part.m_indices.Count, BufferUsage.WriteOnly);
partGPU.m_gpuIndexBuffer.SetData(0, part.m_indices.ToArray(), 0, part.m_indices.Count);
m_npartsCount++;
}
}
public void Draw(Matrix view, Matrix proj)
{
if (m_genMesh.m_meshGPU == null)
{
return;
}
MeshGPU meshGPU = m_genMesh.m_meshGPU;
if (meshGPU.m_npartsCount < 0)
{
return;
}
var effect = meshGPU.SingleEffect;
effect.CurrentTechnique = effect.Techniques["Technique1"];
effect.Parameters["xWorld"].SetValue(m_worldMtx);
effect.Parameters["xView"].SetValue(view);
effect.Parameters["xProjection"].SetValue(proj);
effect.Parameters["xDirectionalLightDir"].SetValue(LightDir);
if (m_tex2DBorder != null)
{
effect.Parameters["xTexSlot0"].SetValue(m_tex2DBorder);
}
if (ShowGridOnVoxel == true)
{
effect.Parameters["xGridPower"].SetValue(1.0f);
}
else
{
effect.Parameters["xGridPower"].SetValue(0.0f);
}
// Create a vertex buffer, and copy our vertex data into it.
GraphicsDevice device = effect.GraphicsDevice;
device.RasterizerState = RasterizerState.CullCounterClockwise;// CullClockwise;
device.DepthStencilState = DepthStencilState.Default;
device.BlendState = BlendState.Opaque;
effect.CurrentTechnique.Passes[0].Apply(); //One pass
//Draw Grouped by Effect Slot
for (int i = 0; i < meshGPU.m_npartsCount; i++)
{
MeshGPUPart part = meshGPU.m_meshParts[i];
device.SetVertexBuffer(part.m_gpuVertexBuffer);
device.Indices = part.m_gpuIndexBuffer;
device.DrawIndexedPrimitives(PrimitiveType.TriangleList, 0, 0, part.m_gpuIndexBuffer.IndexCount / 3);
}
}
public MeshGPU()
{
m_meshParts = new MeshGPUPart[8]; //Default max ...
for (int i = 0; i < m_meshParts.Length; i++)
{
m_meshParts[i] = new MeshGPUPart();
}
m_npartsCount = 0;
}
public void ClearGPUVBOBuffers()
{
for (int i = 0; i < m_meshParts.Length; i++)
{
MeshGPUPart partGPU = m_meshParts[i];
if (partGPU.m_gpuVertexBuffer != null)
{
partGPU.m_gpuVertexBuffer.Dispose();
partGPU.m_gpuVertexBuffer = null;
}
if (partGPU.m_gpuIndexBuffer != null)
{
partGPU.m_gpuIndexBuffer.Dispose();
partGPU.m_gpuIndexBuffer = null;
}
}
}
