/// <summary>
/// Dispose VBOs if we have them in graphics card memory
/// </summary>
public void Dispose()
{
if (VertexVBO != -1) Compat.DeleteBuffer(VertexVBO);
if (IndexVBO != -1) Compat.DeleteBuffer(IndexVBO);
VertexVBO = -1;
IndexVBO = -1;
}
public void ResetTerrain(bool removeImage)
{
if (terrainImage != null)
{
terrainImage.Dispose();
terrainImage = null;
}
if (terrainVBO != -1)
{
Compat.DeleteBuffer(terrainVBO);
terrainVBO = -1;
}
if (terrainIndexVBO != -1)
{
Compat.DeleteBuffer(terrainIndexVBO);
terrainIndexVBO = -1;
}
if (removeImage)
{
if (terrainTexture != -1)
{
GL.DeleteTexture(terrainTexture);
terrainTexture = -1;
}
}
fetchingTerrainTexture = false;
Modified = true;
}
/// <summary>
/// Checks if VBOs are created, if they are, bind them, if not create new
/// </summary>
/// <param name="face">Which face's mesh is uploaded in this VBO</param>
/// <returns>True, if face data was succesfully uploaded to the graphics card memory</returns>
public bool CheckVBO(Face face)
{
if (VertexVBO == -1)
{
Vertex[] vArray = face.Vertices.ToArray();
Compat.GenBuffers(out VertexVBO);
Compat.BindBuffer(BufferTarget.ArrayBuffer, VertexVBO);
Compat.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(vArray.Length * VertexSize), vArray, BufferUsageHint.StaticDraw);
if (Compat.BufferSize(BufferTarget.ArrayBuffer) != vArray.Length * VertexSize)
{
VBOFailed = true;
Compat.BindBuffer(BufferTarget.ArrayBuffer, 0);
Compat.DeleteBuffer(VertexVBO);
VertexVBO = -1;
return false;
}
}
if (IndexVBO == -1)
{
ushort[] iArray = face.Indices.ToArray();
Compat.GenBuffers(out IndexVBO);
Compat.BindBuffer(BufferTarget.ElementArrayBuffer, IndexVBO);
Compat.BufferData(BufferTarget.ElementArrayBuffer, (IntPtr)(iArray.Length * sizeof(ushort)), iArray, BufferUsageHint.StaticDraw);
if (Compat.BufferSize(BufferTarget.ElementArrayBuffer) != iArray.Length * sizeof(ushort))
{
VBOFailed = true;
Compat.BindBuffer(BufferTarget.ElementArrayBuffer, 0);
Compat.DeleteBuffer(IndexVBO);
IndexVBO = -1;
return false;
}
}
return true;
}
