private void AddedNewGroup(int groupno, GLBuffer matrixbuffer) // callback due to new group added, we need a texture and a RI
{
var texture = new GLTexture2DArray();
items.Add(texture);
texture.CreateOrUpdateTexture(bitmapsize.Width, bitmapsize.Height, matrixbuffers.Matricesperbuffer, textureformat, texmipmaplevels);
grouptextureslist.Add(texture); // need to keep these for later addition
var rd = new RenderData(texture);
var renderableItem = GLRenderableItem.CreateMatrix4(items, OpenTK.Graphics.OpenGL4.PrimitiveType.Quads, renderstate, matrixbuffer, 0, 4, rd, ic: 0); //drawcount=4 (4 vertexes made up by shader), ic will be set in Add.
renderlist.Add(shader, name + ":" + groupno, renderableItem);
grouprenderlist.Add(renderableItem);
}
public DynamicGridCoordVertexShader(Font f = null)
{
texcoords = new GLTexture2DArray();
texcoords.CreateOrUpdateTexture(200, 25, 9, OpenTK.Graphics.OpenGL4.SizedInternalFormat.Rgba8); // size and number, and the texcoord will own them, so it will dispose of them
gridfnt = f ?? new Font("MS Sans Serif", 16);
for (int i = 0; i < 9; i++)
{
Bitmap bmp = new Bitmap(texcoords.Width, texcoords.Height); // a bitmap for each number
texcoords.LoadBitmap(bmp, i, true, 1);
}
CompileLink(OpenTK.Graphics.OpenGL4.ShaderType.VertexShader, vcode());
}