public TextGenerator(string path, string fontName, uint fontSize = 12)
{
if (_textPs == null)
{
LoadProgramShader();
}
FontName = fontName;
FontSize = fontSize;
SharpFont.Library fontLib = new SharpFont.Library();
SharpFont.Face fontFace = new SharpFont.Face(fontLib, path);
fontFace.SetPixelSizes(0, FontSize);
GL.PixelStore(PixelStoreParameter.UnpackAlignment, 1);
for (char c = (char)0x20; c <= (char)0x7E; c++)
{
fontFace.LoadChar(c, LoadFlags.Render, LoadTarget.Normal);
Texture texture = Texture.CreateTexture(
fontFace.Glyph.Bitmap.Width,
fontFace.Glyph.Bitmap.Rows,
PixelInternalFormat.R8,
PixelFormat.Red,
fontFace.Glyph.Bitmap.Buffer);
Character character = new Character(
texture.ID,
new Vector2(fontFace.Glyph.Bitmap.Width, fontFace.Glyph.Bitmap.Rows),
new Vector2(fontFace.Glyph.BitmapLeft, fontFace.Glyph.BitmapTop),
(int)fontFace.Glyph.Advance.X);
_characters.Add(c, character);
}
fontFace.Dispose();
fontLib.Dispose();
vao = VAO.Create();
vao.LinkPS(_textPs);
vbo = VBO.Create <float>(vertices.Length, 4, "vertex");
indices = new IndicesCollection();
indices.Add(4, vertices.Length);
vao.AddVBuff(vbo);
vao.AddIndicesCollection(indices);
}
public void Create(Vector3[] positionVboData,Vector3[] normalVboData, int[] indicesVboData)
{
length = indicesVboData.Length;
VBO pos, nor;
pos = new VBO();
pos.Create<Vector3>(BufferTarget.ArrayBuffer, positionVboData);
nor = new VBO();
nor.Create<Vector3>(BufferTarget.ArrayBuffer, normalVboData);
ind = new VBO();
ind.Create<int>(BufferTarget.ElementArrayBuffer, indicesVboData);
vao = new VAO();
vao.Create();
vao.SetVertexAttribPointer(0, 3, pos);
vao.SetVertexAttribPointer(1, 3, nor);
VAO.Unbind();
}
