private GLObject MakeObject(Image img)
{
int width = img.Width;
int height = img.Height;
int stride = 4;
Vector2[] vertices = MakePlane(width, height, width /2, height / 2);
float[] data = new float[vertices.Length * stride];
for (int i = 0; i < vertices.Length; i++)
{
int j = i * stride;
Vector2 v = vertices[i];
// X / Z
data[j] = v.X;
data[j+1] = v.Y;
// U / V
data[j + 2] = v.X / width;
data[j + 3] = -v.Y / height;
}
Matrix4 model = Matrix4.Identity;//Matrix4.CreateRotationX(3.41f);
camera = Matrix4.LookAt(new Vector3(700, 700, -400), new Vector3(600, 0, -300), new Vector3(0, 1, 0));
Matrix4 proj = Matrix4.CreatePerspectiveFieldOfView(3.41f / 4, Width / (float)Height, 0.1f, 10000);
// Calc shader
ShaderProgram program = new ShaderProgram();
program.AddShader(new Shader(ShaderType.VertexShader, Helper.LoadShader("Shaders/picture.vert")));
program.AddShader(new Shader(ShaderType.FragmentShader, Helper.LoadShader("Shaders/picture.frag")));
if (!program.Compile())
{
throw new Exception(program.Log);
}
program.UniformMatrix4("model", false, ref model);
program.UniformMatrix4("view", false, ref camera);
program.UniformMatrix4("projection", false, ref proj);
Texture image = new Texture(img, TextureTarget.Texture2D, PixelInternalFormat.Rgb, 0);
image.TexParameter(TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
image.TexParameter(TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
image.TexParameter(TextureParameterName.TextureWrapS, (int)TextureWrapMode.Repeat);
image.TexParameter(TextureParameterName.TextureWrapT, (int)TextureWrapMode.Repeat);
// Make instance
GLObject obj = new GLObject(data, new List<PartitionRule>()
{
new PartitionRule("position", 0, 2),
new PartitionRule("texcoord", 2, 2)
}, program);
obj.AddTexture("image", image);
return obj;
}
