// Methods
public void Draw(Mesh.Slots slot)
{
if (Slot != slot)
{
return;
}
// Get the material
var mat = (string.IsNullOrEmpty(MaterialName) ||
!Data.Materials.ContainsKey(MaterialName)) ?
Data.DefaultMaterial : Data.Materials[MaterialName];
// Get the texture
string texName = (mat.Texset.Textures.Count > 0) ?
mat.Texset.Textures[0].TextureName : null;
int tex = (string.IsNullOrEmpty(texName) ||
!Data.Textures.ContainsKey(texName)) ?
Data.DefaultTexture : Data.Textures[texName];
// Bind the texture and the mesh's VAO
GL.BindTexture(TextureTarget.Texture2D, tex);
GL.BindVertexArray(VAO);
// Draw the mesh
GL.DrawElements(PrimitiveType.Triangles, TriangleCount,
DrawElementsType.UnsignedInt, IntPtr.Zero);
// Un-bind the VAO
GL.BindVertexArray(0);
}
public void Draw(int shaderID, Mesh.Slots slot)
{
if (meshes == null)
{
throw new Exception("Cannot draw model - model not initialized!");
}
int modelLoc = GL.GetUniformLocation(shaderID, "model");
int highlightLoc = GL.GetUniformLocation(shaderID, "highlight");
GL.Uniform4(highlightLoc, new OpenTK.Vector4(1, 1, 1, 1));
foreach (var transform in Instances)
{
// Update Transforms
var modelTransform = transform.Matrix;
// Update shader transform matrices
GL.UniformMatrix4(modelLoc, false, ref modelTransform);
// Update Highlight Color
bool selected = Viewport.SelectedInstances.Contains(transform);
if (selected)
{
GL.Uniform4(highlightLoc, new OpenTK.Vector4(1, 0, 0, 1));
}
// Draw the meshes
for (int i = 0; i < meshes.Length; ++i)
{
meshes[i].Draw(slot);
}
// Set Highlight Color back to default
if (selected)
{
GL.Uniform4(highlightLoc, new OpenTK.Vector4(1, 1, 1, 1));
}
}
}