public void Render(ThreeDSModel4LegacyOpenGL model, PolygonModes mode)
{
if (TriangleIndexes == null)
{
return;
}
GL.PolygonMode(PolygonModeFaces.FrontAndBack, mode);
// Draw every triangle in the entity
foreach (var item in this.usingMaterialIndexesList)
{
var material = model.MaterialDict[item.Item1];
GL.Materialfv(GL.GL_FRONT_AND_BACK, GL.GL_AMBIENT, material.Ambient);
GL.Materialfv(GL.GL_FRONT_AND_BACK, GL.GL_DIFFUSE, material.Diffuse);
GL.Materialfv(GL.GL_FRONT_AND_BACK, GL.GL_SPECULAR, material.Specular);
GL.Materialf(GL.GL_FRONT_AND_BACK, GL.GL_SHININESS, material.Shininess);
Texture2D[] textures = new Texture2D[] { material.GetTexture(), material.GetBumpTexture(), material.GetReflectionTexture(), };
bool drawn = false;
foreach (var texture in textures)
{
if (!(drawn && texture == null)) // 如果没有贴图，就只画一次。
{
if (texture != null)
{
GL.Enable(GL.GL_TEXTURE_2D);
texture.Bind();
}
DrawTriangles(item, texture);
if (texture != null)
{
texture.Unbind();
GL.Disable(GL.GL_TEXTURE_2D);
}
}
drawn = true;
}
}
//Console.WriteLine ( GL.GetError () );
}
private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
if (this.open3DSDlg.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
try
{
var parser = new ThreeDSParser();
var filename = this.open3DSDlg.FileName;
var tree = parser.Parse(filename);
ThreeDSModel4LegacyOpenGL model = null;
tree.Dump(out model);
if (model.Entities == null)
{
MessageBox.Show("No entity found!");
return;
}
var builder = new StringBuilder();
int i = 1;
bool emptyVerticesFound = false, emptyIndicesFound = false, emptyTexCoordsFound = false;
foreach (var entity in model.Entities)
{
builder.Append("entity "); builder.Append(i++); builder.Append(":");
if (entity.Vertexes == null)
{
if (!emptyVerticesFound)
{ MessageBox.Show("No vertices in some entity!"); emptyVerticesFound = true; }
}
else
{ builder.Append(" "); builder.Append(entity.Vertexes.Length); builder.Append(" vertices"); }
if (entity.TriangleIndexes == null)
{
if (!emptyIndicesFound)
{
MessageBox.Show("No faces in some entity.");
emptyIndicesFound = true;
}
}
else
{ builder.Append(" "); builder.Append(entity.TriangleIndexes.Length); builder.Append(" indices"); }
if (entity.TexCoords == null)
{
if (!emptyTexCoordsFound)
{
MessageBox.Show("No UV in some entity.");
emptyTexCoordsFound = true;
}
}
else
{ builder.Append(" "); builder.Append(entity.TexCoords.Length); builder.Append(" UVs"); }
builder.AppendLine();
}
if (i == 1)
{ builder.Append("no entity found."); }
this.model = model;
MessageBox.Show(builder.ToString(), "Info");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error");
}
}
}
public void Render(ThreeDSModel4LegacyOpenGL model, PolygonModes mode)
{
if (TriangleIndexes == null) return;
GL.PolygonMode(PolygonModeFaces.FrontAndBack, mode);
// Draw every triangle in the entity
foreach (var item in this.usingMaterialIndexesList)
{
var material = model.MaterialDict[item.Item1];
GL.Materialfv(GL.GL_FRONT_AND_BACK, GL.GL_AMBIENT, material.Ambient);
GL.Materialfv(GL.GL_FRONT_AND_BACK, GL.GL_DIFFUSE, material.Diffuse);
GL.Materialfv(GL.GL_FRONT_AND_BACK, GL.GL_SPECULAR, material.Specular);
GL.Materialf(GL.GL_FRONT_AND_BACK, GL.GL_SHININESS, material.Shininess);
Texture2D[] textures = new Texture2D[] { material.GetTexture(), material.GetBumpTexture(), material.GetReflectionTexture(), };
bool drawn = false;
foreach (var texture in textures)
{
if (!(drawn && texture == null)) // 如果没有贴图，就只画一次。
{
if (texture != null)
{
GL.Enable(GL.GL_TEXTURE_2D);
texture.Bind();
}
DrawTriangles(item, texture);
if (texture != null)
{
texture.Unbind();
GL.Disable(GL.GL_TEXTURE_2D);
}
}
drawn = true;
}
}
if (this.usingMaterialIndexesList.Count == 0)
{
GL.Begin(GL.GL_TRIANGLES);
foreach (var tri in this.TriangleIndexes)
{
// Vertex 1
if (normalized)
{
var normal = this.normals[tri.vertex1];
GL.Normal3d(normal.X, normal.Y, normal.Z);
}
{
var vertex = this.Vertexes[tri.vertex1];
GL.Vertex3d(vertex.X, vertex.Y, vertex.Z);
}
// Vertex 2
if (normalized)
{
var normal = this.normals[tri.vertex2];
GL.Normal3d(normal.X, normal.Y, normal.Z);
}
{
var vertex = this.Vertexes[tri.vertex2];
GL.Vertex3d(vertex.X, vertex.Y, vertex.Z);
}
// Vertex 3
if (normalized)
{
var normal = this.normals[tri.vertex3];
GL.Normal3d(normal.X, normal.Y, normal.Z);
}
{
var vertex = this.Vertexes[tri.vertex3];
GL.Vertex3d(vertex.X, vertex.Y, vertex.Z);
}
}
GL.End();
}
//Console.WriteLine ( GL.GetError () );
}
