// Draws the given model with texturing, shading and a normal map.
void Rasterizer::DrawSolidTexturedNormalMapped(Model3D& model, std::vector<DirectionalLight*> directionalLights, std::vector<AmbientLight*> ambientLights, std::vector<PointLight*> pointLights)
{
std::vector<Polygon3D> _polygonList = model.GetPolygonList();
std::vector<Vertex> _vertexList = model.GetTransformedVertexList();
std::vector<UVCoordinate> _uvCoordList = model.GetUVCoordinateList();
for (unsigned int i = 0; i < _polygonList.size(); i++)
{
Polygon3D poly = _polygonList[i];
if (poly.GetBackfacing() == true)
continue;
Vertex v1 = _vertexList[poly.GetVertexIndex(0)];
Vertex v2 = _vertexList[poly.GetVertexIndex(1)];
Vertex v3 = _vertexList[poly.GetVertexIndex(2)];
// Set the uv coordinates of each vertex temporarily to the coordinates in the
// uv coordinate list.
v1.SetUVCoordinate(_uvCoordList[poly.GetUVIndex(0)]);
v2.SetUVCoordinate(_uvCoordList[poly.GetUVIndex(1)]);
v3.SetUVCoordinate(_uvCoordList[poly.GetUVIndex(2)]);
// Fill the polygon using the models texture.
if (model.GetNormalMapOn() == true)
FillPolygonTexturedNormalMapped(v1, v2, v3, v1.GetColor(), model, directionalLights, ambientLights, pointLights);
else
FillPolygonTextured(v1, v2, v3, v1.GetColor(), model);
}
}
// Draws the given model with gouraud shading.
void Rasterizer::DrawSolidShaded(Model3D& model)
{
std::vector<Polygon3D> _polygonList = model.GetPolygonList();
std::vector<Vertex> _vertexList = model.GetTransformedVertexList();
// Iterate over and render each of the polygons in the list.
for (unsigned int i = 0; i < _polygonList.size(); i++)
{
Polygon3D poly = _polygonList[i];
if (poly.GetBackfacing() == true)
continue;
Vertex v1 = _vertexList[poly.GetVertexIndex(0)];
Vertex v2 = _vertexList[poly.GetVertexIndex(1)];
Vertex v3 = _vertexList[poly.GetVertexIndex(2)];
// Fill the polygon using the polygons colour.
FillPolygonShaded(v1, v2, v3, poly.GetColor());
}
}
// Draws the given model in wireframe mode.
void Rasterizer::DrawWireFrame(Model3D& model)
{
std::vector<Polygon3D> _polygonList = model.GetPolygonList();
std::vector<Vertex> _vertexList = model.GetTransformedVertexList();
// Iterate over and render each of the polygons in the list.
for (unsigned int i = 0; i < _polygonList.size(); i++)
{
Polygon3D poly = _polygonList[i];
if (poly.GetBackfacing() == true)
continue;
Vertex v1 = _vertexList[poly.GetVertexIndex(0)];
Vertex v2 = _vertexList[poly.GetVertexIndex(1)];
Vertex v3 = _vertexList[poly.GetVertexIndex(2)];
// Draw a line between each of the vertexs in the polygon.
DrawLine(v1.GetX(), v1.GetY(), v2.GetX(), v2.GetY());
DrawLine(v2.GetX(), v2.GetY(), v3.GetX(), v3.GetY());
DrawLine(v1.GetX(), v1.GetY(), v3.GetX(), v3.GetY());
_polygonsRendered++;
}
}
