public void Draw(ref Rasterizer rast, ref VertexProcessor proc)
{
for (int i = 0; i < Indices.Count; i += 3) //! make Indices.Count a variable
{
rast.Triangle(
proc.Tr(Positions[Indices[i]]),
proc.Tr(Positions[Indices[i + 1]]),
proc.Tr(Positions[Indices[i + 2]]),
(Float3)Color.Coral, (Float3)Color.Bisque, (Float3)Color.DarkCyan);
}
}
public void DrawUV(ref Rasterizer rast, ref VertexProcessor proc)
{
for (int i = 0; i < Indices.Count; i += 3) //! make Indices.Count a variable
{
rast.Triangle(
proc.Tr(Positions[Indices[i]]),
proc.Tr(Positions[Indices[i + 1]]),
proc.Tr(Positions[Indices[i + 2]]),
Light.Saturate(proc.Tr_obj2view3((TextureCoordinates[Indices[i]])) * 255f),
Light.Saturate(proc.Tr_obj2view3((TextureCoordinates[Indices[i + 1]])) * 255f),
Light.Saturate(proc.Tr_obj2view3((TextureCoordinates[Indices[i + 2]])) * 255f));
}
}
public void DrawNormals(ref Rasterizer rast, ref VertexProcessor proc)
{
for (int i = 0; i < Indices.Count; i += 3) //! make Indices.Count a variable
{
rast.Triangle(
proc.Tr(Positions[Indices[i]]),
proc.Tr(Positions[Indices[i + 1]]),
proc.Tr(Positions[Indices[i + 2]]),
Light.Saturate(proc.Tr_obj2view3((Normals[Indices[i]] + 1f) / 2f).Normalize * 255f),
Light.Saturate(proc.Tr_obj2view3((Normals[Indices[i + 1]] + 1f) / 2f).Normalize * 255f),
Light.Saturate(proc.Tr_obj2view3((Normals[Indices[i + 2]] + 1f) / 2f).Normalize * 255f));
}
}
public void DrawV(ref Rasterizer rast, ref VertexProcessor proc, ref Light light)
{
for (int i = 0; i < Indices.Count; i += 3) //! make Indices.Count a variable
{
rast.Triangle(
proc.Tr(Positions[Indices[i]]),
proc.Tr(Positions[Indices[i + 1]]),
proc.Tr(Positions[Indices[i + 2]]),
light.Calculate(Positions[Indices[i]], Normals[Indices[i]], ref proc),
light.Calculate(Positions[Indices[i + 1]], Normals[Indices[i + 1]], ref proc),
light.Calculate(Positions[Indices[i + 2]], Normals[Indices[i + 2]], ref proc));
}
}
public void DrawUV(ref Rasterizer rast, ref VertexProcessor proc, ref Light light, ref Buffer tex)
{
int count = Indices.Count;
for (int i = 0; i < count; i += 3) //! make Indices.Count a variable
{
rast.Triangle(
proc.Tr(Positions[Indices[i]]),
proc.Tr(Positions[Indices[i + 1]]),
proc.Tr(Positions[Indices[i + 2]]),
Normals[Indices[i]],
Normals[Indices[i + 1]],
Normals[Indices[i + 2]],
TextureCoordinates[Indices[i]],
TextureCoordinates[Indices[i + 1]],
TextureCoordinates[Indices[i + 2]],
ref light,
ref proc,
ref tex);
}
}
public void Triangle(Float3 v1, Float3 v2, Float3 v3, Float3 n1, Float3 n2, Float3 n3, ref Light light, ref VertexProcessor proc)
{
float x1 = (v1.X + 1) * buff.width * .5f;
float y1 = (v1.Y + 1) * buff.height * .5f;
float x2 = (v2.X + 1) * buff.width * .5f;
float y2 = (v2.Y + 1) * buff.height * .5f;
float x3 = (v3.X + 1) * buff.width * .5f;
float y3 = (v3.Y + 1) * buff.height * .5f;
int minx = Min(x1, x2, x3);
int miny = Min(y1, y2, y3);
int maxx = Max(x1, x2, x3);
int maxy = Max(y1, y2, y3);
minx = Math.Max(minx, 0);
maxx = Math.Min(maxx, buff.width - 1);
miny = Math.Max(miny, 0);
maxy = Math.Min(maxy, buff.height - 1);
float dy12 = y1 - y2;
float dy23 = y2 - y3;
float dy31 = y3 - y1;
float dx12 = x1 - x2;
float dx23 = x2 - x3;
float dx31 = x3 - x1;
bool tl1 = false;
bool tl2 = false;
bool tl3 = false;
if (dy12 < 0 || (dy12 == 0 && dx12 > 0))
{
tl1 = true;
}
if (dy23 < 0 || (dy23 == 0 && dx23 > 0))
{
tl2 = true;
}
if (dy31 < 0 || (dy31 == 0 && dx31 > 0))
{
tl3 = true;
}
for (int x = minx; x <= maxx; x++)
{
for (int y = miny; y <= maxy; y++)
{
float hs1 = dx12 * (y - y1) - dy12 * (x - x1);
float hs2 = dx23 * (y - y2) - dy23 * (x - x2);
float hs3 = dx31 * (y - y3) - dy31 * (x - x3);
if (((hs1 > 0 && !tl1) || (hs1 >= 0 && tl1)) &&
((hs2 > 0 && !tl2) || (hs2 >= 0 && tl2)) &&
((hs3 > 0 && !tl3) || (hs3 >= 0 && tl3)))
{
float l1 = (((y2 - y3) * (x - x3)) + ((x3 - x2) * (y - y3))) /
(((y2 - y3) * (x1 - x3)) + ((x3 - x2) * (y1 - y3)));
float l2 = (((y3 - y1) * (x - x3)) + ((x1 - x3) * (y - y3))) /
(((y3 - y1) * (x2 - x3)) + ((x1 - x3) * (y2 - y3)));
float l3 = 1 - l1 - l2;
float depth = l1 * v1.Z + l2 * v2.Z + l3 * v3.Z;
if (depth < depthBuff.GetDepth(x, y))
{
Float3 position = v1 * l1 + v2 * l2 + v3 * l3;
Float3 normal = n1 * l1 + n2 * l2 + n3 * l3;
Float3 col = light.Calculate(in position, in normal, ref proc);
buff.SetPixel(x, y, (Color)col);
depthBuff.SetDepth(x, y, depth);
}
}
}
}
}
