首先，原谅我的英语，我是法国人...... 我写了一个不起作用的代码。 我想绘制一个像Minecraft一样的多个块，但是在Voxel中。 在我的地图的一侧，结果很好：
但另一方面，我得到了这个：
But in this side of my map, it's no good :(
有些面孔出现在其他面孔上...... 谁有想法？我的常规？
我的函数Remake（）未被使用，它用于删除面...
namespace LandOfCube.Models
{
class Block
{
VertexBuffer instanceBuffer;
public enum Form
{
all,
noUp,
noDown,
noRight,
noLeft,
noFront,
noBack
}
public Form cubeForm = Form.all;
GraphicsDevice Graphics;
Effect shader;
private VertexBuffer vb;
Color CubeColor;
public Vector3 pos;
VertexPositionColorNormal[] vertices;
VertexPositionColorNormal[] verticesNoUp;
VertexPositionColorNormal[] verticesNoDown;
VertexPositionColorNormal[] verticesNoFront;
VertexPositionColorNormal[] verticesNoBack;
VertexPositionColorNormal[] verticesNoRight;
VertexPositionColorNormal[] verticesNoLeft;
private VertexPositionColorNormal[] Front = new VertexPositionColorNormal[5];
private VertexPositionColorNormal[] Back = new VertexPositionColorNormal[5];
private VertexPositionColorNormal[] Right = new VertexPositionColorNormal[5];
private VertexPositionColorNormal[] Up = new VertexPositionColorNormal[5];
private VertexPositionColorNormal[] Left = new VertexPositionColorNormal[5];
private VertexPositionColorNormal[] Down = new VertexPositionColorNormal[5];
public Vector3 normalFront = Vector3.Forward;
public Vector3 normalBack = Vector3.Backward;
public Vector3 normalTop = Vector3.Up;
public Vector3 normalBottom = Vector3.Down;
public Vector3 normalLeft = Vector3.Left;
public Vector3 normalRight = Vector3.Right;
public Block(GraphicsDevice graph, Color color, Vector3 position, ContentManager content)
{
Graphics = graph;
shader = content.Load<Effect>("effects");
CubeColor = color;
pos = position;
Init();
SetVertices();
}
bool test = false;
public void Draw(Camera camera)
{
Graphics.SetVertexBuffer(vb);
shader.CurrentTechnique = shader.Techniques["Colored"];
shader.Parameters["xView"].SetValue(camera.View);
shader.Parameters["xProjection"].SetValue(camera.Projection);
shader.Parameters["xWorld"].SetValue(Matrix.Identity);
Vector3 lightDirection = new Vector3(1.0f, -1.0f, -1.0f);
lightDirection.Normalize();
shader.Parameters["xLightDirection"].SetValue(lightDirection);
shader.Parameters["xAmbient"].SetValue(0.1f);
shader.Parameters["xEnableLighting"].SetValue(true);
foreach (EffectPass pass in shader.CurrentTechnique.Passes)
{
pass.Apply();
this.Graphics.DrawPrimitives(PrimitiveType.TriangleList, 0, vertices.Length / 3);
}
}
#region Methode abstraites
private void Init()
{
InitFront();
InitBack();
InitDown();
InitUp();
InitLeft();
InitRight();
}
public void Remake()
{
switch (cubeForm)
{
case Form.noBack:
vertices = verticesNoBack;
break;
case Form.noFront:
vertices = verticesNoFront;
break;
case Form.noUp:
vertices = verticesNoUp;
break;
case Form.noDown:
vertices = verticesNoDown;
break;
case Form.noRight:
vertices = verticesNoRight;
break;
case Form.noLeft:
vertices = verticesNoLeft;
break;
}
vb = new VertexBuffer(Graphics, typeof(VertexPositionColorNormal), vertices.Length, BufferUsage.None);
vb.SetData(vertices);
verticesNoBack = null;
verticesNoDown = null;
verticesNoFront = null;
verticesNoLeft = null;
verticesNoRight = null;
verticesNoUp = null;
test = true;
}
public void SetVertices()
{
this.vertices = new VertexPositionColorNormal[36];
int y = 0;
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Up[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Down[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Front[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Back[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Right[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Left[x]; y++;
}
setNoBack();
setNoFront();
setNoUp();
setNoDown();
setNoRight();
setNoLeft();
vb = new VertexBuffer(Graphics, typeof(VertexPositionColorNormal), vertices.Length, BufferUsage.None);
vb.SetData(vertices);
Clean();
}
#region InitFaces
public void setNoBack()
{
this.verticesNoBack = new VertexPositionColorNormal[30];
int y = 0;
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Up[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Down[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Front[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Right[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Left[x]; y++;
}
}
public void setNoFront()
{
this.verticesNoFront = new VertexPositionColorNormal[30];
int y = 0;
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Up[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Down[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Back[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Right[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Left[x]; y++;
}
}
public void setNoUp()
{
this.verticesNoUp = new VertexPositionColorNormal[30];
int y = 0;
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Front[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Down[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Back[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Right[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Left[x]; y++;
}
}
public void setNoDown()
{
this.verticesNoFront = new VertexPositionColorNormal[30];
int y = 0;
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Up[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Front[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Back[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Right[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Left[x]; y++;
}
}
public void setNoLeft()
{
this.verticesNoLeft = new VertexPositionColorNormal[30];
int y = 0;
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Up[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Down[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Back[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Right[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Front[x]; y++;
}
}
public void setNoRight()
{
this.verticesNoRight = new VertexPositionColorNormal[30];
int y = 0;
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Up[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Down[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Back[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Front[x]; y++;
}
for (int x = 0; x < 6; x++)
{
this.vertices[y] = Left[x]; y++;
}
}
public void InitFront()
{
this.Front = new VertexPositionColorNormal[6];
Front[0].Position = new Vector3(pos.X, pos.Y + 1, pos.Z);
Front[0].Color = Color.Blue;
Front[0].Normal = normalFront;
Front[1].Position = new Vector3(pos.X, pos.Y, pos.Z + 1);
Front[1].Color = Color.Blue;
Front[1].Normal = normalFront;
Front[2].Position = new Vector3(pos.X, pos.Y, pos.Z);
Front[2].Color = Color.Blue;
Front[2].Normal = normalFront;
Front[3].Position = new Vector3(pos.X, pos.Y + 1, pos.Z);
Front[3].Color = Color.Blue;
Front[3].Normal = normalFront;
Front[4].Position = new Vector3(pos.X, pos.Y + 1, pos.Z + 1);
Front[4].Color = Color.Blue;
Front[4].Normal = normalFront;
Front[5].Position = new Vector3(pos.X, pos.Y, pos.Z + 1);
Front[5].Color = Color.Blue;
Front[5].Normal = normalFront;
}
public void InitBack()
{
this.Back = new VertexPositionColorNormal[6];
Back[0].Position = new Vector3(pos.X + 1, pos.Y, pos.Z + 1);
Back[0].Color = Color.Red;
Back[0].Normal = normalBack;
Back[1].Position = new Vector3(pos.X + 1, pos.Y + 1, pos.Z);
Back[1].Color = Color.Red;
Back[1].Normal = normalBack;
Back[2].Position = new Vector3(pos.X + 1, pos.Y, pos.Z);
Back[2].Color = Color.Red;
Back[2].Normal = normalBack;
Back[3].Position = new Vector3(pos.X + 1, pos.Y + 1, pos.Z + 1);
Back[3].Color = Color.Red;
Back[3].Normal = normalBack;
Back[4].Position = new Vector3(pos.X + 1, pos.Y + 1, pos.Z);
Back[4].Color = Color.Red;
Back[4].Normal = normalBack;
Back[5].Position = new Vector3(pos.X + 1, pos.Y, pos.Z + 1);
Back[5].Color = Color.Red;
Back[5].Normal = normalBack;
}
public void InitUp()
{
this.Up = new VertexPositionColorNormal[6];
Up[0].Position = new Vector3(pos.X + 1, pos.Y + 1, pos.Z);
Up[0].Color = Color.Black;
Up[0].Normal = normalTop;
Up[1].Position = new Vector3(pos.X + 1, pos.Y + 1, pos.Z + 1);
Up[1].Color = Color.Black;
Up[1].Normal = normalTop;
Up[2].Position = new Vector3(pos.X, pos.Y + 1, pos.Z + 1);
Up[2].Color = Color.Black;
Up[2].Normal = normalTop;
Up[3].Position = new Vector3(pos.X + 1, pos.Y + 1, pos.Z);
Up[3].Color = Color.Black;
Up[3].Normal = normalTop;
Up[4].Position = new Vector3(pos.X, pos.Y + 1, pos.Z + 1);
Up[4].Color = Color.Black;
Up[4].Normal = normalTop;
Up[5].Position = new Vector3(pos.X, pos.Y + 1, pos.Z);
Up[5].Color = Color.Black;
Up[5].Normal = normalTop;
}
public void InitDown()
{
this.Down = new VertexPositionColorNormal[6];
Down[0].Position = new Vector3(pos.X + 1, pos.Y, pos.Z);
Down[0].Color = Color.Orange;
Down[0].Normal = normalBottom;
Down[1].Position = new Vector3(pos.X, pos.Y, pos.Z);
Down[1].Color = Color.Orange;
Down[1].Normal = normalBottom;
Down[2].Position = new Vector3(pos.X, pos.Y, pos.Z + 1);
Down[2].Color = Color.Orange;
Down[2].Normal = normalBottom;
Down[3].Position = new Vector3(pos.X + 1, pos.Y, pos.Z);
Down[3].Color = Color.Orange;
Down[3].Normal = normalBottom;
Down[4].Position = new Vector3(pos.X, pos.Y, pos.Z + 1);
Down[4].Color = Color.Orange;
Down[4].Normal = normalBottom;
Down[5].Position = new Vector3(pos.X + 1, pos.Y, pos.Z + 1);
Down[5].Color = Color.Orange;
Down[5].Normal = normalBottom;
}
public void InitRight()
{
this.Right = new VertexPositionColorNormal[6];
Right[0].Position = new Vector3(pos.X + 1, pos.Y, pos.Z + 1);
Right[0].Color = Color.Green;
Right[0].Normal = normalRight;
Right[1].Position = new Vector3(pos.X, pos.Y, pos.Z + 1);
Right[1].Color = Color.Green;
Right[1].Normal = normalRight;
Right[2].Position = new Vector3(pos.X, pos.Y + 1, pos.Z + 1);
Right[2].Color = Color.Green;
Right[3].Normal = normalRight;
Right[3].Position = new Vector3(pos.X + 1, pos.Y, pos.Z + 1);
Right[3].Color = Color.Green;
Right[3].Normal = normalRight;
Right[4].Position = new Vector3(pos.X, pos.Y + 1, pos.Z + 1);
Right[4].Color = Color.Green;
Right[4].Normal = normalRight;
Right[5].Position = new Vector3(pos.X + 1, pos.Y + 1, pos.Z + 1);
Right[5].Color = Color.Green;
Right[5].Normal = normalRight;
}
public void InitLeft()
{
this.Left = new VertexPositionColorNormal[6];
Left[0].Position = new Vector3(pos.X, pos.Y, pos.Z);
Left[0].Color = Color.Aqua;
Left[0].Normal = normalLeft;
Left[1].Position = new Vector3(pos.X + 1, pos.Y + 1, pos.Z);
Left[1].Color = Color.Aqua;
Left[1].Normal = normalLeft;
Left[2].Position = new Vector3(pos.X, pos.Y + 1, pos.Z);
Left[2].Color = Color.Aqua;
Left[2].Normal = normalLeft;
Left[3].Position = new Vector3(pos.X, pos.Y, pos.Z);
Left[3].Color = Color.Aqua;
Left[3].Normal = normalLeft;
Left[4].Position = new Vector3(pos.X + 1, pos.Y, pos.Z);
Left[4].Color = Color.Aqua;
Left[4].Normal = normalLeft;
Left[5].Position = new Vector3(pos.X + 1, pos.Y + 1, pos.Z);
Left[5].Color = Color.Aqua;
Left[5].Normal = normalLeft;
}
#endregion
private void setTriangleNormal(VertexPositionColorNormal v1, VertexPositionColorNormal v2, VertexPositionColorNormal v3)
{
Vector3 side1 = v1.Position - v3.Position;
Vector3 side2 = v1.Position - v2.Position;
Vector3 normal = Vector3.Cross(side1, side2);
v1.Normal += normal;
v2.Normal += normal;
v3.Normal += normal;
v1.Position.Normalize();
v1.Position.Normalize();
v1.Position.Normalize();
}
public void Clean()
{
Front = null;
Back = null;
Right = null;
Left = null;
Up = null;
Down = null;
}
#endregion
}
}
答案 0 :(得分：1)
我的猜测是你将方向盘背面的顶点向错误的方向缠绕，使它们的正常点指向立方体内部而不是外部。 3d代码中一个非常常见的优化是仅绘制具有面向相机的法线的三角形。