dx9.0纹理

最新推荐文章于 2025-12-05 21:23:51 发布

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最新推荐文章于 2025-12-05 21:23:51 发布 · 292 阅读

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#游戏

注意点

需要安装dx9.0和vs2019设置，可以参考这个https://www.cnblogs.com/Thermo/p/15779136.html
顶点缓存6个面中后面和下面是以左下角坐标逆时针写的，其他面都是顺时针的，这样导致画每个面的三角形按照顶点的渲染方式不一样，为什么后面和下面这样去渲染呢？如果6个面按照同样的方式就会有显示错误。

代码

Vertex.h

struct Vertex
{
   
   
	Vertex() {
   
   }
	Vertex(float x, float y, float z, float nx, float ny, float nz, float u, float v)
	{
   
   
		_x = x; _y = y; _z = z;
		_nx = nx; _ny = ny; _nz = nz;
		_u = u; _v = v;
	}
	float _x, _y, _z;
	float _nx, _ny, _nz;
	float _u, _v;
};

#define FVF_VERTEX (D3DFVF_XYZ | D3DFVF_NORMAL | D3DFVF_TEX1)

Cube.h

#include <d3dx9.h>

class Cube
{
   
   
public:
	Cube(IDirect3DDevice9* device);
	~Cube();

	bool draw(D3DXMATRIX* world, D3DMATERIAL9* mtrl, IDirect3DTexture9* tex);
private:
	IDirect3DDevice9* _device;
	IDirect3DVertexBuffer9* _vb;
	IDirect3DIndexBuffer9* _ib;
};

Cube.cpp

#include "Cube.h"
#include "d3dUtility.h"
#include "Vertex.h"

Cube::Cube(IDirect3DDevice9* device)
{
   
   
	_device = device;

	//创建顶点缓存
	device->CreateVertexBuffer(24 * sizeof(Vertex), D3DUSAGE_WRITEONLY, FVF_VERTEX, D3DPOOL_MANAGED, &_vb, nullptr);
	Vertex* v;
	_vb->Lock(0, 0, (void**)&v, 0);

	//前面
	v[0] = Vertex(-1.0f, -1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f);
	v[1] = Vertex(-1.0f, 1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 1.0f);
	v[2] = Vertex(1.0f, 1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 1.0f);
	v[3] = Vertex(1.0f, -1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 0.0f);

	//后面
	v[4] = Vertex(-1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f);
	v[5] = Vertex(1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f);
	v[6] = Vertex(1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f);
	v[7] = Vertex(-1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.0f);

	//左面
	v[8] = Vertex(-1.0f, -1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 0.0f);
	v[9] = Vertex(-1.0f, 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f);
	v[10] = Vertex(-1.0f, 1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f);
	v[11] = Vertex(-1.0f, -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f);

	//右面
	v[12] = Vertex(1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f);
	v[13] = Vertex(1.0f, 1.0f, -1.0f, 1.0f,