关于OPENGL ES显示图片变形问题

pptor 2010-10-25 09:53:19

各位，我使用OPENGL ES做一个长方体（带纹理）旋转的Demo。
纹理沿对象线发生错位变形。代码如下

   glBindTexture(GL_TEXTURE_2D,texture[i]); 

		  w=g_textture_wh[i].Old_w/g_textture_wh[i].new_w;

		  h=g_textture_wh[i].Old_h/g_textture_wh[i].new_h;



		  fVertex[0] = fVertex_array[i][0];

		  fVertex[1] = fVertex_array[i][1];

		  fVertex[2] = fVertex_array[i][2];



		  fVertex[3] = fVertex_array[i][3];

		  fVertex[4] = fVertex_array[i][4];

		  fVertex[5] = fVertex_array[i][5];



		  fVertex[6] = fVertex_array[i][6];

		  fVertex[7] = fVertex_array[i][7];

		  fVertex[8] = fVertex_array[i][8];



		  fVertex[9] = fVertex_array[i][9];

		  fVertex[10] =fVertex_array[i][10];

		  fVertex[11] =fVertex_array[i][11];

		  //

		  fTexCoord[0] = 0.0f;

		  fTexCoord[1] = 0.0f;



		  fTexCoord[2] = 0.0f;

		  fTexCoord[3] = 1.0f*h;



		  fTexCoord[4] = 1.0f*w;

		  fTexCoord[5] = 1.0f*h;



		  fTexCoord[6] = 1.0f*w;

		  fTexCoord[7] = 0.0f;



		

		  glVertexPointer(3, GL_FLOAT, 0, fVertex);

		  glTexCoordPointer(2, GL_FLOAT, 0, fTexCoord);

		  glDrawArrays(GL_TRIANGLE_FAN, 0, 4);