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我正在尝试为我进行多通道纹理工作，但现在我可以让简单的纹理工作，任何人都可以用下面的代码来解决问题。此示例仅将多边形显示为白色，而不是纹理。

def loadTexture(name):

    img = PIL.Image.open(name) # .jpg, .bmp, etc. also work
    img_data = numpy.array(list(img.getdata()), numpy.int8)

    id = glGenTextures(1)
    glPixelStorei(GL_UNPACK_ALIGNMENT,1)
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP)
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP)
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img.size[0], img.size[1], 0, GL_RGB, GL_UNSIGNED_BYTE, img_data)
    return id

……

tex = loadTexture(/foobar.png)

……

glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
glTranslate(0.0, 0.0, -600)
glScale(50.0, 50.0, 50.0)
glRotate(90, 0.0, 0.0, 0.0)

glEnable(GL_TEXTURE_2D)
glBindTexture(GL_TEXTURE_2D, tex)
glBegin(GL_TRIANGLES)

....

glEnd()
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1 回答 1

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设置纹理参数或上传数据时必须调用 glBindTexture(GL_TEXTURE_2D, id)：

id = glGenTextures(1)
glPixelStorei(GL_UNPACK_ALIGNMENT,1)
glBindTexture(GL_TEXTURE_2D, id)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img.size[0], img.size[1], 0, GL_RGB, GL_UNSIGNED_BYTE, img_data)
于 2012-02-24T00:05:31.357 回答