Question

如何在平面上包裹两个纹理？我想我做到了，但是纹理填满了整个物体而不仅仅是我想要它的条子。

感谢任何帮助〜Aedon

InputStream is = context.getResources().openRawResource(R.drawable.woodtexture1);
InputStream is2 = context.getResources().openRawResource(R.drawable.bandtest);
Bitmap bitmap = null;
Bitmap b2 = null;
try {
        //BitmapFactory is an Android graphics utility for images
        bitmap = BitmapFactory.decodeStream(is);
        b2 = BitmapFactory.decodeStream(is2);
} finally {
//Always clear and close
try {
    is.close();
    is2.close();
    is = null;
    is = null;
} catch (IOException e) {}
}

    //Generate one texture pointer...
    gl.glGenTextures(1, textures, 0);
    //...and bind it to our array
    gl.glBindTexture(GL10.GL_TEXTURE_2D, textures[0]);

    //Create Nearest Filtered Texture
    gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_NEAREST);
    gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);

    //Different possible texture parameters, e.g. GL10.GL_CLAMP_TO_EDGE
    gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_S, GL10.GL_REPEAT);
    gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_T, GL10.GL_REPEAT);

    //Use the Android GLUtils to specify a two-dimensional texture image from our bitmap
    GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bitmap, 0);

    //Generate one texture pointer...
    gl.glGenTextures(1, textures, 0);
    //...and bind it to our array
    gl.glBindTexture(GL10.GL_TEXTURE_2D, textures[0]);

    //Create Nearest Filtered Texture
    gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_NEAREST);
    gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);

    //Different possible texture parameters, e.g. GL10.GL_CLAMP_TO_EDGE
    gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_S, GL10.GL_ONE);
    gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_T, GL10.GL_ONE);
    GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bitmap, 0);
    GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, b2, 0);

Answer 1

我不确定这是否是您想要的 - 但如果您希望纹理仅覆盖对象的一部分，请使用glTexCoordPointer为对象设置纹理坐标。

但是，实际绘制代码的一些示例会很棒。

在飞机上包裹两个纹理？

1 个答案: