让我先言承认我是一个开放的新手 – 这简直就是一个奇迹我已经用我一直在开发的游戏做到了这一点.
纹理在HTC Evo 3d,Droid Bionic和霹雳上看起来很好.我刚刚购买了Sprint三星Galaxy s2,纹理看起来很糟糕 – 我的理论是更大的屏幕,并产生了更低的dpi效果纹理mag过滤(我的另一个理论是我不知道我在做什么).
截图#1 Galaxy S2与HTC Evo 3d
屏幕截图#2 Galaxy S2 vs. HTC Evo 3d
我尝试使用16位,24位和32位纹理启用/禁用抖动,将选项传递给android BitmapFactory解码方法以防止缩放,在下面的片段中禁用我的opengl设置中的每个人,设置自定义eglconfig值的不同组合setEGLConfigChooser,我现在只是在黑暗中拍摄.
所以我的问题是：哪些opengl函数可以负责产生这些屏幕截图中看到的色带(？)/看起来很差的纹理？
另外值得注意的是：
>没有开放的gl错误(我记录每个open gl调用)
>当我添加更多光源时,应用程序性能会大幅下降(而htc evo 3d,仿生和霹雳在多个光源下的工作效果非常好).
> OpenGL ES 1.1(我的应用程序中没有GLES20是)
>我使用min 3d框架
>屏幕&解析度：
> HTC Evo 3d：4.3“屏幕540×960分辨率
> Samasung Sprint Galaxy s2：4.52“屏幕800×480分辨率
getWindowManager().getDefaultDisplay().getPixelFormat();
// HTC Evo 3d: 1 (PixelFormat.RGBA_8888)
// Sprint Samsung Galaxy s2: 5 (???)
在过去的三天里,我疯狂地搜索了一下,看看是否还有其他人遇到类似的问题并且什么都没发现.感谢您的时间.
//##################
//# setup (one time calls)
//##################
_gl.glEnable(GL11.GL_DITHER);
_gl.glEnable(GL10.GL_DEPTH_TEST);
_gl.glClearDepthf(1.0f);
_gl.glDepthFunc(GL10.GL_LESS);
_gl.glDepthRangef(0, 1f);
_gl.glDepthMask(true);
_gl.glShadeModel(GL10.GL_SMOOTH);
// Alpha enabled
_gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);
_gl.glAlphaFunc(GL10.GL_GREATER, 0.1f);
// CCW frontfaces only, by default
_gl.glFrontFace(GL10.GL_CCW);
_gl.glCullFace(GL10.GL_BACK);
_gl.glEnable(GL10.GL_CULL_FACE);
//##################
//# onSurfaceCreated
//##################
// build the lights - note this is specific to the min3d framework but
// its pretty straightforward - if a change is made to a light source the dirty flag is set
// and calls will be made to opengl to udpate accordingly in the onDrawFrame method
Light light1 = new Light();
light1.position.setAll(0, 10, 0);
light1.ambient= new Color4Managed(255, 255, 255, 255, light1);
light1.diffuse = new Color4Managed(255, 255, 255, 255, light1);
light1.specular = new Color4Managed(255, 255, 255, 255, light1);
light1.type(LightType.DIRECTIONAL);
_scene.lights().add(light1);
//##################
//# onSurfaceChanged
//##################
public void onSurfaceChanged(GL10 gl, int w, int h) {
this.w = w;
this.h = h;
_surfaceAspectRatio = (float) w / (float) h;
_gl.glViewport(0, 0, w, h);
// all the following updates the frustum
FrustumManaged vf = _scene.camera().frustum;
float n = vf.shortSideLength() / 2f;
float lt, rt, btm, top;
lt = vf.horizontalCenter() - n * _surfaceAspectRatio;
rt = vf.horizontalCenter() + n * _surfaceAspectRatio;
btm = vf.verticalCenter() - n * 1;
top = vf.verticalCenter() + n * 1;
if (_surfaceAspectRatio > 1) {
lt *= 1f / _surfaceAspectRatio;
rt *= 1f / _surfaceAspectRatio;
btm *= 1f / _surfaceAspectRatio;
top *= 1f / _surfaceAspectRatio;
}
_gl.glFrustumf(lt, rt, btm, top, vf.zNear(), vf.zFar());
Util.out("UPDATE VIEW FRUSTUM _surfaceAspectRatio: " + this._surfaceAspectRatio + " w: " + this.w + " h: " + this.h);
Util.out("UPDATE VIEW FRUSTUM lt: " + lt + " rt: " + rt + " btm: " + btm + " top: " + top + " vf.zNear(): " + vf.zNear() + " vf.zFar(): " + vf.zFar());
// sprint samsung galaxy 2s epic touch 4g
// 09-18 23:41:31.255: INFO/System.out(14069): 2011-09-18 23:41:31> UPDATE VIEW FRUSTUM _surfaceAspectRatio: 0.97959185 w: 480 h: 490
// 09-18 23:41:31.255: INFO/System.out(14069): 2011-09-18 23:41:31> UPDATE VIEW FRUSTUM lt: -0.48979592 rt: 0.48979592 btm: -0.5 top: 0.5 vf.zNear(): 1.0 vf.zFar(): 30.0
// htc evo 3d
// 09-18 23:46:16.744: INFO/System.out(7958): 2011-09-18 23:46:16> UPDATE VIEW FRUSTUM _surfaceAspectRatio: 0.83076924 w: 540 h: 650
// 09-18 23:46:16.754: INFO/System.out(7958): 2011-09-18 23:46:16> UPDATE VIEW FRUSTUM lt: -0.41538462 rt: 0.41538462 btm: -0.5 top: 0.5 vf.zNear(): 1.0 vf.zFar(): 30.0
}
//##################
//# upload texture
//##################
int[] a = new int[1];
_gl.glGenTextures(1, a, 0); // create a 'texture name' and put it in array element 0
_gl.glBindTexture(GL10.GL_TEXTURE_2D, a[0]);
if ($generateMipMap && _gl instanceof GL11) {
_gl.glTexParameterf(GL11.GL_TEXTURE_2D, GL11.GL_GENERATE_MIPMAP, GL11.GL_TRUE);
}else {
_gl.glTexParameterf(GL11.GL_TEXTURE_2D, GL11.GL_GENERATE_MIPMAP, GL11.GL_FALSE);
}
GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, $bitmap, 0);
//##################
//# onDrawFrame
//##################
// draw setup
_gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
// enable or disable lights
if(_scene.lights().isDirty()){
for (int glIndex = 0; glIndex < NUM_GLLIGHTS; glIndex++) {
if (_scene.lights().glIndexEnabledDirty()[glIndex] == true) {
if (_scene.lights().glIndexEnabled()[glIndex] == true) {
_gl.glEnable(GL10.GL_LIGHT0 + glIndex);
_scene.lights().getLightByGlIndex(glIndex).setAllDirty();
} else {
_gl.glDisable(GL10.GL_LIGHT0 + glIndex);
}
_scene.lights().glIndexEnabledDirty()[glIndex] = false; // clear dirtyflag
}
}
_scene.lights().clearDirtyFlag();
}
// handle individual light settings
Light[] lights = _scene.lights().toArray();
for (int i = 0; i < lights.length; i++) {
Light light = lights[i];
if (light.isDirty()) // .. something has changed
{
int glLightId = GL10.GL_LIGHT0 + _scene.lights().getGlIndexByLight(light);
if (light.position.isDirty()) {
light.commitPositionAndTypeBuffer();
_gl.glLightfv(glLightId, GL10.GL_POSITION, light.positionAndTypeBuffer());
light.position.clearDirtyFlag();
}
if (light.ambient.isDirty()) {
light.ambient.commitToFloatBuffer();
_gl.glLightfv(glLightId, GL10.GL_AMBIENT, ligh t.ambient.floatBuffer());
light.ambient.clearDirtyFlag();
}
if (light.diffuse.isDirty()) {
light.diffuse.commitToFloatBuffer();
_gl.glLightfv(glLightId, GL10.GL_DIFFUSE, light.diffuse.floatBuffer());
light.diffuse.clearDirtyFlag();
}
if (light.specular.isDirty()) {
light.specular.commitToFloatBuffer();
_gl.glLightfv(glLightId, GL10.GL_SPECULAR, light.specular.floatBuffer());
light.specular.clearDirtyFlag();
}
if (light.isVisibleBm().isDirty()) {
if (light.isVisible()) {
_gl.glEnable(glLightId);
} else {
_gl.glDisable(glLightId);
}
light.isVisibleBm().clearDirtyFlag();
}
if (light.attenuation().isDirty()) {
_gl.glLightf(glLightId, GL10.GL_CONSTANT_ATTENUATION, light.attenuation().getX());
_gl.glLightf(glLightId, GL10.GL_LINEAR_ATTENUATION, ligh t.attenuation().getY());
_gl.glLightf(glLightId, GL10.GL_QUADRATIC_ATTENUATION, light.attenuation().getZ());
}
light.clearDirtyFlag();
}
}
// finally draw objects (see definition below)
foreach(Object3d $o : _scene.children()){
drawObject($o);
}
//##################
//# draw 3d object
//##################
_gl.glEnable(GL10.GL_LIGHTING);
_gl.glEnable(GL10.GL_TEXTURE_2D);
_gl.glEnable(GL10.GL_ALPHA_TEST);
_gl.glEnable(GL10.GL_BLEND);
_gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
_gl.glEnableClientState(GL10.GL_NORMAL_ARRAY);
_gl.glDisableClientState(GL10.GL_COLOR_ARRAY);
$o.vertices().normals().buffer().position(0);
_gl.glNormalPointer(GL10.GL_FLOAT, 0, $o.vertices().normals().buffer());
_gl.glEnable(GL10.GL_CULL_FACE);
// draw texture function info below
drawObject_textures($o);
_gl.glTranslatef($o.position().x, $o.position().y, $o.position().z);
_gl.glRotatef(($o.rotation().x), 1, 0, 0);
_gl.glRotatef(($o.rotation().y), 0, 1, 0);
_gl.glRotatef(($o.rotation().z), 0, 0, 1);
_gl.glScalef($o.scale().x, $o.scale().y, $o.scale().z);
$o.vertices().points().buffer().position(0);
_gl.glVertexPointer(3, GL10.GL_FLOAT, 0, $o.vertices().points().buffer());
$o.faces().buffer().position(pos);
_gl.glDrawElements($o.renderTypeInt(), $o.faces().size() * FacesBufferedList.PROPERTIES_PER_ELEMENT, GL10.GL_UNSIGNED_SHORT,$o.faces().buffer());
//##################
//# draw texture
//##################
int minFilterType = ZoneActivity.mipmap ? GL10.GL_NEAREST_MIPMAP_NEAREST : GL10.GL_NEAREST;
$o.vertices().uvs().buffer().position(0);
_gl.glActiveTexture(GL10.GL_TEXTURE0 );
_gl.glClientActiveTexture(GL10.GL_TEXTURE0);
_gl.glBindTexture(GL10.GL_TEXTURE_2D, $o.glTextureId);
_gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, $o.vertices().uvs().buffer());
_gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, minFilterType);
_gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_NEAREST);
_gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_S, GL10.GL_REPEAT);
_gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_T, GL10.GL_REPEAT);
编辑：事实证明这是我.看起来像纹理问题是将不正确的值传递给雾函数的副作用(我自然从代码示例中省略了这些函数).
坏
// I was not converting my rgba shorts to the expected range (0.0f, 1.0f).
// the evo 3d, bionic, etc. must compensate for people like me and translate
// this to white so i never knew there was a problem
_gl.glFogfv(GL10.GL_FOG_COLOR, [255f,255f,255f,255f]);
好
_gl.glFogfv(GL10.GL_FOG_COLOR, [1.0f, 1.0f, 1.0f, 1.0f]);
关闭它可能是安全的.
解决方法:
这是在黑暗中刺伤,(我没有使用GL多年)但从你发布的图像和代码行判断“GL10.GL_NEAREST_MIPMAP_NEAREST”或(甚至更糟！)“GL10.GL_NEAREST”,你是会得到丑陋的纹理过滤.请尝试使用“LINEAR”过滤器.
标签：android,opengl-es,textures 来源： https://codeday.me/bug/20190709/1418322.html
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