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Sometimes the live2d model shows darkness

edited February 2016 in Help

Comments

  • Hi, Yongjxu .

    Only this image information can't identify the cause .
    Please tell me the detailed information .
    ( Your OS, development environment , SDK Version or Program code etc...)

    I know the same thing will happen in the change of texture color in Unity .

    >> Transparency and texture color change of Live2D

  • IOS, use cocos2d-x3.5 with live2d 2.0.06_3.
    As the image shows, the live2dSprite.cpp and live2dSprite.h is my code.

    1.png 34.3K
  • Live2dSprite* Live2dSprite::createLive2dNode(const std::string& modelDir, const std::string& modelFileName, const cocos2d::Size &size)
    {
    Live2dSprite *sprite = new (std::nothrow) Live2dSprite(modelDir,modelFileName, size);
    if (sprite)
    {
    sprite->autorelease();
    return sprite;
    }
    CC_SAFE_DELETE(sprite);
    return nullptr;

    }

    Live2dSprite::Live2dSprite(const std::string& modelDir,
    const std::string& modelFileName,
    const Size &size):
    DrawNode(), touchMgr(nullptr),deviceToScreen(nullptr),
    viewMatrix(nullptr), l2d_model(nullptr),_eventListener(nullptr),
    l2d_size(size),_shadow(1.0),_isRenderShadow(false)
    {
    l2d_model = new LAppModel();
    l2d_model->load(modelDir.c_str(), modelFileName.c_str());
    model_width = l2d_model->getCanvasWidth();
    model_height = l2d_model->getCanvasHeight();

    touchMgr=new TouchManager();

    deviceToScreen = new L2DMatrix44();

    viewMatrix = new L2DViewMatrix();

    //Size size=Director::getInstance()->getWinSize();

    float width= l2d_size.width;
    float height= l2d_size.height;
    float ratio=(float)height/width;
    float left = VIEW_LOGICAL_LEFT;
    float right = VIEW_LOGICAL_RIGHT;
    float bottom = -ratio;
    float top = ratio;
    _scale = _scaleX = 1.0f;

    viewMatrix->setScreenRect(left,right,bottom,top);

    float screenW=abs(left-right);
    deviceToScreen->multTranslate(-width/2.0f,-height/2.0f );
    deviceToScreen->multScale( screenW/width , -screenW/width );

    viewMatrix->setMaxScale( VIEW_MAX_SCALE );
    viewMatrix->setMinScale( VIEW_MIN_SCALE );


    viewMatrix->setMaxScreenRect(
    VIEW_LOGICAL_MAX_LEFT,
    VIEW_LOGICAL_MAX_RIGHT,
    VIEW_LOGICAL_MAX_BOTTOM,
    VIEW_LOGICAL_MAX_TOP
    );

    }

    void Live2dSprite::draw(cocos2d::Renderer *renderer, const cocos2d::Mat4 &transform, uint32_t flags)
    {
    DrawNode::draw(renderer, transform, flags);

    _customCommand.init(_globalZOrder);
    _customCommand.func = CC_CALLBACK_0(Live2dSprite::onDraw, this, transform, flags);
    renderer->addCommand(&_customCommand);
    }


    void Live2dSprite::onDraw(const cocos2d::Mat4 &transform, uint32_t flags)
    {
    this->updatePosition(ccpAdd( getParent()->getPosition(), getPosition()));
    kmGLPushMatrix();
    kmGLLoadMatrix(&transform);

    if(_isRenderShadow)
    {
    int size = l2d_model->getModelSetting()->getTextureNum();
    auto model = ((Live2DModelOpenGL*)l2d_model->getLive2DModel());
    for(int i = 0;isetTextureColor(i, 0.0, 0.0, 0.0, 0);
    }
    }

    // colors
    glEnableVertexAttribArray(GLProgram::VERTEX_ATTRIB_COLOR);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(V2F_C4B_T2F), (GLvoid *)offsetof(V2F_C4B_T2F, colors));
    modelUpdate();

    if(_isRenderShadow)
    {
    int size = l2d_model->getModelSetting()->getTextureNum();
    auto model = ((Live2DModelOpenGL*)l2d_model->getLive2DModel());
    for(int i = 0;isetTextureColor(i, _shadow, _shadow, _shadow, 0);
    }
    }

    kmGLPopMatrix();
    glFrontFace(GL_CCW);
    }


    void Live2dSprite::modelUpdate()
    {
    live2d::DrawProfileCocos2D::preDraw();

    L2DMatrix44 projection;

    Director* director=Director::getInstance();
    Size window=director->getWinSize();

    projection.scale(1, window.width/window.height);
    //float scale = model_width/window.width;
    //projection.scale(scale, window.width/window.height * scale);
    if (viewMatrix != NULL) {
    projection.append(viewMatrix);
    }


    if(l2d_model != NULL)
    {
    l2d_model->update();
    l2d_model->draw(projection);
    }

    live2d::DrawProfileCocos2D::postDraw();
    }
  • Are you using the setBaseColor to the texture color change ?

    Live2D API Reference - DrawParam->setBaseColor()

    What is isetTextureColor?
    I think that perhaps _shadow becomes 0.0 .
    isetTextureColor(i, _shadow, _shadow, _shadow, 0)
    I think it is draw correctly if you use the following .
    DrawParam->setBaseColor(1.0, 1.0, 1.0, 1.0)
  • I have removed the code setTextureColor. And it still happens.
    void Live2dSprite::setShadowOnModel(float shadow)
    {
    if(shadow>1.0 || shadow<0.0)
    {
    shadow = 1.0;
    }
    _shadow = shadow;
    /*
    if(l2d_model)
    {
    int size = l2d_model->getModelSetting()->getTextureNum();
    auto model = ((Live2DModelOpenGL*)l2d_model->getLive2DModel());
    for(int i = 0;isetTextureColor(i, _shadow, _shadow, _shadow, 0);
    }
    }
    */
    }

    void Live2dSprite::onDraw(const cocos2d::Mat4 &transform, uint32_t flags)
    {
    this->updatePosition(ccpAdd( getParent()->getPosition(), getPosition()));
    kmGLPushMatrix();
    kmGLLoadMatrix(&transform);
    /*
    if(_isRenderShadow)
    {
    int size = l2d_model->getModelSetting()->getTextureNum();
    auto model = ((Live2DModelOpenGL*)l2d_model->getLive2DModel());
    for(int i = 0;isetTextureColor(i, 0.0, 0.0, 0.0, 0);
    }
    }
    */
    // colors
    glEnableVertexAttribArray(GLProgram::VERTEX_ATTRIB_COLOR);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(V2F_C4B_T2F), (GLvoid *)offsetof(V2F_C4B_T2F, colors));
    modelUpdate();
    /*
    if(_isRenderShadow)
    {
    int size = l2d_model->getModelSetting()->getTextureNum();
    auto model = ((Live2DModelOpenGL*)l2d_model->getLive2DModel());
    for(int i = 0;isetTextureColor(i, _shadow, _shadow, _shadow, 0);
    }
    }
    */
    kmGLPopMatrix();
    glFrontFace(GL_CCW);
    }
  • So I said, use the following API !
    DrawParam->setBaseColor(1.0, 1.0, 1.0, 1.0)
  • I have using the API you said, the bugs still shows after I load and release the live2d model for dozens of times.
    As you can see, left image the bug shows and right image shows when I set the texture color to black.

    Code:

    void Live2dSprite::onDraw(const cocos2d::Mat4 &transform, uint32_t flags)
    {
    this->updatePosition(ccpAdd( getParent()->getPosition(), getPosition()));
    kmGLPushMatrix();
    kmGLLoadMatrix(&transform);

    l2d_model->getLive2DModel()->getDrawParam()->setBaseColor(1.0, 1.0, 1.0, 1.0);

    // colors
    glEnableVertexAttribArray(GLProgram::VERTEX_ATTRIB_COLOR);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(V2F_C4B_T2F), (GLvoid *)offsetof(V2F_C4B_T2F, colors));
    modelUpdate();
    kmGLPopMatrix();
    glFrontFace(GL_CCW);
    }
  • edited December 2015
    I See . Please ignore the contents of which I have commented in the past .
    In code that you have posted the first time in this discussion , What happens if you have modified as follows ?
    isetTextureColor(i, _shadow, _shadow, _shadow, 0);
                ↓
    isetTextureColor(i, 1.0, 1.0, 1.0, 0);
    In the case of Simple project of cocos2d-X Live2D SDK, I was able to change the texture color in setBaseColor().

    [SampleLive2DSprite.cpp]

    void SampleLive2DSprite::onDraw(const cocos2d::Mat4 &transform, uint32_t flags)
    {
    	kmGLPushMatrix();
        kmGLLoadMatrix(&transform);
    	 
    	double t = (UtSystem::getUserTimeMSec()/1000.0) * 2 * M_PI;
    	double cycle=3.0;
    	double value=sin( t/cycle );
    	live2DModel->setParamFloat( "PARAM_ANGLE_X" , (float) (30 * value) ) ;
    	live2d::DrawProfileCocos2D::preDraw();    
        // << add Code >> Texture Color = Black
        // live2DModel->getDrawParam()->setBaseColor(1.0, 0.0, 0.0, 0.0);
        // << add Code >> Texture Color = Default
       live2DModel->getDrawParam()->setBaseColor(1.0, 1.0, 1.0, 1.0);
        
    	live2DModel->update() ;
    	live2DModel->draw() ;
    	
    	live2d::DrawProfileCocos2D::postDraw() ;
    	kmGLPopMatrix();
    }
    



    In your program , I think that it probably has been changed texture color in isetTextureColor .
    In a program that has been posted on here , I don't know detailed processing of isetTextureColor.
    Probably you don't have the same process as setBaseColor?

    Or it might be a problem of the model .
    How do you Test in Live2D of sample models ?

    Live2D Manual - Live2D Sample Model


    And I'm sorry if the cause is completely different .
    I know it is only this . thanks !
  • Thanks for your support. I have found the root cause for the problem.

    I have made the flowing change in file LAppTextureDesc.cpp.

    LAppTextureDesc::LAppTextureDesc(cocos2d::Texture2D* tex,std::string fileName)
    {
    data=tex;
    tex->retain();
    textureFileName=fileName;
    }

    LAppTextureDesc::~LAppTextureDesc()
    {
    data->release();
    if(data->getReferenceCount() == 1)
    Director::getInstance()->getTextureCache()->removeTextureForKey(textureFileName);

    }
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