bool SpriteBlur::initWithTexture(Texture2D* texture, const Rect& rect)
{
_blurRadius = 0;
if( Sprite::initWithTexture(texture, rect) )
{
#if CC_ENABLE_CACHE_TEXTURE_DATA
auto listener = EventListenerCustom::create(EVENT_RENDERER_RECREATED, [this](EventCustom* event){
initGLProgram();
});
_eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);
#endif
initGLProgram();
return true;
}
return false;
}
bool ShadowMapVSM::init(const glk::Size &framebufferSize)
{
_framebufferSize = framebufferSize;
//创建颜色纹理
int defaultTexture, defaultFramebufferId,renderbufferId;
glGetIntegerv(GL_TEXTURE_BINDING_2D,&defaultTexture);
glGetIntegerv(GL_RENDERBUFFER_BINDING, &renderbufferId);
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &defaultFramebufferId);
glGenTextures(2,_textureIds);
float anisotropic = 0;
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &anisotropic);
for (int k = 0; k < 2; ++k)
{
glBindTexture(GL_TEXTURE_2D, _textureIds[k]);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT,8);
//int uu = GL_VERSION_3_0;
glTexStorage2D(GL_TEXTURE_2D, 1, GL_RG32F,framebufferSize.width,framebufferSize.height);
//glTexImage2D(GL_TEXTURE_2D,0,GL_RG32F,framebufferSize.width,framebufferSize.height,0,GL_RG,GL_FLOAT,nullptr);
}
//depth-texture
glGenRenderbuffers(1, &_depthTextureId);
glBindRenderbuffer(GL_RENDERBUFFER, _depthTextureId);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, framebufferSize.width, framebufferSize.height);
//
glGenFramebuffers(3, _framebufferIds);
glBindFramebuffer(GL_FRAMEBUFFER,_framebufferIds[0]);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _textureIds[0], 0);
glFramebufferTexture2D(GL_FRAMEBUFFER,GL_DEPTH_ATTACHMENT,GL_RENDERBUFFER,_depthTextureId,0);
assert(glCheckFramebufferStatus(GL_FRAMEBUFFER)==GL_FRAMEBUFFER_COMPLETE);
glBindFramebuffer(GL_FRAMEBUFFER,_framebufferIds[1]);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _textureIds[1], 0);
glDrawBuffer(GL_COLOR_ATTACHMENT0);
assert(glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE);
glBindFramebuffer(GL_FRAMEBUFFER,_framebufferIds[2]);
glFramebufferTexture2D(GL_FRAMEBUFFER,GL_COLOR_ATTACHMENT0,GL_TEXTURE_2D,_textureIds[0],0);
glDrawBuffer(GL_COLOR_ATTACHMENT0);
assert(glCheckFramebufferStatus(GL_FRAMEBUFFER)==GL_FRAMEBUFFER_COMPLETE);
glBindTexture(GL_TEXTURE_2D,defaultTexture);
glBindRenderbuffer(GL_RENDERBUFFER, renderbufferId);
glBindFramebuffer(GL_FRAMEBUFFER, defaultFramebufferId);
initGLProgram();
initBuffer();
return true;
}
