void CanvasGL::renderLayer(size_t idx) {
previousRenderedLayerIdx_ = idx;
if (imageGL_) {
const LayerGL* layerGL = imageGL_->getLayerGL(layerType_,idx);
if (layerGL) {
TextureUnit textureUnit;
layerGL->bindTexture(textureUnit.getEnum());
renderTexture(textureUnit.getUnitNumber());
layerGL->unbindTexture();
return;
} else {
renderNoise();
}
}
if (!image_) renderNoise();
}
//--------------------------------------------------------------
void testApp::update(){
if (offset_incr > 0) {
offset += offset_incr;
dirty = true;
}
if (dirty)
renderNoise(img);
}
void CanvasGL::render(const Image* image, LayerType layerType, size_t idx) {
image_ = image;
layerType_ = layerType;
pickingContainer_->setPickingSource(image_);
if (image_) {
imageGL_ = image_->getRepresentation<ImageGL>();
if (imageGL_ && imageGL_->getLayerGL(layerType_, idx)) {
checkChannels(imageGL_->getLayerGL(layerType_, idx)->getDataFormat()->getComponents());
} else {
checkChannels(image_->getDataFormat()->getComponents());
}
renderLayer(idx);
// Faster async download of textures sampled on interaction
if (imageGL_->getDepthLayerGL())
imageGL_->getDepthLayerGL()->getTexture()->downloadToPBO();
if (pickingContainer_->pickingEnabled() && imageGL_->getPickingLayerGL())
imageGL_->getPickingLayerGL()->getTexture()->downloadToPBO();
} else {
imageGL_ = nullptr;
renderNoise();
}
}
