void Background::process() {
if (inport_.hasData() != hadData_) initializeResources();
if (inport_.hasData()) {
utilgl::activateTargetAndCopySource(outport_, inport_, ImageType::ColorOnly);
} else {
utilgl::activateTarget(outport_, ImageType::ColorOnly);
}
shader_.activate();
TextureUnitContainer units;
if (inport_.hasData()) utilgl::bindAndSetUniforms(shader_, units, inport_, ImageType::ColorOnly);
utilgl::setUniforms(shader_, outport_, color1_, color2_, checkerBoardSize_);
utilgl::singleDrawImagePlaneRect();
shader_.deactivate();
utilgl::deactivateCurrentTarget();
}
TMIP::TMIP()
: Processor()
, inport_("inport")
, outport_("outport")
, shader_("volume_gpu.vert", "volume_gpu.geom", "tmip.frag", false)
, shaderLast_("volume_gpu.vert", "volume_gpu.geom", "tmip.frag", false)
, fbo_() {
addPort(inport_);
addPort(outport_);
inport_.onChange([this]() { initializeResources(); });
glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &maxSamplers_);
maxSamplers_ -= 1;
// maxVolumesGL_ = 2;
}