ColorCorrectionCamera::ColorCorrectionCamera(SceneGraph::AbstractObject2D& object): SceneGraph::Camera2D(object), framebuffer(Range2Di::fromSize(defaultFramebuffer.viewport().bottomLeft(), defaultFramebuffer.viewport().size()/2)) {
setAspectRatioPolicy(SceneGraph::AspectRatioPolicy::Clip);
setViewport(defaultFramebuffer.viewport().size());
original.setStorage(RenderbufferFormat::RGBA8, framebuffer.viewport().size());
grayscale.setStorage(RenderbufferFormat::RGBA8, framebuffer.viewport().size());
corrected.setStorage(RenderbufferFormat::RGBA8, framebuffer.viewport().size());
framebuffer.attachRenderbuffer(Framebuffer::ColorAttachment(Original), original);
framebuffer.attachRenderbuffer(Framebuffer::ColorAttachment(Grayscale), grayscale);
framebuffer.attachRenderbuffer(Framebuffer::ColorAttachment(Corrected), corrected);
framebuffer.mapForDraw({{ColorCorrectionShader::OriginalColorOutput, Framebuffer::ColorAttachment(Original)},
{ColorCorrectionShader::GrayscaleOutput, Framebuffer::ColorAttachment(Grayscale)},
{ColorCorrectionShader::ColorCorrectedOutput, Framebuffer::ColorAttachment(Corrected)}});
}
Camera::Camera(Object3D* parent): Object3D(parent), SceneGraph::Camera3D(*this), _blurred(true), multisampleFramebuffer({{}, defaultFramebuffer.viewport().size()/8}), framebuffer1(multisampleFramebuffer.viewport()), framebuffer2(multisampleFramebuffer.viewport()), blurShaderHorizontal(Shaders::Blur::Direction::Horizontal), blurShaderVertical(Shaders::Blur::Direction::Vertical) {
/* Get full screen triangle */
fullScreenTriangleBuffer = SceneResourceManager::instance().get<Buffer>("fullscreentriangle");
fullScreenTriangle = SceneResourceManager::instance().get<Mesh>("fullscreentriangle");
setPerspective(Deg(35.0f), 1.0f, 0.001f, 100.0f);
setAspectRatioPolicy(SceneGraph::AspectRatioPolicy::Extend);
SceneGraph::Camera3D::setViewport(defaultFramebuffer.viewport().size());
/* Decide about multisampling on ES2 */
#ifdef MAGNUM_TARGET_GLES2
if(Context::current()->isExtensionSupported<Extensions::GL::ANGLE::framebuffer_multisample>() ||
Context::current()->isExtensionSupported<Extensions::GL::NV::framebuffer_multisample>()) {
_multisample = true;
} else {
Debug() << "Neither" << Extensions::GL::ANGLE::framebuffer_multisample::string()
<< "nor" << Extensions::GL::NV::framebuffer_multisample::string()
<< "is supported, expect ugly blur :-)";
_multisample = false;
}
#else
_multisample = true;
#endif
/* Configure depth buffer */
RenderbufferFormat depthFormat = RenderbufferFormat::DepthComponent24;
#ifdef MAGNUM_TARGET_GLES2
if(!Context::current()->isExtensionSupported<Extensions::GL::OES::depth24>()) {
Debug() << Extensions::GL::OES::depth24::string() << "not supported, fallback to 16bit depth buffer";
depthFormat = RenderbufferFormat::DepthComponent16;
}
#endif
depth.setStorage(depthFormat, multisampleFramebuffer.viewport().size());
framebuffer1.attachRenderbuffer(Framebuffer::BufferAttachment::Depth, depth);
framebuffer2.attachRenderbuffer(Framebuffer::BufferAttachment::Depth, depth);
/* Configure multisample framebuffer */
if(_multisample) {
#ifdef MAGNUM_TARGET_GLES
MAGNUM_ASSERT_EXTENSION_SUPPORTED(Extensions::GL::OES::rgb8_rgba8);
#endif
multisampleColor.setStorageMultisample(16, RenderbufferFormat::RGBA8, multisampleFramebuffer.viewport().size());
multsampleDepth.setStorageMultisample(16, depthFormat, multisampleFramebuffer.viewport().size());
multisampleFramebuffer.attachRenderbuffer(Framebuffer::ColorAttachment(0), multisampleColor);
multisampleFramebuffer.attachRenderbuffer(Framebuffer::BufferAttachment::Depth, multsampleDepth);
CORRADE_INTERNAL_ASSERT(multisampleFramebuffer.checkStatus(FramebufferTarget::ReadDraw) == Framebuffer::Status::Complete);
}
/* Configure textures */
TextureFormat internalFormat = TextureFormat::RGB8;
#ifdef MAGNUM_TARGET_GLES
if(!Context::current()->isExtensionSupported<Extensions::GL::OES::required_internalformat>())
internalFormat = TextureFormat::RGB;
#endif
texture1.setStorage(1, internalFormat, multisampleFramebuffer.viewport().size())
.setMagnificationFilter(Sampler::Filter::Linear)
.setMinificationFilter(Sampler::Filter::Nearest)
.setWrapping(Sampler::Wrapping::ClampToEdge);
texture2.setStorage(1, internalFormat, multisampleFramebuffer.viewport().size())
.setMagnificationFilter(Sampler::Filter::Linear)
.setMinificationFilter(Sampler::Filter::Nearest)
.setWrapping(Sampler::Wrapping::ClampToEdge);
framebuffer1.attachTexture(Framebuffer::ColorAttachment(0), texture1, 0);
framebuffer2.attachTexture(Framebuffer::ColorAttachment(0), texture2, 0);
/* Verify that everything is sane */
CORRADE_INTERNAL_ASSERT(framebuffer1.checkStatus(FramebufferTarget::ReadDraw) == Framebuffer::Status::Complete);
CORRADE_INTERNAL_ASSERT(framebuffer2.checkStatus(FramebufferTarget::ReadDraw) == Framebuffer::Status::Complete);
}
Camera::Camera(Object3D* parent): Object3D(parent), SceneGraph::Camera3D<>(this) {
setPerspective(Deg(35.0f), 1.0f, 0.001f, 100.0f);
setAspectRatioPolicy(SceneGraph::AspectRatioPolicy::Extend);
}
