add macOS implementation
This commit is contained in:
Nick Fisher
962
macos/src/FilamentViewer.cpp
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962
macos/src/FilamentViewer.cpp
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#if __APPLE__
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#include "TargetConditionals.h"
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#endif
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/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <filament/Camera.h>
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#include <backend/DriverEnums.h>
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#include <filament/ColorGrading.h>
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#include <filament/Engine.h>
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#include <filament/IndexBuffer.h>
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#include <filament/IndirectLight.h>
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#include <filament/Options.h>
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#include <filament/Renderer.h>
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#include <filament/RenderTarget.h>
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#include <filament/Scene.h>
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#include <filament/Skybox.h>
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#include <filament/TransformManager.h>
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#include <filament/VertexBuffer.h>
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#include <filament/View.h>
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#include <filament/Viewport.h>
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#include <filament/RenderableManager.h>
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#include <filament/LightManager.h>
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#include <gltfio/Animator.h>
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#include <gltfio/AssetLoader.h>
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#include <gltfio/FilamentAsset.h>
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#include <gltfio/ResourceLoader.h>
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#include <gltfio/TextureProvider.h>
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#include <gltfio/materials/uberarchive.h>
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#include <utils/NameComponentManager.h>
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#include <imageio/ImageDecoder.h>
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#include "math.h"
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#include <math/mat4.h>
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#include <math/TVecHelpers.h>
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#include <math/quat.h>
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#include <math/scalar.h>
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#include <math/vec3.h>
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#include <math/vec4.h>
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#include <ktxreader/Ktx1Reader.h>
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#include <ktxreader/Ktx2Reader.h>
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#include <iostream>
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#include <fstream>
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#include <mutex>
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#include "Log.hpp"
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#include "FilamentViewer.hpp"
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#include "StreamBufferAdapter.hpp"
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#include "material/image.h"
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#include "TimeIt.hpp"
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using namespace filament;
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using namespace filament::math;
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using namespace gltfio;
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using namespace utils;
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using namespace image;
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namespace filament {
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class IndirectLight;
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class LightManager;
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} // namespace filament
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namespace polyvox {
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const double kNearPlane = 0.05; // 5 cm
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const double kFarPlane = 1000.0; // 1 km
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// const float kAperture = 1.0f;
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// const float kShutterSpeed = 1.0f;
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// const float kSensitivity = 50.0f;
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struct Vertex {
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filament::math::float2 position;
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uint32_t color;
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};
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static constexpr float4 sFullScreenTriangleVertices[3] = {
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{ -1.0f, -1.0f, 1.0f, 1.0f },
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{ 3.0f, -1.0f, 1.0f, 1.0f },
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{ -1.0f, 3.0f, 1.0f, 1.0f } };
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static const uint16_t sFullScreenTriangleIndices[3] = {0, 1, 2};
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FilamentViewer::FilamentViewer(const void* context, const ResourceLoaderWrapper* const resourceLoaderWrapper)
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: _resourceLoaderWrapper(resourceLoaderWrapper) {
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#if TARGET_OS_IPHONE
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_engine = Engine::create(Engine::Backend::METAL);
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#elif TARGET_OS_MAC
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_engine = Engine::create(Engine::Backend::METAL);
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#else
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_engine = Engine::create(Engine::Backend::OPENGL, nullptr, (void*)context, nullptr);
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#endif
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_renderer = _engine->createRenderer();
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float fr = 60.0f;
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_renderer->setDisplayInfo({.refreshRate = fr});
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Renderer::FrameRateOptions fro;
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fro.interval = 1 / fr;
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_renderer->setFrameRateOptions(fro);
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_scene = _engine->createScene();
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Log("Scene created");
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utils::Entity camera = EntityManager::get().create();
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_mainCamera = _engine->createCamera(camera);
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Log("Main camera created");
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_view = _engine->createView();
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setToneMapping(ToneMapping::ACES);
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setBloom(0.6f);
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_view->setScene(_scene);
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_view->setCamera(_mainCamera);
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_cameraFocalLength = 28.0f;
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_mainCamera->setLensProjection(_cameraFocalLength, 1.0f, kNearPlane,
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kFarPlane);
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// _mainCamera->setExposure(kAperture, kShutterSpeed, kSensitivity);
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const float aperture = _mainCamera->getAperture();
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const float shutterSpeed = _mainCamera->getShutterSpeed();
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const float sens = _mainCamera->getSensitivity();
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// _mainCamera->setExposure(2.0f, 1.0f, 1.0f);
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Log("Camera aperture %f shutter %f sensitivity %f", aperture, shutterSpeed, sens);
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View::DynamicResolutionOptions options;
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options.enabled = false;
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// options.homogeneousScaling = homogeneousScaling;
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// options.minScale = filament::math::float2{ minScale };
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// options.maxScale = filament::math::float2{ maxScale };
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// options.sharpness = sharpness;
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// options.quality = View::QualityLevel::ULTRA;
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_view->setDynamicResolutionOptions(options);
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View::MultiSampleAntiAliasingOptions multiSampleAntiAliasingOptions;
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multiSampleAntiAliasingOptions.enabled = true;
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_view->setMultiSampleAntiAliasingOptions(multiSampleAntiAliasingOptions);
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_view->setAntiAliasing(AntiAliasing::NONE);
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// auto materialRb = _resourceLoader->load("file:///mnt/hdd_2tb/home/hydroxide/projects/filament/unlit.filamat");
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// Log("Loaded resource of size %d", materialRb.size);
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// _materialProvider = new FileMaterialProvider(_engine, (void*) materialRb.data, (size_t)materialRb.size);
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EntityManager &em = EntityManager::get();
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_ncm = new NameComponentManager(em);
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_assetManager = new AssetManager(
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_resourceLoaderWrapper,
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_ncm,
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_engine,
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_scene);
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_imageTexture = Texture::Builder()
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.width(1)
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.height(1)
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.levels(0x01)
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.format(Texture::InternalFormat::RGB16F)
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.sampler(Texture::Sampler::SAMPLER_2D)
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.build(*_engine);
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_imageMaterial =
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Material::Builder()
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.package(IMAGE_PACKAGE, IMAGE_IMAGE_SIZE)
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.build(*_engine);
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_imageMaterial->setDefaultParameter("showImage",0);
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_imageMaterial->setDefaultParameter("backgroundColor", RgbaType::sRGB, float4(0.5f, 0.5f, 0.5f, 1.0f));
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_imageMaterial->setDefaultParameter("image", _imageTexture, _imageSampler);
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_imageScale = mat4f { 1.0f , 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f };
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_imageMaterial->setDefaultParameter("transform", _imageScale);
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_imageVb = VertexBuffer::Builder()
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.vertexCount(3)
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.bufferCount(1)
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.attribute(VertexAttribute::POSITION, 0,
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VertexBuffer::AttributeType::FLOAT4, 0)
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.build(*_engine);
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_imageVb->setBufferAt(
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*_engine, 0,
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{sFullScreenTriangleVertices, sizeof(sFullScreenTriangleVertices)});
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_imageIb = IndexBuffer::Builder()
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.indexCount(3)
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.bufferType(IndexBuffer::IndexType::USHORT)
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.build(*_engine);
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_imageIb->setBuffer(*_engine, {sFullScreenTriangleIndices,
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sizeof(sFullScreenTriangleIndices)});
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utils::Entity imageEntity = em.create();
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RenderableManager::Builder(1)
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.boundingBox({{}, {1.0f, 1.0f, 1.0f}})
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.material(0, _imageMaterial->getDefaultInstance())
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.geometry(0, RenderableManager::PrimitiveType::TRIANGLES, _imageVb,
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_imageIb, 0, 3)
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.culling(false)
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.build(*_engine, imageEntity);
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_imageEntity = &imageEntity;
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_scene->addEntity(imageEntity);
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}
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void FilamentViewer::setBloom(float strength) {
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decltype(_view->getBloomOptions()) opts;
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opts.enabled = true;
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opts.strength = strength;
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_view->setBloomOptions(opts);
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}
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void FilamentViewer::setToneMapping(ToneMapping toneMapping) {
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ToneMapper* tm;
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switch(toneMapping) {
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case ToneMapping::ACES:
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tm = new ACESToneMapper();
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break;
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case ToneMapping::LINEAR:
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tm = new LinearToneMapper();
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break;
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case ToneMapping::FILMIC:
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tm = new FilmicToneMapper();
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break;
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}
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auto newColorGrading = ColorGrading::Builder().toneMapper(tm).build(*_engine);
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_view->setColorGrading(newColorGrading);
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_engine->destroy(colorGrading);
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delete tm;
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}
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void FilamentViewer::setFrameInterval(float frameInterval) {
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Renderer::FrameRateOptions fro;
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fro.interval = frameInterval;
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_renderer->setFrameRateOptions(fro);
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Log("Set framerate interval to %f", frameInterval);
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}
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int32_t FilamentViewer::addLight(LightManager::Type t, float colour, float intensity, float posX, float posY, float posZ, float dirX, float dirY, float dirZ, bool shadows) {
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auto light = EntityManager::get().create();
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LightManager::Builder(t)
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.color(Color::cct(colour))
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.intensity(intensity)
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.position(math::float3(posX, posY, posZ))
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.direction(math::float3(dirX, dirY, dirZ))
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.castShadows(shadows)
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.build(*_engine, light);
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_scene->addEntity(light);
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_lights.push_back(light);
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auto entityId = Entity::smuggle(light);
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Log("Added light under entity ID %d of type %d with colour %f intensity %f at (%f, %f, %f) with direction (%f, %f, %f) with shadows %d", entityId, t, colour, intensity, posX, posY, posZ, dirX, dirY, dirZ, shadows);
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return entityId;
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}
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void FilamentViewer::removeLight(EntityId entityId) {
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Log("Removing light with entity ID %d", entityId);
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auto entity = utils::Entity::import(entityId);
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if(entity.isNull()) {
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Log("Error: light entity not found under ID %d", entityId);
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} else {
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auto removed = remove(_lights.begin(), _lights.end(), entity);
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_scene->remove(entity);
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EntityManager::get().destroy(1, &entity);
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}
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}
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void FilamentViewer::clearLights() {
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Log("Removing all lights");
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_scene->removeEntities(_lights.data(), _lights.size());
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EntityManager::get().destroy(_lights.size(), _lights.data());
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_lights.clear();
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}
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static bool endsWith(string path, string ending) {
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return path.compare(path.length() - ending.length(), ending.length(), ending) == 0;
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}
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void FilamentViewer::loadKtx2Texture(string path, ResourceBuffer rb) {
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// TODO - check all this
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// ktxreader::Ktx2Reader reader(*_engine);
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// reader.requestFormat(Texture::InternalFormat::DXT3_SRGBA);
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// reader.requestFormat(Texture::InternalFormat::DXT3_RGBA);
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// // Uncompressed formats are lower priority, so they get added last.
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// reader.requestFormat(Texture::InternalFormat::SRGB8_A8);
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// reader.requestFormat(Texture::InternalFormat::RGBA8);
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// // std::ifstream inputStream("/data/data/app.polyvox.filament_example/foo.ktx", ios::binary);
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// // auto contents = vector<uint8_t>((istreambuf_iterator<char>(inputStream)), {});
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// _imageTexture = reader.load(contents.data(), contents.size(),
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// ktxreader::Ktx2Reader::TransferFunction::LINEAR);
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}
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void FilamentViewer::loadKtxTexture(string path, ResourceBuffer rb) {
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ktxreader::Ktx1Bundle *bundle =
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new ktxreader::Ktx1Bundle(static_cast<const uint8_t *>(rb.data),
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static_cast<uint32_t>(rb.size));
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_imageTexture =
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ktxreader::Ktx1Reader::createTexture(_engine, *bundle, false, [](void* userdata) {
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Ktx1Bundle* bundle = (Ktx1Bundle*) userdata;
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delete bundle;
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}, bundle);
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auto info = bundle->getInfo();
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_imageWidth = info.pixelWidth;
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_imageHeight = info.pixelHeight;
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}
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void FilamentViewer::loadPngTexture(string path, ResourceBuffer rb) {
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polyvox::StreamBufferAdapter sb((char *)rb.data, (char *)rb.data + rb.size);
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std::istream inputStream(&sb);
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LinearImage* image = new LinearImage(ImageDecoder::decode(
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inputStream, path.c_str(), ImageDecoder::ColorSpace::SRGB));
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if (!image->isValid()) {
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Log("Invalid image : %s", path.c_str());
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return;
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}
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uint32_t channels = image->getChannels();
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_imageWidth = image->getWidth();
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_imageHeight = image->getHeight();
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_imageTexture = Texture::Builder()
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.width(_imageWidth)
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.height(_imageHeight)
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.levels(0x01)
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.format(channels == 3 ? Texture::InternalFormat::RGB16F
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: Texture::InternalFormat::RGBA16F)
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.sampler(Texture::Sampler::SAMPLER_2D)
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.build(*_engine);
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Texture::PixelBufferDescriptor::Callback freeCallback = [](void *buf, size_t,
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void *data) {
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Log("Deleting LinearImage");
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delete reinterpret_cast<LinearImage*>(data);
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};
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auto pbd = Texture::PixelBufferDescriptor(
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image->getPixelRef(), size_t(_imageWidth * _imageHeight * channels * sizeof(float)),
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channels == 3 ? Texture::Format::RGB : Texture::Format::RGBA,
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Texture::Type::FLOAT, nullptr, freeCallback, image);
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_imageTexture->setImage(*_engine, 0, std::move(pbd));
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}
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void FilamentViewer::loadTextureFromPath(string path) {
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string ktxExt(".ktx");
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string ktx2Ext(".ktx2");
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string pngExt(".png");
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if (path.length() < 5) {
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Log("Invalid resource path : %s", path.c_str());
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return;
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}
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ResourceBuffer rb = _resourceLoaderWrapper->load(path.c_str());
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if(endsWith(path, ktxExt)) {
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loadKtxTexture(path, rb);
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} else if(endsWith(path, ktx2Ext)) {
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loadKtx2Texture(path, rb);
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} else if(endsWith(path, pngExt)) {
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loadPngTexture(path, rb);
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}
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_resourceLoaderWrapper->free(rb);
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}
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void FilamentViewer::setBackgroundColor(const float r, const float g, const float b, const float a) {
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_imageMaterial->setDefaultParameter("showImage", 0);
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_imageMaterial->setDefaultParameter("backgroundColor", RgbaType::sRGB, float4(r, g, b, a));
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const Viewport& vp = _view->getViewport();
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_imageMaterial->setDefaultParameter("transform", _imageScale);
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}
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void FilamentViewer::clearBackgroundImage() {
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_imageMaterial->setDefaultParameter("showImage", 0);
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if (_imageTexture) {
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Log("Destroying existing texture");
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_engine->destroy(_imageTexture);
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Log("Destroyed.");
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_imageTexture = nullptr;
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}
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}
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void FilamentViewer::setBackgroundImage(const char *resourcePath) {
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string resourcePathString(resourcePath);
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Log("Setting background image to %s", resourcePath);
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clearBackgroundImage();
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loadTextureFromPath(resourcePathString);
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// This currently just anchors the image at the bottom left of the viewport at its original size
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// TODO - implement stretch/etc
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const Viewport& vp = _view->getViewport();
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Log("Image width %d height %d vp width %d height %d", _imageWidth, _imageHeight, vp.width, vp.height);
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_imageScale = mat4f { float(vp.width) / float(_imageWidth) , 0.0f, 0.0f, 0.0f, 0.0f, float(vp.height) / float(_imageHeight), 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f };
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_imageMaterial->setDefaultParameter("transform", _imageScale);
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_imageMaterial->setDefaultParameter("image", _imageTexture, _imageSampler);
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_imageMaterial->setDefaultParameter("showImage", 1);
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}
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///
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/// Translates the background image by (x,y) pixels.
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/// If clamp is true, x/y are both clamped so that the left/top and right/bottom sides of the background image
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/// are positioned at a max/min of -1/1 respectively
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/// (i.e. you cannot set a position where the left/top or right/bottom sides would be "inside" the screen coordinate space).
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///
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void FilamentViewer::setBackgroundImagePosition(float x, float y, bool clamp=false) {
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||||
|
||||
// to translate the background image, we apply a transform to the UV coordinates of the quad texture, not the quad itself (see image.mat).
|
||||
// this allows us to set a background colour for the quad when the texture has been translated outside the quad's bounds.
|
||||
// so we need to munge the coordinates appropriately (and take into consideration the scale transform applied when the image was loaded).
|
||||
|
||||
// first, convert x/y to a percentage of the original image size
|
||||
x /= _imageWidth;
|
||||
y /= _imageHeight;
|
||||
|
||||
// now scale these by the viewport dimensions so they can be incorporated directly into the UV transform matrix.
|
||||
// x *= _imageScale[0][0];
|
||||
// y *= _imageScale[1][1];
|
||||
|
||||
// TODO - I haven't updated the clamp calculations to work with scaled image width/height percentages so the below code is probably wrong, don't use it until it's fixed.
|
||||
if(clamp) {
|
||||
Log("Clamping background image translation");
|
||||
// first, clamp x/y
|
||||
auto xScale = float(_imageWidth) / _view->getViewport().width;
|
||||
auto yScale = float(_imageHeight) / _view->getViewport().height;
|
||||
|
||||
float xMin = 0;
|
||||
float xMax = 0;
|
||||
float yMin = 0;
|
||||
float yMax = 0;
|
||||
|
||||
// we need to clamp x so that it can only be translated between (left side touching viewport left) and (right side touching viewport right)
|
||||
// if width is less than viewport, these values are 0/1-xScale respectively
|
||||
if(xScale < 1) {
|
||||
xMin = 0;
|
||||
xMax = 1-xScale;
|
||||
// otherwise, these value are (xScale-1 and 1-xScale)
|
||||
} else {
|
||||
xMin = 1-xScale;
|
||||
xMax = 0;
|
||||
}
|
||||
|
||||
// do the same for y
|
||||
if(yScale < 1) {
|
||||
yMin = 0;
|
||||
yMax = 1-yScale;
|
||||
} else {
|
||||
yMin = 1-yScale;
|
||||
yMax = 0;
|
||||
}
|
||||
|
||||
x = std::max(xMin, std::min(x,xMax));
|
||||
y = std::max(yMin, std::min(y,yMax));
|
||||
}
|
||||
|
||||
// these values are then negated to account for the fact that the transform is applied to the UV coordinates, not the vertices (see image.mat).
|
||||
// i.e. translating the image right by 0.5 units means translating the UV coordinates left by 0.5 units.
|
||||
x = -x;
|
||||
y = -y;
|
||||
Log("x %f y %f", x, y);
|
||||
|
||||
Log("imageScale %f %f %f %f %f %f %f %f %f %f %f %f %f %f %f %f ", _imageScale[0][0],_imageScale[0][1],_imageScale[0][2], _imageScale[0][3], \
|
||||
_imageScale[1][0],_imageScale[1][1],_imageScale[1][2], _imageScale[1][3],\
|
||||
_imageScale[2][0],_imageScale[2][1],_imageScale[2][2], _imageScale[2][3], \
|
||||
_imageScale[3][0],_imageScale[3][1],_imageScale[3][2], _imageScale[3][3]);
|
||||
|
||||
auto transform = math::mat4f::translation(math::float3(x, y, 0.0f)) * _imageScale;
|
||||
|
||||
|
||||
Log("transform %f %f %f %f %f %f %f %f %f %f %f %f %f %f %f %f ", transform[0][0],transform[0][1],transform[0][2], transform[0][3], \
|
||||
transform[1][0],transform[1][1],transform[1][2], transform[1][3],\
|
||||
transform[2][0],transform[2][1],transform[2][2], transform[2][3], \
|
||||
transform[3][0],transform[3][1],transform[3][2], transform[3][3]);
|
||||
_imageMaterial->setDefaultParameter("transform", transform);
|
||||
}
|
||||
|
||||
FilamentViewer::~FilamentViewer() {
|
||||
clearAssets();
|
||||
delete _assetManager;
|
||||
|
||||
for(auto it : _lights) {
|
||||
_engine->destroy(it);
|
||||
}
|
||||
|
||||
_engine->destroyCameraComponent(_mainCamera->getEntity());
|
||||
_mainCamera = nullptr;
|
||||
_engine->destroy(_view);
|
||||
_engine->destroy(_scene);
|
||||
_engine->destroy(_renderer);
|
||||
_engine->destroy(_swapChain);
|
||||
|
||||
Engine::destroy(&_engine); // clears engine*
|
||||
}
|
||||
|
||||
Renderer *FilamentViewer::getRenderer() { return _renderer; }
|
||||
|
||||
void FilamentViewer::createSwapChain(const void *surface, uint32_t width, uint32_t height) {
|
||||
#if TARGET_OS_IPHONE
|
||||
_swapChain = _engine->createSwapChain((void*)surface, filament::backend::SWAP_CHAIN_CONFIG_APPLE_CVPIXELBUFFER);
|
||||
#else
|
||||
if(surface) {
|
||||
_swapChain = _engine->createSwapChain(width, height, filament::backend::SWAP_CHAIN_CONFIG_TRANSPARENT | filament::backend::SWAP_CHAIN_CONFIG_READABLE);
|
||||
} else {
|
||||
_swapChain = _engine->createSwapChain((void*)surface, filament::backend::SWAP_CHAIN_CONFIG_TRANSPARENT | filament::backend::SWAP_CHAIN_CONFIG_READABLE);
|
||||
}
|
||||
#endif
|
||||
Log("Swapchain created.");
|
||||
}
|
||||
|
||||
void FilamentViewer::createRenderTarget(intptr_t textureId, uint32_t width, uint32_t height) {
|
||||
// Create filament textures and render targets (note the color buffer has the import call)
|
||||
_rtColor = filament::Texture::Builder()
|
||||
.width(width)
|
||||
.height(height)
|
||||
.levels(1)
|
||||
.usage(filament::Texture::Usage::COLOR_ATTACHMENT | filament::Texture::Usage::SAMPLEABLE)
|
||||
.format(filament::Texture::InternalFormat::RGBA8)
|
||||
.import(textureId)
|
||||
.build(*_engine);
|
||||
_rtDepth = filament::Texture::Builder()
|
||||
.width(width)
|
||||
.height(height)
|
||||
.levels(1)
|
||||
.usage(filament::Texture::Usage::DEPTH_ATTACHMENT)
|
||||
.format(filament::Texture::InternalFormat::DEPTH24)
|
||||
.build(*_engine);
|
||||
_rt = filament::RenderTarget::Builder()
|
||||
.texture(RenderTarget::AttachmentPoint::COLOR, _rtColor)
|
||||
.texture(RenderTarget::AttachmentPoint::DEPTH, _rtDepth)
|
||||
.build(*_engine);
|
||||
|
||||
// Make a specific viewport just for our render target
|
||||
_view->setRenderTarget(_rt);
|
||||
|
||||
Log("Set render target for textureId %u %u x %u", textureId, width, height);
|
||||
|
||||
}
|
||||
|
||||
void FilamentViewer::destroySwapChain() {
|
||||
if(_rt) {
|
||||
_view->setRenderTarget(nullptr);
|
||||
_engine->destroy(_rtDepth);
|
||||
_engine->destroy(_rtColor);
|
||||
_engine->destroy(_rt);
|
||||
_rt = nullptr;
|
||||
_rtDepth = nullptr;
|
||||
_rtColor = nullptr;
|
||||
}
|
||||
if (_swapChain) {
|
||||
_engine->destroy(_swapChain);
|
||||
_swapChain = nullptr;
|
||||
Log("Swapchain destroyed.");
|
||||
}
|
||||
}
|
||||
|
||||
void FilamentViewer::clearAssets() {
|
||||
Log("Clearing all assets");
|
||||
if(_mainCamera) {
|
||||
_view->setCamera(_mainCamera);
|
||||
}
|
||||
|
||||
_assetManager->destroyAll();
|
||||
|
||||
Log("Cleared all assets");
|
||||
}
|
||||
|
||||
void FilamentViewer::removeAsset(EntityId asset) {
|
||||
Log("Removing asset from scene");
|
||||
|
||||
mtx.lock();
|
||||
// todo - what if we are using a camera from this asset?
|
||||
_view->setCamera(_mainCamera);
|
||||
_assetManager->remove(asset);
|
||||
mtx.unlock();
|
||||
}
|
||||
|
||||
///
|
||||
/// Set the exposure for the current active camera.
|
||||
///
|
||||
void FilamentViewer::setCameraExposure(float aperture, float shutterSpeed, float sensitivity) {
|
||||
Camera& cam =_view->getCamera();
|
||||
Log("Setting aperture (%03f) shutterSpeed (%03f) and sensitivity (%03f)", aperture, shutterSpeed, sensitivity);
|
||||
cam.setExposure(aperture, shutterSpeed, sensitivity);
|
||||
}
|
||||
|
||||
///
|
||||
/// Set the focal length of the active camera.
|
||||
///
|
||||
void FilamentViewer::setCameraFocalLength(float focalLength) {
|
||||
Camera& cam =_view->getCamera();
|
||||
_cameraFocalLength = focalLength;
|
||||
cam.setLensProjection(_cameraFocalLength, 1.0f, kNearPlane,
|
||||
kFarPlane);
|
||||
}
|
||||
|
||||
///
|
||||
/// Set the focus distance of the active camera.
|
||||
///
|
||||
void FilamentViewer::setCameraFocusDistance(float focusDistance) {
|
||||
Camera& cam =_view->getCamera();
|
||||
_cameraFocusDistance = focusDistance;
|
||||
cam.setFocusDistance(_cameraFocusDistance);
|
||||
}
|
||||
|
||||
///
|
||||
/// Sets the active camera to the GLTF camera node specified by [name] (or if null, the first camera found under that node).
|
||||
/// N.B. Blender will generally export a three-node hierarchy -
|
||||
/// Camera1->Camera_Orientation->Camera2. The correct name will be the Camera_Orientation.
|
||||
///
|
||||
bool FilamentViewer::setCamera(EntityId entityId, const char *cameraName) {
|
||||
|
||||
auto asset = _assetManager->getAssetByEntityId(entityId);
|
||||
if(!asset) {
|
||||
Log("Failed to find asset attached to specified entity id.");
|
||||
}
|
||||
size_t count = asset->getCameraEntityCount();
|
||||
if (count == 0) {
|
||||
Log("Failed, no cameras found in current asset.");
|
||||
return false;
|
||||
}
|
||||
|
||||
const utils::Entity* cameras = asset->getCameraEntities();
|
||||
|
||||
utils::Entity target;
|
||||
|
||||
if(!cameraName) {
|
||||
auto inst = _ncm->getInstance(cameras[0]);
|
||||
const char *name = _ncm->getName(inst);
|
||||
target = cameras[0];
|
||||
Log("No camera specified, using first : %s", name);
|
||||
} else {
|
||||
for (int j = 0; j < count; j++) {
|
||||
auto inst = _ncm->getInstance(cameras[j]);
|
||||
const char *name = _ncm->getName(inst);
|
||||
if (strcmp(name, cameraName) == 0) {
|
||||
target = cameras[j];
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
if(target.isNull()) {
|
||||
Log("Unable to locate camera under name %s ", cameraName);
|
||||
return false;
|
||||
}
|
||||
|
||||
Camera *camera = _engine->getCameraComponent(target);
|
||||
if(!camera) {
|
||||
Log("Failed to retrieve camera component for target");
|
||||
}
|
||||
_view->setCamera(camera);
|
||||
|
||||
const Viewport &vp = _view->getViewport();
|
||||
const double aspect = (double)vp.width / vp.height;
|
||||
|
||||
// const float aperture = camera->getAperture();
|
||||
// const float shutterSpeed = camera->getShutterSpeed();
|
||||
// const float sens = camera->getSensitivity();
|
||||
// camera->setExposure(1.0f);
|
||||
|
||||
camera->setScaling({1.0 / aspect, 1.0});
|
||||
return true;
|
||||
}
|
||||
|
||||
void FilamentViewer::loadSkybox(const char *const skyboxPath) {
|
||||
Log("Loading skybox from %s", skyboxPath);
|
||||
|
||||
removeSkybox();
|
||||
|
||||
if (skyboxPath) {
|
||||
ResourceBuffer skyboxBuffer = _resourceLoaderWrapper->load(skyboxPath);
|
||||
|
||||
if(skyboxBuffer.size <= 0) {
|
||||
Log("Could not load skybox resource.");
|
||||
return;
|
||||
}
|
||||
|
||||
image::Ktx1Bundle *skyboxBundle =
|
||||
new image::Ktx1Bundle(static_cast<const uint8_t *>(skyboxBuffer.data),
|
||||
static_cast<uint32_t>(skyboxBuffer.size));
|
||||
|
||||
_skyboxTexture =
|
||||
ktxreader::Ktx1Reader::createTexture(_engine, *skyboxBundle, false, [](void* userdata) {
|
||||
image::Ktx1Bundle* bundle = (image::Ktx1Bundle*) userdata;
|
||||
delete bundle;
|
||||
}, skyboxBundle);
|
||||
_skybox =
|
||||
filament::Skybox::Builder().environment(_skyboxTexture).build(*_engine);
|
||||
|
||||
_scene->setSkybox(_skybox);
|
||||
_resourceLoaderWrapper->free(skyboxBuffer);
|
||||
}
|
||||
}
|
||||
|
||||
void FilamentViewer::removeSkybox() {
|
||||
Log("Removing skybox");
|
||||
if(_skybox) {
|
||||
|
||||
_engine->destroy(_skybox);
|
||||
_engine->destroy(_skyboxTexture);
|
||||
_skybox = nullptr;
|
||||
_skyboxTexture = nullptr;
|
||||
}
|
||||
_scene->setSkybox(nullptr);
|
||||
}
|
||||
|
||||
void FilamentViewer::removeIbl() {
|
||||
if(_indirectLight) {
|
||||
_engine->destroy(_indirectLight);
|
||||
_engine->destroy(_iblTexture);
|
||||
_indirectLight = nullptr;
|
||||
_iblTexture = nullptr;
|
||||
}
|
||||
_scene->setIndirectLight(nullptr);
|
||||
}
|
||||
|
||||
void FilamentViewer::loadIbl(const char *const iblPath, float intensity) {
|
||||
removeIbl();
|
||||
if (iblPath) {
|
||||
Log("Loading IBL from %s", iblPath);
|
||||
|
||||
// Load IBL.
|
||||
ResourceBuffer iblBuffer = _resourceLoaderWrapper->load(iblPath);
|
||||
|
||||
if(iblBuffer.size == 0) {
|
||||
Log("Error loading IBL, resource could not be loaded.");
|
||||
return;
|
||||
}
|
||||
|
||||
image::Ktx1Bundle *iblBundle =
|
||||
new image::Ktx1Bundle(static_cast<const uint8_t *>(iblBuffer.data),
|
||||
static_cast<uint32_t>(iblBuffer.size));
|
||||
math::float3 harmonics[9];
|
||||
iblBundle->getSphericalHarmonics(harmonics);
|
||||
_iblTexture =
|
||||
ktxreader::Ktx1Reader::createTexture(_engine, *iblBundle, false, [](void* userdata) {
|
||||
image::Ktx1Bundle* bundle = (image::Ktx1Bundle*) userdata;
|
||||
delete bundle;
|
||||
}, iblBundle);
|
||||
_indirectLight = IndirectLight::Builder()
|
||||
.reflections(_iblTexture)
|
||||
.irradiance(3, harmonics)
|
||||
.intensity(intensity)
|
||||
.build(*_engine);
|
||||
_scene->setIndirectLight(_indirectLight);
|
||||
|
||||
_resourceLoaderWrapper->free(iblBuffer);
|
||||
|
||||
Log("Skybox/IBL load complete.");
|
||||
}
|
||||
}
|
||||
|
||||
double _elapsed = 0;
|
||||
int _frameCount = 0;
|
||||
|
||||
void FilamentViewer::render(uint64_t frameTimeInNanos) {
|
||||
|
||||
if (!_view || !_mainCamera || !_swapChain) {
|
||||
Log("Not ready for rendering");
|
||||
return;
|
||||
}
|
||||
|
||||
if(_frameCount == 60) {
|
||||
// Log("1 sec average for asset animation update %f", _elapsed / 60);
|
||||
_elapsed = 0;
|
||||
_frameCount = 0;
|
||||
}
|
||||
|
||||
Timer tmr;
|
||||
|
||||
_assetManager->updateAnimations();
|
||||
|
||||
_elapsed += tmr.elapsed();
|
||||
_frameCount++;
|
||||
|
||||
// Render the scene, unless the renderer wants to skip the frame.
|
||||
if (_renderer->beginFrame(_swapChain, frameTimeInNanos)) {
|
||||
_renderer->render(_view);
|
||||
_renderer->endFrame();
|
||||
} else {
|
||||
// skipped frame
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void FilamentViewer::updateViewportAndCameraProjection(
|
||||
int width, int height, float contentScaleFactor) {
|
||||
if (!_view || !_mainCamera) {
|
||||
Log("Skipping camera update, no view or camrea");
|
||||
return;
|
||||
}
|
||||
|
||||
const uint32_t _width = width * contentScaleFactor;
|
||||
const uint32_t _height = height * contentScaleFactor;
|
||||
_view->setViewport({0, 0, _width, _height});
|
||||
|
||||
const double aspect = (double)width / height;
|
||||
|
||||
Camera& cam =_view->getCamera();
|
||||
cam.setLensProjection(_cameraFocalLength, 1.0f, kNearPlane,
|
||||
kFarPlane);
|
||||
|
||||
cam.setScaling({1.0 / aspect, 1.0});
|
||||
|
||||
Log("Set viewport to width: %d height: %d aspect %f scaleFactor : %f", width, height, aspect,
|
||||
contentScaleFactor);
|
||||
}
|
||||
|
||||
void FilamentViewer::setCameraPosition(float x, float y, float z) {
|
||||
Camera& cam =_view->getCamera();
|
||||
|
||||
_cameraPosition = math::mat4f::translation(math::float3(x,y,z));
|
||||
cam.setModelMatrix(_cameraPosition * _cameraRotation);
|
||||
}
|
||||
|
||||
void FilamentViewer::setCameraRotation(float rads, float x, float y, float z) {
|
||||
Camera& cam =_view->getCamera();
|
||||
|
||||
_cameraRotation = math::mat4f::rotation(rads, math::float3(x,y,z));
|
||||
cam.setModelMatrix(_cameraPosition * _cameraRotation);
|
||||
}
|
||||
|
||||
void FilamentViewer::setCameraModelMatrix(const float* const matrix) {
|
||||
Camera& cam =_view->getCamera();
|
||||
|
||||
mat4 modelMatrix(
|
||||
matrix[0],
|
||||
matrix[1],
|
||||
matrix[2],
|
||||
matrix[3],
|
||||
matrix[4],
|
||||
matrix[5],
|
||||
matrix[6],
|
||||
matrix[7],
|
||||
matrix[8],
|
||||
matrix[9],
|
||||
matrix[10],
|
||||
matrix[11],
|
||||
matrix[12],
|
||||
matrix[13],
|
||||
matrix[14],
|
||||
matrix[15]
|
||||
);
|
||||
cam.setModelMatrix(modelMatrix);
|
||||
}
|
||||
|
||||
void FilamentViewer::grabBegin(float x, float y, bool pan) {
|
||||
if (!_view || !_mainCamera || !_swapChain) {
|
||||
Log("View not ready, ignoring grab");
|
||||
return;
|
||||
}
|
||||
_panning = pan;
|
||||
_startX = x;
|
||||
_startY = y;
|
||||
}
|
||||
|
||||
void FilamentViewer::grabUpdate(float x, float y) {
|
||||
if (!_view || !_swapChain) {
|
||||
Log("View not ready, ignoring grab");
|
||||
return;
|
||||
}
|
||||
Camera& cam =_view->getCamera();
|
||||
auto eye = cam.getPosition();// math::float3 {0.0f, 0.5f, 50.0f } ;// ; //
|
||||
auto target = eye + cam.getForwardVector();
|
||||
auto upward = cam.getUpVector();
|
||||
Viewport const& vp = _view->getViewport();
|
||||
if(_panning) {
|
||||
auto trans = cam.getModelMatrix() * mat4::translation(math::float3 { 10 * (x - _startX) / vp.width, 10 * (y - _startY) / vp.height, 0.0f });
|
||||
cam.setModelMatrix(trans);
|
||||
} else {
|
||||
auto trans = cam.getModelMatrix() * mat4::rotation(
|
||||
|
||||
0.01,
|
||||
// math::float3 { 0.0f, 1.0f, 0.0f });
|
||||
math::float3 { (y - _startY) / vp.height, (x - _startX) / vp.width, 0.0f });
|
||||
cam.setModelMatrix(trans);
|
||||
}
|
||||
_startX = x;
|
||||
_startY = y;
|
||||
|
||||
}
|
||||
|
||||
void FilamentViewer::grabEnd() {
|
||||
if (!_view || !_mainCamera || !_swapChain) {
|
||||
Log("View not ready, ignoring grab");
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
void FilamentViewer::scrollBegin() {
|
||||
// noop
|
||||
}
|
||||
|
||||
void FilamentViewer::scrollUpdate(float x, float y, float delta) {
|
||||
Camera& cam =_view->getCamera();
|
||||
Viewport const& vp = _view->getViewport();
|
||||
auto trans = cam.getModelMatrix() * mat4::translation(math::float3 {0.0f, 0.0f, delta });
|
||||
cam.setModelMatrix(trans);
|
||||
}
|
||||
|
||||
void FilamentViewer::scrollEnd() {
|
||||
|
||||
}
|
||||
|
||||
} // namespace polyvox
|
||||
|
||||
|
||||
Reference in New Issue
Block a user