ed444b0615
This is a breaking change needed to fully implement instancing and stencil highlighting.
Previously, users would work directly with entities (on the Dart side, ThermionEntity), e.g.
final entity = await viewer.loadGlb("some.glb");
However, Filament "entities" are a lower-level abstraction.
Loading a glTF file, for example, inserts multiple entities into the scene.
For example, each mesh, light, and camera within a glTF asset will be assigned an entity. A top-level (non-renderable) entity will also be created for the glTF asset, which can be used to transform the entire hierarchy.
"Asset" is a better representation for loading/inserting objects into the scene; think of this as a bundle of entities.
Unless you need to work directly with transforms, instancing, materials and renderables, you can work directly with ThermionAsset.
39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
#include <filament/Engine.h>
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#include <filament/Camera.h>
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#include <filament/Texture.h>
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#include <filament/VertexBuffer.h>
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#include <filament/IndexBuffer.h>
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#include <filament/RenderableManager.h>
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#include <filament/TransformManager.h>
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#include <math/mat4.h>
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#include <math/vec2.h>
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#include <math/vec3.h>
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#include <math/vec4.h>
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#include <utils/EntityManager.h>
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#include <backend/PixelBufferDescriptor.h>
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#include <vector>
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#include <algorithm>
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#include "scene/CustomGeometry.hpp"
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namespace thermion {
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class UnprojectTexture {
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public:
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UnprojectTexture(const CustomGeometry * geometry, Camera& camera, Engine* engine)
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: _geometry(geometry), _camera(camera), _engine(engine) {}
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void unproject(utils::Entity entity, const uint8_t* inputTexture, uint8_t* outputTexture, uint32_t inputWidth, uint32_t inputHeight,
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uint32_t outputWidth, uint32_t outputHeight);
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private:
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const CustomGeometry * _geometry;
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const Camera& _camera;
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Engine* _engine;
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math::float3 doUnproject(const math::float2& screenPos, float depth, const math::mat4& invViewProj);
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bool isInsideTriangle(const math::float2& p, const math::float2& a, const math::float2& b, const math::float2& c);
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math::float3 barycentric(const math::float2& p, const math::float2& a, const math::float2& b, const math::float2& c);
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};
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} |