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add texture methods (including unproject)

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This commit is contained in:
Nick Fisher
2024-09-16 20:51:14 +08:00
parent 7d2cf3f91b
commit 676ddc3773
19 changed files with 1093 additions and 724 deletions
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39
thermion_dart/native/src/CustomGeometry.cpp
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@@ -1,7 +1,5 @@
#include <vector>
#include "math.h"
#include <filament/Engine.h>
#include <filament/TransformManager.h>
#include <filament/Texture.h>
@@ -22,6 +20,8 @@ CustomGeometry::CustomGeometry(
uint32_t numVertices,
float* normals,
uint32_t numNormals,
float* uvs,
uint32_t numUvs,
uint16_t* indices,
uint32_t numIndices,
RenderableManager::PrimitiveType primitiveType,
@@ -35,6 +35,16 @@ CustomGeometry::CustomGeometry(
Log("numNormals %d", numNormals);
this->normals = new float[numNormals];
std::memcpy(this->normals, normals, numNormals * sizeof(float));
} else {
Log("no normals");
}
if(numUvs > 0) {
Log("numUvs %d", numUvs);
this->uvs = new float[numUvs];
std::memcpy(this->uvs, uvs, numUvs * sizeof(float));
} else {
this->uvs = nullptr;
}
this->indices = new uint16_t[numIndices];
@@ -76,7 +86,6 @@ VertexBuffer* CustomGeometry::vertexBuffer() const {
triangles.push_back(triangle);
}
// Create a SurfaceOrientation builder
geometry::SurfaceOrientation::Builder builder;
builder.vertexCount(numVertices)
@@ -92,8 +101,13 @@ VertexBuffer* CustomGeometry::vertexBuffer() const {
auto quats = new std::vector<filament::math::quatf>(numVertices);
orientation->getQuats(quats->data(), numVertices);
// Create dummy UV data
auto dummyUVs = new std::vector<filament::math::float2>(numVertices, filament::math::float2{0.0f, 0.0f});
// Use provided UVs or create dummy UV data
std::vector<filament::math::float2>* uvData;
if (this->uvs != nullptr) {
uvData = new std::vector<filament::math::float2>((filament::math::float2*)this->uvs, (filament::math::float2*)(this->uvs + numVertices * 2));
} else {
uvData = new std::vector<filament::math::float2>(numVertices, filament::math::float2{0.0f, 0.0f});
}
// Create dummy vertex color data (white color for all vertices)
auto dummyColors = new std::vector<filament::math::float4>(numVertices, filament::math::float4{1.0f, 1.0f, 1.0f, 1.0f});
@@ -118,22 +132,21 @@ VertexBuffer* CustomGeometry::vertexBuffer() const {
vertexBuffer->setBufferAt(*_engine, 0, VertexBuffer::BufferDescriptor(
this->vertices, vertexBuffer->getVertexCount() * sizeof(math::float3), vertexCallback));
// Set UV0 buffer
// Set UV0 buffer
vertexBuffer->setBufferAt(*_engine, 1, VertexBuffer::BufferDescriptor(
dummyUVs->data(), dummyUVs->size() * sizeof(math::float2),
uvData->data(), uvData->size() * sizeof(math::float2),
[](void* buf, size_t, void* data) {
delete static_cast<std::vector<math::float2>*>(data);
}, dummyUVs));
}, uvData));
// Set UV1 buffer
// Set UV1 buffer (reusing UV0 data)
vertexBuffer->setBufferAt(*_engine, 2, VertexBuffer::BufferDescriptor(
dummyUVs->data(), dummyUVs->size() * sizeof(math::float2),
uvData->data(), uvData->size() * sizeof(math::float2),
[](void* buf, size_t, void* data) {
// Do nothing here, as we're reusing the same data as UV0
}, nullptr));
// Set vertex color buffer
// Set vertex color buffer
vertexBuffer->setBufferAt(*_engine, 3, VertexBuffer::BufferDescriptor(
dummyColors->data(), dummyColors->size() * sizeof(math::float4),
[](void* buf, size_t, void* data) {
@@ -154,6 +167,8 @@ VertexBuffer* CustomGeometry::vertexBuffer() const {
CustomGeometry::~CustomGeometry() {
delete[] vertices;
delete[] indices;
if (normals) delete[] normals;
if (uvs) delete[] uvs;
}
void CustomGeometry::computeBoundingBox() {