89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
#ifndef FILE_MATERIAL_PROVIDER
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#define FILE_MATERIAL_PROVIDER
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#include <filament/Texture.h>
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#include <filament/TextureSampler.h>
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#include <math/mat4.h>
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namespace polyvox {
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class FileMaterialProvider : public MaterialProvider {
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Material* _m;
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const Material* _ms[1];
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Texture* mDummyTexture = nullptr;
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public:
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FileMaterialProvider(Engine* engine, void* const data, size_t size) {
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_m = Material::Builder()
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.package(data, size)
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.build(*engine);
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_ms[0] = _m;
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unsigned char texels[4] = {};
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mDummyTexture = Texture::Builder()
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.width(1).height(1)
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.format(Texture::InternalFormat::RGBA8)
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.build(*engine);
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Texture::PixelBufferDescriptor pbd(texels, sizeof(texels), Texture::Format::RGBA,
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Texture::Type::UBYTE);
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mDummyTexture->setImage(*engine, 0, std::move(pbd));
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}
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filament::MaterialInstance* createMaterialInstance(MaterialKey* config, UvMap* uvmap,
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const char* label = "material", const char* extras = nullptr) {
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auto getUvIndex = [uvmap](uint8_t srcIndex, bool hasTexture) -> int {
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return hasTexture ? int(uvmap->at(srcIndex)) - 1 : -1;
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};
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Log("CREATING MATERIAL INSTANCE");
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auto instance = _m->createInstance();
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mat3f identity;
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instance->setParameter("baseColorUvMatrix", identity);
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instance->setParameter("normalUvMatrix", identity);
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instance->setParameter("baseColorIndex", getUvIndex(config->baseColorUV, config->hasBaseColorTexture));
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instance->setParameter("normalIndex", getUvIndex(config->normalUV, config->hasNormalTexture));
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if(config->hasNormalTexture) {
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Log("HAS NORMAL TEXTURE");
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} else {
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Log("NO NORMAL TEXTURE?");
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}
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// TextureSampler sampler;
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// instance->setParameter("normalMap", mDummyTexture, sampler);
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// instance->setParameter("baseColorMap", mDummyTexture, sampler);
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return instance;
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}
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/**
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* Creates or fetches a compiled Filament material corresponding to the given config.
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*/
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virtual Material* getMaterial(MaterialKey* config, UvMap* uvmap, const char* label = "material") {
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return _m;
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}
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/**
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* Gets a weak reference to the array of cached materials.
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*/
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const filament::Material* const* getMaterials() const noexcept {
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return _ms;
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}
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/**
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* Gets the number of cached materials.
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*/
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size_t getMaterialsCount() const noexcept {
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return (size_t)1;
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}
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void destroyMaterials() {
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}
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bool needsDummyData(filament::VertexAttribute attrib) const noexcept {
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return true;
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}
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};
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}
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#endif |