Function aiGetMaterialTexture

code/Material/MaterialSystem.cpp:363–412

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// ------------------------------------------------------------------------------------------------
aiReturn aiGetMaterialTexture(const C_STRUCT aiMaterial *mat,
        aiTextureType type,
        unsigned int index,
        C_STRUCT aiString *path,
        aiTextureMapping *_mapping /*= nullptr*/,
        unsigned int *uvindex /*= nullptr*/,
        ai_real *blend /*= nullptr*/,
        aiTextureOp *op /*= nullptr*/,
        aiTextureMapMode *mapmode /*= nullptr*/,
        unsigned int *flags /*= nullptr*/
) {
    ai_assert(nullptr != mat);
    ai_assert(nullptr != path);

    // Get the path to the texture
    if (AI_SUCCESS != aiGetMaterialString(mat, AI_MATKEY_TEXTURE(type, index), path)) {
        return AI_FAILURE;
    }

    // Determine mapping type
    int mapping_ = aiTextureMapping_UV;
    aiGetMaterialInteger(mat, AI_MATKEY_MAPPING(type, index), &mapping_);
    aiTextureMapping mapping = static_cast<aiTextureMapping>(mapping_);
    if (_mapping)
        *_mapping = mapping;

    // Get UV index
    if (aiTextureMapping_UV == mapping && uvindex) {
        aiGetMaterialInteger(mat, AI_MATKEY_UVWSRC(type, index), (int *)uvindex);
    }
    // Get blend factor
    if (blend) {
        aiGetMaterialFloat(mat, AI_MATKEY_TEXBLEND(type, index), blend);
    }
    // Get texture operation
    if (op) {
        aiGetMaterialInteger(mat, AI_MATKEY_TEXOP(type, index), (int *)op);
    }
    // Get texture mapping modes
    if (mapmode) {
        aiGetMaterialInteger(mat, AI_MATKEY_MAPPINGMODE_U(type, index), (int *)&mapmode[0]);
        aiGetMaterialInteger(mat, AI_MATKEY_MAPPINGMODE_V(type, index), (int *)&mapmode[1]);
    }
    // Get texture flags
    if (flags) {
        aiGetMaterialInteger(mat, AI_MATKEY_TEXFLAGS(type, index), (int *)flags);
    }

    return AI_SUCCESS;
}

static constexpr unsigned int DefaultNumAllocated = 5;